The Case That Redefined Insider Trading
The legal framework governing insider trading is clear, powerful, and historically proven. A stark contradiction exists between the rigid enforcement seen in traditional markets. In contrast, there is a permissive environment in decentralized finance (DeFi).
The case of Raj Rajaratnam highlights the definitive high-water mark for law in action. He is the founder of the Galleon Group hedge fund. It showed that information asymmetry networks can be dismantled when regulators treated them like organized crime. We contrast this model with the enforcement gap existing in DeFi prediction markets. In these markets, the same illegal conduct often goes unpunished.
Raj Rajaratnam — The High-Water Mark of Enforcement
In 2011, Rajaratnam was convicted of securities fraud and conspiracy. This set a powerful precedent for how insider trading in hedge funds and corporate boardrooms would be policed.
The Galleon Group Playbook
Rajaratnam cultivated a vast network of insiders at major firms, including Goldman Sachs, Intel, IBM, and McKinsey. The scheme relied on the predictable flow of material, non-public information about earnings, mergers, and strategic moves.
- The Profit: Rajaratnam made an estimated $60 million in illicit profits by trading ahead of public announcements.
- The Collaborators: Key figures included corporate insiders like Anil Kumar from McKinsey. Rajat Gupta, a Goldman Sachs board member, was also a key figure. They both later faced their own convictions.
- The Deterrence: Rajaratnam was sentenced to 11 years in prison. This was one of the longest sentences for insider trading at the time.
The Legal Significance of Wiretaps
The case was groundbreaking. Prosecutors used wiretap evidence to prove the insider trading network. This tool was historically reserved for organized crime cases.
Rajaratnam’s case illustrates law in action. Insider trading statutes (SEC Rule 10b-5) were already in place. Nonetheless, enforcement required aggressive tools like wiretaps. Broad prosecutorial networks were also needed. It set a precedent that information asymmetry networks can be dismantled when regulators treat them with the necessary intensity.
Law on the Books vs. Law in Action
The contrast between the traditional financial system (TradFi) during the Galleon era is systemic. The decentralized market during the recent Polymarket controversy also exhibits systemic differences.
Insider Trading and Enforcement: A Comparative Ledger
1. Legal Framework
- Raj Rajaratnam (Galleon Group, 2011): SEC Rule 10b-5 under Securities Exchange Act S10(b).
- Polymarket (DeFi Prediction Markets, 2020s): CFTC S6(c)(1) under Commodity Exchange Act (event contracts).
2. Conduct
- Raj Rajaratnam (Galleon Group, 2011): Insider trading via material nonpublic info from corporate insiders (Goldman Sachs, McKinsey).
- Polymarket (DeFi Prediction Markets, 2020s): Trading on privileged data feeds (e.g., Google Trends) and whale dominance.
3. Evidence Used
- Raj Rajaratnam (Galleon Group, 2011): Aggressive prosecution, wiretaps, cooperating witnesses, criminal convictions.
- Polymarket (DeFi Prediction Markets, 2020s): On-chain transparency shows trades, but motives are opaque; enforcement relies on classification.
4. Deterrence
- Raj Rajaratnam (Galleon Group, 2011): Strong precedent; hedge funds treated like organized crime networks; 11-year prison sentence.
- Polymarket (DeFi Prediction Markets, 2020s): Weak deterrence; enforcement lag creates perception of insider-friendly arenas.
5. Outcome
- Raj Rajaratnam (Galleon Group, 2011): Criminal conviction, prison sentence, $60M illicit profits confiscated.
- Polymarket (DeFi Prediction Markets, 2020s): Platform fined ($1.4M civil fine by CFTC); insiders largely undeterred in practice.
The Core Contradiction
The CFTC’s $1.4M fine against Polymarket proves that insider trading statutes are applicable to prediction markets. Still, the absence of active surveillance is worrisome. The lack of individual criminal convictions against the insiders who manipulated the market further demonstrates the enforcement lag.
This lag is the structural difference:
- TradFi: The law acts as a powerful deterrent because enforcement is aggressive and the penalty is prison.
- DeFi: The law exists on the books. Lack of intensity in enforcement creates a vacuum. Insiders exploit this vacuum until regulators finally catch up.
Conclusion
Rajaratnam’s case shows law in action: insider trading statutes enforced with aggressive tools, producing deterrence. Polymarket shows law on the books but lag in practice: statutes exist, but enforcement cadence and jurisdictional clarity are missing. The systemic contrast highlights that insider trading is always illegal. But, deterrence depends on regulators treating DeFi markets with the same intensity. They need to treat these markets as they once treated traditional hedge funds. The SEC and CFTC must apply wiretap-level investigative tools to the blockchain. Only then will the incentive for information asymmetry stop being monetized in the decentralized gray zone.
