OPINION
GOLDBERG, Senior Judge:
Plaintiff CP Kelco U.S. (“Kelco”), a domestic manufacturer of xanthan gum and petitioner in the antidumping proceeding that underlies this case, challenges the final determination of the International Trade Commission (the “Commission”) that domestic industry suffered no present material injury by reason of subject imports. Xanthan Gum from Austria and China, 78 Fed. Reg. 43,226 (ITC July 19, 2013) (notice of final determination); Xanthan Gum from Austria and China, USITC Pub. 4411, Inv. Nos. 731-TA-1202-1203 (July 2013) (final determination) (including public versions of both the “Views of the Commission” and the “Staff Report,” both hereinafter cited by reference to the confidential versions in the administrative record). Kelco’s challenge takes the form of a motion for judgment on the • agency record, brought pursuant to US-CIT Rule 56.2.
For the reasons that follow, the court sustains the Commission’s determination.
BACKGROUND
On June 5, 2012, Kelco filed a petition with the Department of Commerce and with the Commission. Kelco alleged that less-than-fair-value imports from Austria and China were materially injuring domestic industry, and were also threatening injury in the future. Xanthan Gum from Austria and China, 77 Fed. Reg. 34,997, 34,997-98 (ITC June 12, 2013) (initiation of investigation). When such petitions are filed, the Commission’s responsibility is to determine whether the petitioner or domestic industry has actually been, or will likely be, injured. 19 U.S.C. § 1673d(b) (2006). (The Department of Commerce is responsible for making the prior determination that less-than-fair-value importing has or has not occurred. Id.) After a hearing and briefing on the matter, the Commission concluded that domestic industry was not suffering material injury, and was only threatened with material injury by those imports emanating from China. Views of the Commission (“Views”) at 3, 55-58, 60, CD 2-197 (Aug. 6, 2013), ECF No. 17 (Nov. 4, 2013). The Commission explained this determination in its customary Views of the Commission report. Kel-co challenges the Commission’s final determination, specifically the finding of no present material injury. Pl.’s Mot. for J. [1340]*1340on Agency R. 1-3, ECF No. 25 (“Pl.’s Br.”).
Before reaching Kelco’s specific claims, it is helpful to first foreground those claims with domestic industry, the Commission is required to consider three factors: volume of subject imports, the price effects of such imports, and the impact of such imports on domestic producers. 19 U.S.C. § 1677(7)(B)(i)(I)-(III). No one of the statutory factors need be dispositive. See Copperweld Corp. v. United States, 12 CIT 148, 156, 682 F.Supp. 552, 561-62 (1988) (Commission is free to assign “to a factor a varying degree of significance depending upon the facts of a particular case”). The Commission must also check whether the filing of the antidumping petition caused a post-petition change in any of the factors, the theory being that filing can chill less-than-fair-value importing and hide injury. 19 U.S.C. § 1677(7)(I). If the Commission finds post-petition effects, it has discretion to discount the post-petition data in order to reach an accurate injury determination. Id.
The Commission structured the Views of the Commission to align with this statutory framework. It considered each factor individually and then post-petition effects before weighing the factors together and concluding that domestic industry had suffered no material injury.
I. Subject-Import Volume
The Commission’s directive in considering subject-import volume is to evaluate “whether the volume of imports of the merchandise, or any increase in that volume, either in absolute terms or relative to production or consumption in the United States, is significant.” 19 U.S.C. § 1677(7)(C)(i). Kelco argued in administrative briefing that domestic industry had lost market share to subject imports in three out of five end-use market segments: consumer applications, food and beverage, and industrial applications. According to Kelco, the only reason that domestic industry did not lose market share at the market-wide level was that these segment-specific losses were offset by a market-share gain in the oilfield segment. Pre-hr’g Br. at 19, CD 156 (May 14, 2013), ECF No. 17 (Nov. 4, 2013).1 Kelco further argued that domestic industry’s static overall market share was itself bad news, because apparent domestic consumption had risen, and domestic industry should have captured a preferential share of this growth. See Post-hr’g Br. at 3, CD 2-170;174 (May 30, 2013), ECF No. 17 (Nov. 4, 2013).2
In the Views of the Commission, the Commission acknowledged that subject-import volume was significant under the statute and had increased in absolute terms. Views at 36-37. The Commission nonetheless emphasized that subject-import market share had remained relatively stable at the market-wide level, though differing trends had manifested in differ[1341]*1341ent market segments. Id. at 36-37 & n. 142.3
II. Price Effects
The Commission’s statutory task in evaluating price effects has two prongs: The Commission must examine both whether there has been price underselling in the United States and also whether imports have led to price depression or price suppression. 19 U.S.C. § 1677(7)(C)(ii).4 In administrative briefing, Kelco demonstrated underselling. Post-hr’g Br. at 4-6. Kelco also argued price suppression. Id. Kelco’s method for detecting price suppression was to compare raw-materials costs to net sales (“NS”) values, on the theory that any increase in raw-materials costs not mirrored in increased NS values showed price suppression. Pursuant to this theory, Kelco provided evidence that increases in raw-materials costs had indeed outstripped NS-values gains, and that these increases would have been more noticeable had factory costs not decreased. Id. at 4-5. Kelco also noted that this trend was even more acute with respect to domestic industry’s domestic sales, where NS average unit values (“AUVs”) had actually decreased slightly (while raw-materials costs had still increased). Id.
