Hu v. Jump Trading, LLC et al, case number 1:26-cv-05335, was filed on 2026/05/07 in the U.S. District Court for the Northern District of Illinois, according to docket listings tracked by Justia Dockets and PACERMonitor. The available docket summary identifies Jump Trading, Jump Crypto Holdings, Tai Mo Shan, Kanav Kariya, and William DiSomma as defendants, and classifies the case under 18 U.S.C. § 1962, the federal RICO statute. The filing confirms that a Chicago federal case exists, but the complaint text is still needed to pin down the reported $500 million demand and the role, if any, of Zhang Yongfeng in the same action.

Hu v. Jump Trading, LLC et al is the confirmed Chicago case

The clearest confirmed lawsuit record is a federal case filed in Chicago on 2026/05/07: Hu v. Jump Trading, LLC et al, No. 1:26-cv-05335. Justia Dockets and PACERMonitor both identify the court as the U.S. District Court for the Northern District of Illinois, which turns a vague report about a “Chicago lawsuit” into a specific, searchable case.

Field	Confirmed detail
Case	Hu v. Jump Trading, LLC et al
Case number and court	1:26-cv-05335, U.S. District Court for the Northern District of Illinois
Filed	2026/05/07
Docket classification	Racketeer/Corrupt Organization; 18 U.S.C. § 1962
Listed defendants in docket summary	Jump Trading, Jump Crypto Holdings, Tai Mo Shan, Kanav Kariya, and William DiSomma

That docket summary is the strongest confirmed procedural anchor in the story. It establishes that Zhewen Hu brought a federal civil case against Jump-related defendants, and that the case is not just rumor or recycled Terra litigation. The next key question is whether that confirmed federal filing is the same action described in reports that also name Zhang Yongfeng and a $500 million damages claim.

Zhang Yongfeng and the $500 million claim remain unresolved

The available docket does not yet prove that Zhang Yongfeng is a defendant in the same federal case as Jump Trading. Reports have described Hu as suing Jump Trading and Zhang Yongfeng together, but the currently visible summary for Hu v. Jump Trading, LLC et al lists Jump-related entities plus Kanav Kariya and William DiSomma, not Zhang.

That mismatch matters because it affects how readers interpret the entire dispute. The same reports characterize the matter as securities fraud tied to Hu’s past losses in TerraUSD and LUNA and to a later token collapse, while the federal docket metadata points instead to a RICO classification under 18 U.S.C. § 1962. Without the complaint text, it is not yet possible to say whether securities-law claims are also included, whether Zhang appears in a longer party list, or whether a separate Hu v. Zhang dispute has been blended into the Jump story.

Rutgers University’s Department of Computer Science does confirm that Yongfeng Zhang is an associate professor there. But that academic identity does not connect him to the federal Jump case by itself. For now, the main takeaway is that the lawsuit is real, while the exact overlap between the Jump filing, the reported $500 million figure, and the Zhang allegations still needs the pleadings to be read as filed.

The next decisive step is the complaint and follow-up docket activity

The existence of the federal case is confirmed, but the substantive allegations still need the complaint and later docket entries to be understood properly. The current docket summaries do not spell out any damages breakdown, any detailed UST or LUNA theory, or whether the requested relief includes compensatory damages, punitive damages, rescission, or something broader.

That also means there is no confirmed public basis yet for how the reported $500 million was calculated, how Hu connects Jump’s conduct to his losses, or whether a Zhang-linked token project is pleaded inside the same case. Equally important, the visible materials do not yet establish service status, a defendant response, an amended complaint, or any hearing date.

In practical terms, the next meaningful update will come from a docket event that reveals the complaint text or a later filing that confirms party names and counts. Until then, the strongest reading is narrow: a Chicago federal case against Jump-related defendants has been filed, but the broader narrative around Terra losses, Zhang Yongfeng, and the full damages theory remains only partly mapped.