Flash Crash Lawsuit
Dallas Hedge Fund Sues Over Losses During Flash Crash
The prices the GovPlus funds paid were probably based on "some form of computer glitch" that led to erroneous prices, the lawsuit said. The suit was filed this week in state court in Illinois against Citadel, Wolverine Trading LLC and Chicago Trading Co.
"Under Illinois law, where a plaintiff has conferred a benefit upon a defendant, and the defendant's retention of that benefit would violate equity and good conscience, the defendant must return the benefit," the lawsuit said, accusing the defendants of "unjust enrichment."
Representatives of Citadel and Wolverine said their firms had no comment on the lawsuit. A representative of CTC could not be reached.
Before markets opened on May 6, the GovPlus funds had sold some Standard & Poor's 500 index put options on the Chicago Board Options Exchange. When markets plummeted the afternoon of May 6, the funds were on the hook for potentially huge losses. Source