The Commission, in its analysis of price effects, acknowledged subject importers’ underselling. Views at 47, But, looking to price depression and price suppression, the Commission concluded that the former was impossible, on grounds that domestic prices had generally [[Confidential Data Deleted ]]. Id. at 48 (citing Staff Report at V-6, V-7 tbls. V-l to V-16, CD 2-179 (June 11, 2013), ECF No. 17 (Nov. 4, 2013)). The Commission further concluded that market-wide prices had not been suppressed, basing this conclusion on patterns in the COGS/NS ratio5 dur[1342]*1342ing the period of investigation (“POI”). Id. (cross-referencing Views at 56-58). As the Commission noted, although domestic producers’ domestic-sales COGS/NS ratio [[Confidential Data Deleted]] from 2010 to 2011 — at first suggesting price suppression, see supra note 4 — the same pattern occurred in those producers’ export-sales COGS/NS ratio. Id. at 56-58. The Commission concluded from this information that domestic-sales price suppression could not have occurred, at least not by reason of subject imports. Id. As for the COGS/NS ratio from 2011 to 2012, the Commission noted that, although the domestic-sales ratio [[Confidential Data Deleted ]] while the export ratio [[Confidential Data Deleted]], the rise in the domestic ratio was too small to credit as price suppressing. Id.
III. Impact
The statute requires the Commission to evaluate impact by examining a number of statutorily enumerated domestic performance indicators. 19 U.S.C. § 1677(7)(C)(iii). The Commission recounted the performance-indicator data in detail, and then summarized: “Most of the domestic industry’s performance indicators improved or remained stable ... although some declined.” Views at 53.6 Kelco did not analyze domestic performance indicators in its administrative briefing, at least as that briefing is excerpted in Kelco’s motion appendix. Confidential App. to PL’s Mot. for J. on Agency R., ECF No. 31.
IV. Post-petition Effects
After evaluating the material-injury factors, the Commission is required to consider “whether any change in [those factors] since the filing of the petition ... is related to the pendency of the investigation.” 19 U.S.C. § 1677(7)(I). The reason for this provision is that, as “[t]his court and [the Commission] consistently have recognized[,] the initiation of antidumping and countervailing duty proceedings can create an artificially low demand for affected imports, thus distorting the data on which [the Commission] relies in making its [injury] determination.” USX Corp. v. United States, 11 CIT 82, 88, 655 F.Supp. 487, [1343]*1343492 (1987) (citing Rhone Poulenc, S.A. v. United States, 8 CIT 47, 53, 592 F.Supp. 1318, 1324 (1984)). Accordingly, if the Commission does find such post-petition effects, it “may reduce the weight accorded to the data for the period after the filing of the petition in making its determination of material injury,” thereby curing the skewed injury data. 19 U.S.C. § 1677(7)(I).
Kelco argued in administrative briefing for a post-petition discount. As one argument that the filing of the petition had distorted injury data, Kelco referenced a rise in domestic producers’ U.S. shipments. Pre-hr’g Br. at 17-18. Kelco further noted that, even though subject producers’ U.S. shipments had also risen, they had not kept pace with increases in U.S. apparent consumption. Post-hr’g Br. at 7-9. The upshot, according to Kelco, was that relative demand for subject imports (absolute demand relative to apparent consumption) declined after filing. Id.
Kelco’s second post-petition-effects argument was that the petition had buoyed domestic market share by encouraging purchasers to buy domestic product instead of subject imports. According to one domestic producer, [[Confidential Data Deleted]], several purchasers had shifted from subject imports to [[Confidential Data Deleted]] expressly because of the filing of the petition. Pre-hr’g Br. at 18-19. Kelco said that this shift in production was the only thing that kept domestic market share afloat. Kelco added that the market-segmented data provided circumstantial evidence of this: Because the shifted purchases were all in the oilfield segment, the actual market shares of other segments declined, proving Kelco’s hypothetical. Post-hr’g Br. at 5-6.
The Commission analyzed post-petition effects in a footnote:
Although there is some evidence showing purchasers approached domestic producers with sales inquiries after the petition was filed, the record shows no apparent changes in the subject imports’ volume and pricing behavior in the second half of 2012, i.e., after the petition was filed. Accordingly, we decline to give less weight to the annual 2012 data based on a post-petition effect.
Views at 56 n. 223. Thus, the Commission, though it acknowledged the arguments Kelco had made at administrative briefing, ultimately concluded that subject producers’ volume metrics and pricing indicated that the filing of the petition had had no effect. Id.
