Two Robinhood Engineers Charged in Insider Trading Scheme Linked to Hyperliquid

Two engineers from Robinhood, Hefu Chai and Huaisong Xiang, have been charged with fraud in connection to an insider trading scheme involving the decentralized exchange Hyperliquid. The U.S. Attorney’s Office for the Southern District of New York alleges that the engineers used confidential information about upcoming token listings to trade futures contracts, reportedly making over $50,000 each.

The suspicious trading activities occurred between 2025 and 2026, with the engineers purportedly buying futures contracts for tokens before their employer announced new listings. Such listings typically lead to price increases, allowing those with prior knowledge to profit by selling at a higher price.

Blockchain analytics firm Kaiko had previously flagged a specific wallet, identified as 0xa1E, which executed trades that seemed to predict Robinhood’s announcements with uncanny accuracy. This wallet opened positions in various tokens just before major announcements, raising concerns about potential insider access to Robinhood’s listing pipeline.

Hyperliquid, which operates a decentralized exchange with a fully transparent on-chain order book, has faced similar scrutiny in the past. In late 2025, a wallet was found to have shorted Hyperliquid’s native HYPE token under suspicious circumstances, which was later traced back to a former employee.

While the DOJ and SEC have not formally linked the charged engineers to the suspicious wallet, this case underscores ongoing regulatory scrutiny regarding insider trading in the cryptocurrency market. The U.S. Attorney emphasized that misappropriating confidential information for trading purposes is illegal.