Ryan Cox v. CoinMarketCap OpCo LLC, et al.

CourtDistrict Court, D. Arizona
DecidedFebruary 17, 2026
Docket3:21-cv-08197
StatusUnknown

This text of Ryan Cox v. CoinMarketCap OpCo LLC, et al. (Ryan Cox v. CoinMarketCap OpCo LLC, et al.) is published on Counsel Stack Legal Research, covering District Court, D. Arizona primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

Bluebook
Ryan Cox v. CoinMarketCap OpCo LLC, et al., (D. Ariz. 2026).

Opinion

1 WO 2 3 4 5 6 IN THE UNITED STATES DISTRICT COURT 7 FOR THE DISTRICT OF ARIZONA

9 Ryan Cox, No. CV-21-08197-PCT-SMB

10 Plaintiff, ORDER

11 v.

12 CoinMarketCap OpCo LLC, et al.,

13 Defendants. 14 15 The Court now considers Defendant BAM Trading Services Inc. d/b/a 16 Binance.US’s (“BAM”) Motion to Dismiss (Doc. 106) and Defendant CoinMarketCap 17 OpCo., LLC’s (“CMC”) Motion to Dismiss (Doc. 107). The Motions have been fully 18 briefed. For the following reasons, the Court grants BAM’s and CMC’s Motions. The 19 Court gives Plaintiff leave to amend their Amended Complaint. 20 I. BACKGROUND 21 Plaintiff Ryan Cox, an Arizona resident, filed the present putative class action 22 alleging violations of the Commodity Exchange Act (“CEA”), the Arizona Consumer 23 Fraud Act (“ACFA”), and the Sherman Act. (Doc. 105.) Plaintiff alleges that BAM and 24 CMC used “various unlawful means to artificially suppress the value of HEX”—a 25 cryptocurrency. (Id. at 1–2 ¶ 3.) The Amended Complaint alleges as follows. 26 CMC operates “the world’s most-referenced price-tracking website for 27 cryptoassets.” (Id. at 4 ¶ 14.) CMC is owned by Digital Anchor Holdings Ltd. a 28 cryptocurrency exchange formerly known as Binance Capital Management Co., Ltd. (Id. 1 at 2 ¶ 5.) BAM, Digital Anchor’s United States affiliate, is a cryptocurrency exchange 2 affiliated with CMC. (Id.) Generally, websites like CMC “generate revenue by linking 3 consumers with affiliated exchanges”—like BAM—“where [consumers] can buy and sell 4 cryptocurrencies.” (Id. at 3 ¶ 7.) Thus, consumers go to websites like CMC “to find links 5 to exchanges where they can trade their [cryptocurrencies].” (Id.) 6 CMC provides an assessment of various cryptocurrencies’ market capitalization, 7 which “is calculated by multiplying the price of a cryptocurrency with its circulating supply 8 at any given time.” (Id. at 18 ¶ 73; 21 ¶ 82.) CMC then “ranks cryptocurrencies on the 9 basis of their overall market cap in comparison to those of other cryptocurrencies.” (Id. 10 at 21 ¶ 82.) As of September 20, 2020, CMC ranked HEX as having the 20th highest 11 market cap. (Id. at 21 ¶ 85.) 12 However, on September 27, the “Suppression Period” began, during which, HEX’s 13 ranking dropped to 201st despite being “the best performing cryptocurrency of 2020.” (Id. 14 ¶¶ 83, 86.) CMC refused to adjust HEX’s ranking and thus “locked” it. (Id. ¶¶ 83, 87.) 15 This “caused HEX to trade at lower prices than it would have had the ranking not been 16 locked” because “[t]he higher a cryptocurrency is ranked, the higher up it appears on the 17 homepage of [CMC’s] website for interested users to purchase.” (Id. ¶¶ 89–90.) 18 The Amended Complaint goes on to allege that CMC’s refusal to adjust HEX’s 19 ranking persisted into 2021. (Id. at ¶ 100.) HEX’s market cap should have had it ranked 20 anywhere from 3rd to 6th on CMC; however, HEX’s ranking remained at 201st. (Id. 21 ¶¶ 100-103.) HEX was ranked between 4th and 10th on other price-tracking websites. (Id. 22 at 23 ¶ 106.) This resulted in “institutional and retail investors” not purchasing HEX. (Id. 23 ¶¶ 107, 112.) CMC is alleged to have locked HEX’s ranking to “artificially inflate[] the 24 value of some or all of the cryptocurrencies ranked above HEX,” which included 25 cryptocurrencies issued by Digital Anchor such as Binance Coin. (Id. at 24 ¶ 114.) 26 Plaintiff alleges that HEX posed a threat to CMC and BAM because it “is designed 27 to generate interest when ‘staked’, [sic] which discourages active trading.”1 (Id. at 25