V. Material-Injury Finding
Having discarded the possibility of post-petition effects, the Commission’s next task was to weigh volume, price effects, and impact data together. Doing so, it found no material injury to domestic industry. Id. at 55-58. The Commission began at the end, with impact. It recited “a number of [performance] indicators [that had] improved during the POI,” and concluded that the overall indicator data did not suggest material injury. Id. at 55-56. The Commission next harkened back to its volume analysis. Apparently referencing Kelco’s argument that domestic market share should have grown alongside U.S. apparent consumption, the Commission insisted that “[t]here is nothing atypical about [domestic producers’] share[ ] of total apparent U.S. consumption remaining ... relatively constant....” Id. at 56. Finally, the Commission addressed price effects (and also declines in domestic financial performance, which presumably corresponded to price effects). Id. at 56-57. The Commission raised the issue of causation. Any financial decline had not come from subject imports gaining market share because there was no such gain. [1344]*1344Rather, domestic “industry’s U.S. shipments rose and its market share was essentially stable from 2010 to 2012.” Id. Nor had subject imports spurred price effects. This the Commission demonstrated through the analysis of domestic-sales and export-sales COGS/NS ratios described above. Id. at 57-58. Thus, taking all the data in sum, the Commission found no material injury to domestic industry.
On appeal, Kelco raises two claims with respect to the Commission’s conclusion. First, Kelco claims that, even if the Commission was correct in providing no post-petition discount, it erred in its underlying material-injury analysis. Pl.’s Br. 25-30. Kelco argues that the Commission’s use of the COGS/NS ratio to measure price suppression was procedurally improper, and that the Commission’s injury analysis was unsupported by substantial record evidence. Id.
Second, Kelcq claims that the Commission should have provided a post-petition discount. Id. at 7-24. Kelco makes three arguments that the Commission’s post-petition analysis was procedurally improper: (1) that the Commission’s post-petition analysis was too short, Reply Br. 4-6, see also Pl.’s Br. 20-23, (2) that the Commission should have (but did not) presume that any detected post-petition effects arose from the petition, Pl.’s Br. 5-8 & n. 1, 20-23, Reply Br. 10-11, and (3) that the Commission was procedurally required to segment the market in its post-petition analysis, see PL’s Br. 7-20. Kelco further challenges the Commission’s post-petition-effects analysis on substantial-evidence grounds. Id.
SUBJECT MATTER JURISDICTION AND STANDARD OF REVIEW
The court has jurisdiction to hear this appeal under 28 U.S.C. § 1581(c) (2006). The court will uphold the Commission’s decisions unless those decisions are “unsupported by substantial evidence on the record, or otherwise not in accordance with law.” 19 U.S.C. § 1516a(b)(l)(B)(i).
The substantial-evidence standard is best understood as a word formula connoting reasonableness review. Nippon Steel Corp. v. United States, 458 F.3d 1345, 1351 (Fed.Cir.2006) (quoting SSIH Equip. SA v. U.S. Int’l Trade Comm’n, 718 F.2d 365, 381 (Fed.Cir.1983)); accord 3 Charles H. Koch, Jr., Administrative Law and Practice § 9.24[1] (3d ed. 2013). Accordingly, substantial evidence means “such relevant evidence as a reasonable mind might accept as adequate to support a conclusion” taking into account the record as a whole. Consol. Edison Co. v. NLRB, 305 U.S. 197, 229, 59 S.Ct. 206, 83 L.Ed. 126 (1938); Nippon Steel, 458 F.3d at 1351. Because the administrative body at issue must take the record as a whole into account, it must necessarily “address significant arguments and evidence which seriously undermines its reasoning and conclusions.” Altx, Inc. v. United States, 25 CIT 1100, 1117-18, 167 F.Supp.2d 1353, 1374 (2001). But the determination remains the administrative body’s own to make: This court’s function is merely to ascertain “whether there was evidence which could reasonably lead to the Commission’s conclusion.” Matsushita Elec. Indus. Co. v. United States, 750 F.2d 927, 933 (Fed.Cir.1984).
DISCUSSION
The court now considers Kelco’s two claims, and sustains the Commission as to both. First, the Commission’s underlying determination of no material injury was procedurally and substantively proper. The Commission’s use of the COGS/NS ratio to evaluate price effects was in accordance with procedural requirements. And [1345]*1345the Commission’s injury determination was supported by substantial evidence.
Second, the Commission’s finding of no post-petition effects likewise survives Kel-co’s procedural and substantive challenges. As a procedural matter, the Commission dedicated a sufficient portion of its inquiry to post-petition effects, and moreover had no duty to presume that any post-petition effects were caused by the petition, or to conduct a market-segmentation analysis. The Commission’s post-petition-effects determination also satisfies the substantial-evidence standard. In any event, any error in the Commission’s post-petition-effects analysis was harmless, because it would not have affected the underlying injury determination.
I. Assuming that the Commission Did Not Err in Finding No Post-petition Effects, its Underlying Injury Determination Was Supported by Substantial Evidence and Otherwise in Accordance with Law
Kelco’s first claim is that, regardless of whether the Commission found post-petition effects, it erred in its underlying material-injury analysis. Kelco first raises a procedural argument, that the Commission should have used data other than the COGS/NS ratio to analyze price effects, see Pl.’s Br. 29, and that it misused the COGS/NS ratio in any case, id. at 24-25. Second, Kelco argues under substantial evidence that the Commission was obligated to consider market-segment data in evaluating material injury. Id. at 25-30. The court rejects both arguments.
