Trading Technologies International, Inc. v. BGC Partners, Inc.

District Court, N.D. Illinois·Decided February 22, 2022·No. 1:10-cv-00715·Unknown

Opinion

IN THE UNITED STATES DISTRICT COURT NORTHERN DISTRICT OF ILLINOIS EASTERN DIVISION

HARRIS BRUMFIELD, TRUSTEE FOR ) ASCENT TRUST, ) ) Plaintiff, ) No. 10 C 715 ) v. ) Judge Virginia M. Kendall ) IB LLC, et al, ) ) Defendants. )

MEMORANDUM OPINION AND ORDER

Following a month-long jury trial in this patent infringement action, the jury returned a verdict in Trading Technologies’(“TT”) 1 favor, finding that IB’s BookTrader product infringed TT’s ‘304 and ‘132 patents. (Dkt. 2134). The jury awarded TT $6,610,985 in damages. (Id.). Before the Court is TT’s motion for a new trial on damages and for post-trial damages discovery. Fed. R. Civ. P. 50(b); Fed. R. Civ. P. 59(a)(1)(A); Fed. R. Civ. P. 60(b)(3). For the following reasons, TT’s motion (Dkt. 2138) is denied. BACKGROUND

I. Discussion of Hot Key Framework at Trial

During discovery and trial, IB maintained that it accurately tracked the amount of customer trades executed through BookTrader since 2006, which represented only 3–5% of the total trades made through Trader WorkStation (“TWS”). (Trial Transcript at 370, 2134, 2493, 3239–40, 4116– 17) (Dkt. 2138 at Ex. 3). IB claimed to track orders based on the tool used to submit a given order

1 Since the completion of trial and the filing of this motion, TT transferred its interest in the patents-in-suit to Harris Brumfield. (Dkt. 2188). The Court accordingly granted TT’s motion to substitute Mr. Brumfield as the Plaintiff in this action. (Dkt. 2216). For purposes of consistency and to avoid confusion, however, the Court continues to refer to TT the Plaintiff. to the exchange. Specifically, every tool within TWS, including BookTrader has a unique “order originator” tag such that orders can be tracked based on each tool. (Id. at 1500, 2197, 2495). Multiple IB witnesses confirmed the accuracy of the order originator tagging process and the transactions data derived from it. (Id. at 2199, 2498–99). IB’s damages expert, Brett Reed, relied

on IB’s transaction data to derive a reasonable royalty calculation, which the jury ultimate adopted. (Trial Transcript at 3330, 3375) (Dkt. 2134). At trial, one of IB’s witnesses, Dennis Stetsenko, explained that order originator tagging is part of a larger “hot key framework.” (Id. at 2494–95) (“the actual tagging part” of the framework was the “order originator”) (see also id. at 2558) (the “[h]ot key framework is a pathway on how the order originator gets assigned.”). Stetsenko testified that the hot key framework was a means to “connect user action, mouse or key stroke, with a tool” such that it allows IB to “track orders placed from a specific tool.” (Id. at 2494). TT claims this is the first time IB disclosed the hot key framework and its relation to order tagging. II. Failure to Produce Hot Key Framework

In August 2019, TT issued the following discovery request to IB:

[D]ocuments sufficient to show how each category of information stored [customers, users, unique login identifiers, transaction data, audit data, logging data, or daily stat reports] is generated (including identify any source code files present in Trader WorkStation, WebTrader, BookTrader, and any related white- branded or white-labeled interfaces, or other programming regardless of where such files are present, responsible for logging, tracking, or generating the data)[.]

(Dkt. 2138 at Ex. 12). TT claims the hot key framework source code was responsive to this request, but that IB withheld it nonetheless. IB maintains it produced the hot key framework source code in February 2020, well before trial. (Dkt. 2162 at Ex. A–B). In a post-trial declaration, Stetsenko explains “there is a specific code for BookTrader that assigns originators for BookTrader” called the “BookTrader Hot Key Code” and a “generic Hot Key Code,” both of which can be found among the source code IB produced to TT. (Id. at Ex. Q, ¶¶ 6–8). In addition, IB retained a source code expert, Dr. Benjamin Goldberg, who examined the produced source code and opined that IB did in fact produce the generic and BookTrader-specific hot key code. (Id. at Ex. R, ¶¶ 13–21). Both Stetsenko and Dr.

Goldberg reference numerous filenames produced with the name “hotkey” in them in support of their testimony. (Id.); (id. at Ex. Q, ¶¶ 6–8). Dr. Goldberg further opined that the produced code “includes code relating to ‘originator’ field associations to indicate an order was placed using BookTrader” and that it is programmed to track such orders accurately. (Id. at Ex. R, ¶¶ 13, 22– 26). TT submits a competing declaration from Michael Fenn who maintains that notwithstanding the appearance of the term “hotkey” in the produced source code, what IB produced is not a true hot key code showing “the prevailing logic by which TWS assigns originator tags to orders placed using trading tools in TWS.” (Dkt. 2220 at Ex. B, ¶¶ 6, 12). Fenn admits TT was aware of the term “hotkey” prior to trial, but that it “had a singular meaning” as “refer[ring]

to the user-definable mapping of actions (such as to buy or sell) on to keystrokes or mouse clicks….” (Id. at ¶ 10). According to TT, however, the hot key framework as a “tagging mechanism that TWS uses … to correlate orders submitted within certain TWS tools” was not disclosed until Stetsenko’s trial testimony. (Id. at ¶ 8). III. Tracking Orders via Origination Tool versus Order Entry Tool

As part of his discussion at trial of IB’s order tracking mechanisms, Stetsenko testified:

Q: Sir, you talked about IB having a mechanism to track commission— commissions attributable to Order Entry tools, right? A: Attributable to trading tools, not Order Entry tools. Q: To what? A: To trading tools. Q: Oh, it tracks more than just Order Entry tools. It’s just trading tools in general, right? A: So it tracks orders placed from trading tools. Q: Okay. But could a trading tool be something that doesn’t allow you to enter orders? A: Yeah.

(Trial Transcript at 2551–52). In a post-trial declaration from Harris Brumfield, TT proposes a distinction between a “trading tool,” which is a “tool related to trading” that may “consist of order entry tools and non-order entry trading tools” and an “order entry tool,” which is a “tool that users interface with to submit orders.” (Dkt. 2146 at Ex. 24, ¶ 4). TT and Brumfield claim Stetsenko’s trial testimony revealed for the first time that “IB is tracking orders/trades by trading tools, and not by order entry tools” and that the hot key framework “is the component of TWS that is responsible for tracking orders/trades by trading tools in TWS.” (Id. at ¶¶ 6, 12). Brumfield testifies that “tracking orders/trades by trading tools wiped out a large percentage of BookTrader’s trades, and gave credit for those trades to other trading tools.” (Id. ¶ 14). Consequently, TT claims the transactions data IB relied on for its damages calculation is severely flawed. In an effort to verify its theory, Brumfield conducted a post-trial investigation of stat reports previously produced by IB and admitted into evidence at trial, which revealed that of the 38 order entry tools identified by IB, five tools were actually non-order entry tools that nonetheless received credit for orders. (Id. at ¶ 7) (Dkt. 2229 at ¶ 9). In his post-trial declaration, Stetsenko maintains “Brumfield is wrong—all of the tools he says are “non-order entry” tools are used by users to place orders. (Dkt. 2162 at Ex. Q, ¶ 22). He goes on to explain: The order entry tools in TWS can largely be categorized in two categories: (a) those that are self-contained (i.e.

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Trading Technologies International, Inc. v. BGC Partners, Inc., (N.D. Ill. 2022).

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