House Oversight Committee Chairman James Comer has expanded a federal insider trading investigation, sending inquiry letters to Hyperliquid, Crypto.com, and PredictIt owner Aristotle Exchange. The probe centers on alleged insider trades executed immediately prior to public policy announcements, including a $1.1 billion short position opened right before a major market drop on October 10, 2025.
The $1.1 Billion Trade Ahead of Tariff News
On October 10, 2025, former President Donald Trump announced on social media that China would face 100% tariffs, triggering a sharp crypto market crash that liquidated $19 billion in leveraged positions. However, an analysis by Investing.com revealed that a wallet on decentralized exchange Hyperliquid placed a $1.1 billion short bet on Bitcoin and Ether, adding to its position just one minute before the announcement went live.
The trade generated over $150 million in profits. On-chain sleuths linked the wallet—which holds over 100,000 BTC and previously sold $4.23 billion in BTC to buy ETH—to Garrett Jin, the former CEO of BitForex. Jin denied insider trading, stating he was executing trades on behalf of a client. In a letter to Hyperliquid CEO Jeff Yan, Comer highlighted that the trade was timed precisely to a nonpublic government decision on a platform lacking identity verification.
Regulatory Scrutiny Reaches Prediction Markets
Comer's inquiry requires Hyperliquid, Crypto.com, and Aristotle Exchange to disclose their Know Your Customer (KYC) compliance procedures and detail their mechanisms for detecting suspicious trading activity. This expansion follows earlier probes launched in May against platforms Kalshi and Polymarket, which have already submitted nearly 1,000 documents to congressional investigators.
The committee noted prior incidents of platform misuse, including an April case where a soldier was charged with using confidential details to profit $400,000 on Venezuelan President Nicolás Maduro prediction markets. Additionally, Kalshi issued a lifetime ban to former Congressman George Santos for betting on his own State of the Union appearance. While traders weigh regulatory risks, Congress is pushing for stricter oversight across prediction and derivatives markets.
Key Takeaways
- Three Platforms Targeted: Hyperliquid, Crypto.com, and Aristotle Exchange received inquiry letters from the House Oversight Committee.
- Massive Short Profits: A $1.1 billion short trade on Hyperliquid netted over $150 million just before tariff news triggered $19 billion in market liquidations.
- Previous Probes: Kalshi and Polymarket have already turned over nearly 1,000 documents regarding political and event-based insider trading.
Why It Matters
The congressional investigation underscores the growing regulatory friction between decentralized trading venues and federal regulators. As platforms operating without strict KYC protocols host billions of dollars in volume, lawmakers are increasingly concerned about nonpublic government information leaking into prediction and leverage markets. If Congress mandates strict identity requirements on decentralized protocols like Hyperliquid, it could reshape how offshore and on-chain derivatives platforms operate globally.