A. The Commission’s Use of the COGS/NS Ratio Was Procedurally in Accordance with Law
Kelco challenges the particular metric by which the Commission evaluated price suppression: the COGS/NS ratio. Kelco levies two arguments, the first implicit, the next explicit. First, Kelco focuses in its briefing on the ratio of raw-materials costs — a subcomponent of COGS — to net sales, thus implying that the Commission should have followed suit. PL’s Br. 29. But there is nothing unusual about the Commission’s decision to focus on the COGS/NS ratio. See Siemens Energy, 38 CIT at -, 992 F.Supp.2d at 1335; Nucor, 2013 WL 3033385, at *2. And the Commission’s practice of focusing on the COGS/NS ratio, rather than a subcom-ponent ratio, makes good sense: Should an increase in one subcomponent of COGS be offset by a decrease in another subcompo-nent, domestic industry would not have any need to raise prices to avoid price suppression — the offset would handle that for it. Indeed, as evident from Kelco’s own administrative briefing, that happened to a certain extent in this case. Post-hr’g Br. at 4-5 (noting that increased raw-materials costs were somewhat offset by decreasing factory and other costs). Kelco’s implicit argument against the Commission’s COGS/NS methodology therefore fails.
Kelco’s second argument against the Commission’s use of the COGS/NS ratio is more explicit. Kelco argues that the Commission’s inference from the export-sales COGS/NS ratio was improperly drawn because “[tjhere is no record evidence suggesting that the domestic industry faces no competition in its export markets.” PL’s Br. 25. Kelco’s point is that if there is competition in the export markets, prices might be suppressed there too, such that comparison between domestic and export markets does not disprove its position that the change in the domestic COGS/NS ratio was caused by the subject imports. But this mischaracterizes the mechanics of the Commission’s injury-and-causation in[1346]*1346quiry. The Commission’s obligation is not to disprove injury (whether in the form of shifts in volume, price effects, other impacts, or some permutation thereof) or causation by subject imports. Rather, the Commission must affirmatively find both injury and causation. Comm. for Fair Coke Trade v. United States, 28 CIT 1140, 1168, 2004 WL 1615600 (2004) (“A finding of material injury requires a causal, not merely temporal, connection between less than fair value sales and material injury.”). To make such a finding, the Commission needs evidence. In this case, the Commission noted that it had no evidence that any change in the domestic COGS/NS ratio (an indication of possible price suppression) had been caused by subject imports because such a change also occurred abroad. If Kelco wanted to overcome that absence of evidence, it needed to give proof-either proof of causation in the domestic market, or that there is something more than a mere chance of export-market competition. Therefore, Kelco’s second argument against the Commission’s use of the COGS/NS ratio also fails, and the whole of the Commission’s COGS/NS analysis was procedurally in accordance with law.
B. The Commission’s Determination of No Material Injury Was Supported by Substantial Evidence
Kelco next argues that substantial record evidence compelled the Commission to at least acknowledge market-segment data in evaluating material injury. Pl.’s Br. 25-30. By way of clarification, Kelco is not claiming that the Commission is as a matter of law required to segment markets in all of its material-injury determinations. See, e.g., Pl.’s Reply to Def.’s Resps. 11-12, ECF No. 49 (“Reply Br.”) (“Defendant construed Kelco’s position to mean that the Commission is required to perform a market segment analysis. Defendant mis-characterizes Kelco’s argument.” (citation omitted)). The Commission is certainly not required to segment the market every time it considers material injury. See 19 U.S.C. § 1677(4)(A) (“The term ‘industry’ means the producers as a whole of a domestic like product, or those producers whose collective output of a domestic like product constitutes a major proportion of the total domestic production of the product.” (emphasis added)); see also Tropicana Prods., Inc. v. United States, 31 CIT 548, 559-60, 484 F.Supp.2d 1330, 1341 (2007); Cleo, Inc. v. United States, 30 CIT 1380, 1399-1400, 2006 WL 2685080 (2006); Comm. for Fair Coke Trade 28 CIT at 1166-67; cf. Altx, 25 CIT at 1113-15, 167 F.Supp.2d at 1369-71 (holding that the Commission is not required to consider segments of domestic industry injured by dumping separately from those segments perhaps less injured because the producers in the latter segment also import subject imports); Copperweld, 12 CIT at 165-66, 682 F.Supp. at 569-70 (holding that the Commission is not required to consider injury to individual producers). See generally Viraj Grp., Ltd. v. United States, 343 F.3d 1371, 1377-78 (Fed.Cir.2003) (holding that the court cannot compel the Department of Commerce to conduct its analysis in a manner not mandated by statute). Far from it: Segmenting the market can actually thwart the Commission’s statutory duty, which is to determine whether the entire industry, not particular producers, has been injured. Calabrian Corp. v. U.S. Int’l Trade Comm’n, 16 CIT 342, 354, 794 F.Supp. 377, 385 (1992) (“That Congress intended for the Commission to consider the entire industry is clear”); Altx, 25 CIT at 1114, 167 F.Supp.2d at 1369-70 (“Although one segment of the industry may benefit from dumping while another segment is harmed, the statute does not permit the ITC to manipulate its material injury analysis in favor of petitioners by [1347]*1347focusing exclusively on the segment of the defined industry that is harmed.... With regard to evaluating the impact of subject imports, the statute requires the Commission to focus on the ‘state of the industry.’” (emphasis in original) (citations omitted)); Copperweld, 12 CIT at 165-66, 682 F.Supp. at 569 (“Th[e statutory] language makes it manifestly clear that Congress intended the ITC [to] determine whether or not the domestic industry (as a whole) has experienced material injury due to the imports. This language defies the suggestion that the ITC must make a disaggregated analysis of material injury. Furthermore, it appears that if Congress had intended that the ITC analyze injury on a disaggregated basis, Congress would have made this intention explicit, as it did for example in regard to regional industries.”). Given this clear precedent, Kelco is wise to avoid the contention that the Commission is procedurally compelled to segment markets whenever it makes an injury determination.