28 1 Cryptocurrencies are tracked on a ledger known as a blockchain which generates new units through consensus mechanisms such as “proof of stake.” See Doretha Clemon, 1 ¶ 132.) If the “HEX model succeed[ed]” it would undermine businesses like BAM and 2 CMC insofar as those businesses “make money only when an investor trades.” (Id.) 3 Accordingly, Plaintiff asserts claims under the CEA, ACFA, and the Sherman Act. 4 The Court now considers BAM’s and CMC’s Motions under Federal Rule of Civil 5 Procedure (“Rule”) 12(b)(6). 6 II. LEGAL STANDARD 7 To survive a Rule 12(b)(6) motion for failure to state a claim, a complaint must meet 8 the requirements of Rule 8(a)(2). Rule 8(a)(2) requires a “short and plain statement of the 9 claim showing that the pleader is entitled to relief,” so that the defendant has “fair notice 10 of what the . . . claim is and the grounds upon which it rests.” Bell Atl. Corp. v. Twombly, 11 550 U.S. 544, 555 (2007) (alteration in original) (quoting Conley v. Gibson, 355 U.S. 41, 12 47 (1957)). This notice exists if the pleader sets forth “factual content that allows the court 13 to draw the reasonable inference that the defendant is liable for the misconduct alleged.” 14 Ashcroft v. Iqbal, 556 U.S. 662, 678 (2009). “Threadbare recitals of the elements of a 15 cause of action, supported by mere conclusory statements, do not suffice.” Id. 16 Dismissal under Rule 12(b)(6) “can be based on the lack of a cognizable legal theory 17 or the absence of sufficient facts alleged under a cognizable legal theory.” Balistreri v. 18 Pacifica Police Dep’t, 901 F.2d 696, 699 (9th Cir. 1988). A complaint that sets forth a 19 cognizable legal theory will survive a motion to dismiss if it contains sufficient factual 20 matter, which, if accepted as true, states a claim to relief that is “plausible on its face.” 21 Iqbal, 556 U.S. at 678 (quoting Twombly, 550 U.S. at 570). Plausibility does not equal 22 “probability,” but requires “more than a sheer possibility that a defendant has acted 23 unlawfully.” Id. “Where a complaint pleads facts that are ‘merely consistent with’ a 24 defendant’s liability, it ‘stops short of the line between possibility and plausibility . . . .’” 25 Understanding Proof-of-Stake: How PoS Transforms Cryptocurrency, Investopedia 26 (August 6, 2025) https://www.investopedia.com/terms/p/proof-stake-pos.asp. Staking involves owners offering up their units as collateral to qualify themselves to be selected as 27 a “validator.” See id.; SEC v. Coinbase, Inc., 726 F. Supp. 3d 260, 297–98 (S.D.N.Y. 2024) (describing “proof of stake” which is “an essential component of many blockchains’ 28 consensus protocols, which, among other things, are necessary to achieve agreement among users as to a data value or as to the state of a ledger on a given blockchain”). 1 Id. (quoting Twombly, 550 U.S. at 557). 2 In ruling on a Rule 12(b)(6) motion to dismiss, the well-pleaded factual allegations 3 are taken as true and construed in the light most favorable to the nonmoving party. Cousins 4 v. Lockyer, 568 F.3d 1063, 1067 (9th Cir. 2009). However, legal conclusions couched as 5 factual allegations are not given a presumption of truthfulness, and “conclusory allegations 6 of law and unwarranted inferences are not sufficient to defeat a motion to dismiss.” Pareto 7 v. FDIC, 139 F.3d 696, 699 (9th Cir. 1998). A court ordinarily may not consider evidence 8 outside the pleadings when ruling on a Rule 12(b)(6) motion to dismiss. See United States 9 v. Ritchie, 342 F.3d 903, 907 (9th Cir. 2003).

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Bluebook (online)
Ryan Cox v. CoinMarketCap OpCo LLC, et al., Counsel Stack Legal Research, https://law.counselstack.com/opinion/ryan-cox-v-coinmarketcap-opco-llc-et-al-azd-2026.