Rather, Kelco claims that substantial evidence in this particular case required the Commission to segment the market and find material injury. Kelco grounds its claim in the Commission’s finding that there was “predominant underselling” during the POI. Views at 47; see PL’s Br. 29-30; Reply Br. 11-12. According to Kelco, the Commission fashioned a “paradox” when it, despite acknowledging such underselling, nonetheless found neither a loss of domestic market share nor price effects. PL’s Br. 29-30; Reply Br. 11. Kelco adds that the solution to this so-called paradox was readily available to the Commission, insofar as Kelco had cited record evidence of segment-specific market-share fluctuations and price effects in its administrative briefing. PL’s Br. 25-30; Reply Br. 11-12. Kelco contends that by ignoring this evidence, the Commission violated the Altx rule that it “must address significant arguments and evidence which seriously undermines its reasoning and conclusions.” PL’s Br. 30 (citing Altx, 25 CIT at 1117-18, 167 F.Supp.2d at 1374). Furthermore, according to Kelco, the Commission did not ignore such segment-specific effects when analyzing threat of future injury, such that the Commission’s omission when analyzing material injury was arbitrary. PL’s Br. 29 (citing Views at 50).
The trouble with Kelco’s argument is that there was no paradox to be resolved. It must be remembered that the Commission’s statutory duty is not to detect injury writ large. See Altx, 25 CIT at 1114, 167 F.Supp.2d at 1369-70. Rather, it is to decide whether there has been an injury to domestic industry as a whole, looking to the enumerated factors and what other evidence the Commission deems appropriate. 19 U.S.C. §§ 1673d(b), 1677(4)(A), 1677(7)(B)(i)-(ii). And although it may well be an economic truth that underselling always has some effect on domestic industry — for example, in specific segments — it is by no means certain that this effect will manifest at the market-wide level. This being the case, it is perfectly permissible for the Commission to acknowledge underselling but still find no market-wide injury. The Commission need not segment the market. Copperweld, 12 CIT at 165-66, 682 F.Supp. at 569. Put another way, it is no paradox to say that, despite underselling, domestic industry suffered no injury of the market-wide kind the Commission is looking for.
Without a paradox, the Commission’s conclusion of no material injury is not undermined. And if the Commission’s conclusion is not undermined, then Altx does not impose on the Commission a duty to address any evidence or arguments — including Kelco’s tendered evidence of seg[1348]*1348ment specific market-share fluctuations and price effects. Altx, 25 CIT at 1117-18, 167 F.Supp.2d at 1374. To require the Commission to discuss market-segmented data in such a case would be to add to the Commission’s statutory duty — and that is beyond this court’s mandate. Viraj Grp., 343 F.3d at 1377-78.
Kelco also raises an arbitrariness challenge to the Commission’s decision to fore-go consideration of segment-specific price effects in its material-injury analysis. Kel-co notes that the Commission did look to segment-specific price effects in its threat-of-material-injury analysis. Pl.’s Br. 29 (quoting Views at 50). Because the Commission was then willing to pierce the veil and find a likelihood of future oilfield-segment price depression, Kelco argues, it should have done the same with material injury. Id. But neither the change in approach nor the different conclusion about possible future price effects undermines the Commission’s present-injury conclusion. Regarding the different conclusion, the present-material-injury and threat-of-future-injury inquiries are statutorily and substantively discrete. Compare 19 U.S.C. § 1677(7)(C), with id. § 1677(7)(F) (establishing different inquiries with different elements for present-injury and threat analyses). And with respect to the change in approach, this court has afforded the Commission a wide berth in choosing when and when not to consider market-segment data in its injury analyses. In Cleo, for example, this court upheld a material injury finding after passing over without comment the Commission’s decision to discuss market segments when analyzing volume and price effects, but not impact. 30 CIT at 1400. The court did so even despite the fact that the Commission had provided only the cursory explanation that it had discussed segments “when appropriate.” Id. The Commission’s material-injury analysis was acceptable to the court given the clear statutory language indicating that the Commission’s task is to analyze injury to domestic industry as a whole. See id. The gap between the Commission’s use and nonuse of segmentation is less drastic in this case, insofar as the Commission’s only resort to market segments comes under a different statutory heading than the nonuse that Kelco complains of. See Pl.’s Br. 29 (quoting Views at 50). Thus, although the Commission’s duty to articulate a “rational connection between the facts found and the choice made,” Burlington Truck Lines, Inc. v. United States, 371 U.S. 156, 168, 83 S.Ct. 239, 9 L.Ed.2d 207 (1962), can in some cases require it to adopt like analyses in like situations, cf. Altx, 25 CIT at 1110-12, 167 F.Supp.2d at 1366-68, the Commission cannot be said to be in breach of that duty in this case.
In any event, the Commission did acknowledge the segment-based market-share trends that Kelco had pointed out— albeit to a limited extent. Compare Views at 37 n. 142, with Post-hr’g Br. 5-6. In light of this partial acknowledgement and also the reasoning adduced above, the mere fact that the Commission did not acknowledge segment-specific price-effects trends does not render the Commission’s material-injury finding unsupported by substantial evidence. PL’s Br. 27-30.
II. The Commission’s Determination that the Filing of the Petition Did Not Result in Post-petition Effects Was Procedurally in Accordance with Law and Was Supported by Substantial Evidence
Kelco’s second claim is that the Commission should have discounted the injury data that followed the filing of the petition. PL’s Br. 4-25; Reply Br. 2-11. As discussed above, the Commission chose not to provide a post-petition discount after it evaluated the possibility in a footnote:
[1349]*1349Although there is some evidence showing purchasers approached domestic producers with sales inquiries after the petition was filed, the record shows no apparent changes in the subject imports’ volume and pricing behavior in the second half of 2012, i.e., after the petition was filed. Accordingly, we decline to give less weight to the annual 2012 data based on a post-petition effect.
Views at 56 n. 223. Kelco claims that the Commission made the wrong decision, and supports this claim with two arguments: First, the Commission did not follow the proper statutory procedure in evaluating the possibility of post-petition effects, Pl.’s Br. 7-23 & n. 1; Reply Br. 4-6,10-11; and second, as a substantive matter, the Commission’s determination of no post-petition effects was not supported by substantial evidence, Pl.’s Br. 7-20. Both arguments are without merit. And even if either argument were meritorious, the Commission’s error would be harmless.
A. The Commission’s Determination of No Post-petition Effects Was Procedurally in Accordance with Law
Kelco first argues that the Commission’s determination of no post-petition effects was procedurally improper, insofar as the Commission failed its statutory obligation to consider “whether any change in [the injury factors] since the filing of the petition ... is related to the pendency of the investigation.” 19 U.S.C. § 1677(7)(I). Kelco’s argument has three prongs: (1) The Commission did not adequately “consider” the possibility of post-petition effects within the meaning of the statute, see Reply Br. 4-6, PL’s Br. 20-23, (2) the Commission failed to presume that any post-petition effects arose from the filing of the petition, PL’s Br. 5-8 & n. 1, 20-23, Reply Br. 10-11, and (3) the Commission did not, but was procedurally required to, analyze post-petition effects via a market-segmentation analysis, see PL’s Br. 7-20.
In the first prong of its argument, Kelco asserts j;hat the Commission’s evaluation of post-petition data did not live up to the statutory directive to “consider” post-petition effects. Reply Br. 4-6. According to Kelco, in order to comply with statute, the Commission must collect post-petition data, compile it in the staff report, and discuss it in the Views of the Commission. Reply Br. 4 (citing Gold East Paper (Jiangsu) Co. v. United States, 36 CIT -, -, 896 F.Supp.2d 1242, 1260 (2012)). Specifically, Kelco argues that the Commission should have dedicated more text to post-petition effects, and should have placed such text above the footnote line. Reply Br. 4-6.7
[1350]*1350Even assuming Kelco is correct about the inquiry required by the term “consider,” Defendant’s Views of the Commission discussion was sufficient. Contrary to Kelco’s contention, the Commission’s discussion in the Views of the Commission need not be of some talismanic length or in some preordained place. See, e.g., Nitrogen Solutions Fair Trade Committee v. United States, 29 CIT 86, 101, 358 F.Supp.2d 1314, 1329 (2005) (sustaining Commission’s determination that domestic industry neither suffered material injury nor was threatened by such, even when Commission’s finding of no post-petition effects was premised on one footnote of analysis in the relevant Views of the Commission report, in which the commission asserted that the alleged effect of the petition began before the petition was filed, Urea Ammonium Nitrate Solutions from Belarus, Russia and Ukraine, USITC Pub. 3591, Inv. Nos. 731-TA-1006-1008, at 15 n. 85, 2003 WL 1903583 (Apr.2003) (final determination)). In this case, the Commission offered some discussion of post-petition effects, which' was all that it was statutorily required to do. Views at 56 n. 223; see 19 U.S.C. § 1677(7)(1). Kelco’s argument that the Commission did not follow the “consideration” process therefore fails.
The second prong of Kelco’s argument is that the Commission, in evaluating post-petition effects, ignored its past practice of presuming that any detected effects had been caused by the filing of the petition. Pl.’s Br. 5-8 & n. 1, 20-23, Reply Br. 10-11. This procedural prong of Kelco’s argument can be disposed of without reaching the necessary substantive assumption that there were any post-petition effects, because Kelco’s purported presumption does not exist.8
When an agency does establish a consistent practice, this can sometimes bind it to at least explain any departure therefrom. E.g., Consol. Bearings Co. v. United States, 348 F.3d 997, 1007 (Fed.Cir.2003) (holding that agency acts arbitrarily and capriciously when it “consistently followed a contrary practice in similar circumstances and provide[s] no reasonable explanation for the change in practice”). But, as noted, the wrinkle in this case is that Kelco has not sufficiently demonstrated that its claimed practice has ever been adopted by the Commission. Kelco cites but one Commission investigation, Certain Coldr-Rolled Steel Products from Argentina, Belgium, Brazil, China, France, Germany, Korea, the Netherlands, New Zealand, Russia, South Africa, Spain, Taiwan, Turkey, and Venezuela, USITC Pub. No. 3551, Inv. Nos. 701-TA-423-425 & 731-TA-964, 966-970, 973-978, 980 & 982-983, at 9, 2002 WL 31624567 (Nov.2002) (final determination), as evidence of the apparent practice, and specifically references language that is at best ambiguous on the issue:
The statute allows the Commission to reduce the weight accorded to data for the period after the filing of the petition upon considering whether any change in the volume, price effects, or impact of imports since the filing of the petition is [1351]*1351related to the pendency of the investigation. The presumption that such change is related to the pendency of the investigation is rebuttable.
Pi’s Br. 7 n. 1; Reply Br. 10-11. One investigation does not make for a “consistent” practice. And, in any event, the cited language does not prove Kelco’s point: A presumption to the detriment of subject importers is mentioned, but nothing is said of how it is imposed or whether such imposition is mandatory- — the precise question at issue. Id.9 Thus, Kelco has not established that the Commission has a past practice of presuming that post-petition effects are caused by the filing of the petition.10
The final prong of Kelco’s procedural argument — that the Commission was required to conduct a market-segmentation analysis as a matter of law — also fails. Just as the Commission is under no procedural obligation to segment .the market when conducting its more general material-injury determination, neither must the Commission do so when considering post-petition effects. After all, the primary reason that market segmentation is not required in the general material-injury context is that the definition of the term “industry” in 19 U.S.C. § 1677(4)(A) — both on its face and as interpreted by this court — regards industry as a whole. See, e.g., Cleo, 30 CIT at 1400. That same term “industry” is used again in 19 U.S.C. § 1677(7)(I), the section that sets forth the court’s task in evaluating post-petition effects. There is no reason to believe that the meaning of “industry” should shift [1352]*1352from context to context, Ratzlaf v. United States, 510 U.S. 135, 143, 114 S.Ct. 655, 126 L.Ed.2d 615 (1994), all the less so because the term is centrally and uniformly defined. Therefore, the Commission cannot have erred as a procedural matter by declining to segment its analysis of post-petition effects. See Viraj Grp., 343 F.3d at 1377-78.
B. The Commission’s Determination of No Post-petition Effects Was Supported by Substantial Evidence
Because the Commission’s post-petition-effects determination was procedurally in accordance with law, the only remaining question is whether it was unsupported by substantial evidence. Kel-eo again founds its substantial-evidence argument on the Altx rule that the Commission “must address significant arguments and evidence which seriously undermines its reasoning and conclusions.” 25 CIT at 1117-18, 167 F.Supp.2d at 1374. This time, Keleo alleges that the Commission’s conclusion of no post-petition effects was undermined by record evidence of a post-petition decline in relative dqmand for oilfield-segment imports-evidence that the Commission did not acknowledge. PL’s Br. 8-12; Reply Br. 6-7. Keleo further contends that three pieces of record evidence show that the petition was the cause of this decline: (1) reports by C.P. Keleo and [[Confidential Data Deleted]] that they experienced [[Confidential Data Deleted]] post-petition effects, Pl.’s Br. 13-15; Reply Br. 10, (2) one prominent oilfield-segment purchaser’s shift of [[Confidential Data Deleted]] of supply from subject imports to domestic supply, PL’s Br. 15-18; Reply Br. 7-8, and (3) purchasers and importers’ documentation of post-petition changes in subject importers’ import volume and pricing behavior, PL’s Br. 18-20; Reply Br. 9-10.
The problem, once again, is that the evidence Keleo claims the Commission unduly ignored — evidence of a segment-specific decline in relative demand — is not significant, undermining evidence within the meaning of Altx. As shown above in Discussion Part II.A, the Commission’s task in evaluating post-petition effects is to look to the industry as a whole. 19 U.S.C. § 1677(4)(A), (7)(I). To hold that evidence of segment-specific post-petition effects is Altx significant, such that it necessarily requires the Commission’s consideration, is to amplify the Commission’s statutory task. This the court cannot do. See Viraj Grp., 343 F.3d at 1377-78.
Keleo suggests alternatively that it is past Commission practice, not Altx, that requires the Commission to consider segment-specific post-petition effects. See PL’s Br.. 11-12 (citing Certain Activated Carbon from China, USITC Pub. 3913, Inv. No. 731-TA-1103, at 17, 2007 WL 1417650 (Apr.2007) (final determination)). As already noted, past Commission practice can sometimes bind future decision-making. Consol. Bearings, 348 F.3d at 1007. But the difficulty is that Kelco’s cited investigation does not demonstrate any such past Commission practice. In Certain Activated Carbon, the Commission provided a post-petition discount after finding that the filing of the relevant petition triggered a market-wide decline in absolute demand for, and increase in price of, subject imports. Certain Activated Carbon from China, USITC Pub. 3913, Inv. No. 731-TA-1103, at 17 (Apr.2007) (final determination). Thus, Certain Activated Carbon does not require the Commission to examine segment-specific effects.
In any event, the Commission did respond to Kelco’s segment-specific post-pe[1353]*1353tition cause-and-effeet evidence. As mentioned above, the Commission evaluated post-petition effects in a footnote. The Commission stated,
Although there is some evidence showing purchasers approached domestic producers with sales inquiries after the petition was filed, the record shows no apparent changes in the subject imports’ volume and pricing behávior in the second half of 2012, i.e., after the petition was filed. Accordingly, we decline to give less weight to the annual 2012 data based on a post-petition effect.
Views at 56 n. 223. In this footnote, the Commission acknowledged the causation proof offered by Kelco, albeit in a limited manner. That proof tended to show an [[Confidential Data Deleted ]] in domestic producers’ post-petition activity — precisely the “some evidence” that the Commission mentioned. Pl.’s Br. 12-20, 22; Reply Br. 6-11. And the Commission followed this mention with an explanation of why the causation proof did not necessarily lead to a finding of post-petition effect: Looking to the market as a whole, two of the hallmark vectors for evaluating both material injury and post-petition effect — volume and price, 19 U.S.C. § 1677(7)(I) — registered “no apparent change” after the filing of the petition. Views at 56 n. 223.11 The Commission’s reliance on volume, in particular, should not have been unexpected, insofar as the Commission has looked to this metric in the past in considering post-petition effects, and to the approval of this court. See, e.g., Nitrogen Solutions, 29 CIT at 101, 358 F.Supp.2d at 1329 (sustaining Commission’s finding of no post-petition effects in which Commission looked primarily to decline in absolute volume of subject imports, determining that the decline predated the petition); Corus Staal BV v. U.S. Int’l Trade Comm’n, 27 CIT 459, 463, 470, 2003 WL 1475045 (2003) (sustaining Commission’s finding of post-petition effects in which Commission looked primarily to decline in absolute volume of subject imports). Therefore, even assuming the Commission was required to respond to evidence of segment-specific post-petition effects, it did so. The Commission’s post-petition finding survives substantial evidence review.
C. Even Assuming that the Commission’s Determination of No Post-petition Effects Was Not Supported by Substantial Evidence or Otherwise Not in Accordance with Law, the Error Is Harmless
Finally, the court notes that any error in the Commission’s finding of no post-petition effects was harmless. Even assuming the Commission had found post-petition effects, its ultimate injury finding would not have changed. Def.’s Opp. to Pl.’s Mot. 35-36, ECF No. 36 (“U.S. Br.”).
“It is well settled that principles of harmless error apply to the review of agency proceedings.” Intercargo Ins. Co. v. United States, 83 F.3d 391, 394 (Fed.Cir.1996). Nor does this general rule have any less force when applied to the Commission’s determinations of material injury. See U.S. Steel Grp. v. United States, 96 F.3d 1352, 1367 (Fed.Cir.1996) (noting that, even had court agreed with plaintiff that Commission erred in its usage of two pieces of record evidence, the error was harmless because the Commission’s deter[1354]*1354mination was supported by substantial other record evidence).
Had the Commission found the post-petition effects alleged by Kelco, it would have had discretionary authority to “reduce the weight accorded to the data for the period after the filing of the petition.” 19 U.S.C. § 1677(7)0). It is not for this court to say how the Commission would have exercised its own statutory discretion in deciding to provide a discount or not. Reply Br. '2-8. Nor can the court say what precise level of discretionary discount the Commission might have provided. But the court can consider what the impact on the'Commission’s material-injury determination would have been had the Commission acted to the full extent of its authority in discounting post-petition data.
The Commission convincingly demonstrates that, even assuming a total discount of post-petition data, its material-injury determination would have remained the same. Had the Commission discounted the post-petition data, it would have looked to earlier data from 2010 or 2011 to detect material injury from less-than-fair-value importation. U.S. Br. 35-36. But the statutory factors that the Commission would have been obligated to consider would have remained the same: volume of subject imports, price effects on domestic industry, and impact on domestic performance indicators. 19 U.S.C. § 1677(7)(I); see U.S. Br. 35-36. With respect to each of these statutory factors, the 2010 and 2011 data is not substantially different from the 2012 data. Views at 37 (volume) (citing Staff Report at C-5 tbl. C — 1); id. at 48, 56-58 (price effects) (citing V-6, V-7 tbls. V-l to V-16); Staff Report at VI-8 tbl. VI-6, C-5 tbl. C-l (impact). Nor has Kelco provided evidence that the relevant metrics fluctuated meaningfully during 2012, but before the filing of the petition. See PL Br. Ex. 3 (summarizing data from the Staff Report at III-7 tbl. III-4, V-7 tbls.V-1 to V-14, showing no change in volume in three out of five market segments between the first and second halves of 2012).
This court has already found that the Commission’s determination of no material injury during the entire POI — from 2010 to 2012 — was valid under the assumption that the Commission was not obligated to provide a post-petition discount. See supra Discussion Part I. If the Commission’s determination as to the entire POI is valid, and if the data from 2010 and 2011 is not meaningfully different than the data from 2012, then it must be the case that a determination of no material injury from 2010 to 2011 is also valid. Therefore, it makes no difference whether or not the Commission provided a post-petition discount: The result is the same. The Commission’s finding that domestic industry suffers no material injury stands.
CONCLUSION
After carefully reviewing the parties’ briefs and the administrative record, the court sustains the Commission’s decision in all respects. Judgment will enter accordingly.