SEC Charges Jian Wu with Fraudulent Manipulation of Investment Models

The U.S. Securities and Exchange Commission (SEC) formally charged Jian Wu, a former employee of Two Sigma Investments, with orchestrating a complex scheme to deceive his employer and improperly inflate his compensation. According to the SEC's complaint, Wu manipulated multiple algorithmic investment models used by Two Sigma between November 2021 and August 2023, which led to significant financial harm to the company's clients.

Wu allegedly altered at least fourteen investment models—models he either created or contributed to—which were used by Two Sigma to predict the future performance of various securities. These models played a crucial role in helping the firm make key investment decisions on behalf of its clients. However, Wu misrepresented the functionality of these models, falsely claiming they generated unique forecasts. In reality, he secretly modified them to replicate the forecasts of other models already in use by Two Sigma.

As a result, Wu's actions led Two Sigma to make improper trading decisions, buying and selling securities in amounts and frequencies that deviated from the intended strategy. These unauthorized changes are said to have caused at least $165 million in client losses, which Two Sigma later reimbursed. In addition to harming the firm's clients, Wu allegedly pocketed millions of dollars in incentive compensation, which was based on the fraudulent results of these manipulated models.

The SEC has charged Wu with violating multiple provisions of the Securities Act of 1933 and the Securities Exchange Act of 1934. Specifically, Wu is accused of violating the antifraud provisions of Section 17(a) and Section 10(b), as well as Rule 10b-5. The SEC's filing seeks a variety of remedies, including injunctive relief, disgorgement of ill-gotten gains, and a civil penalty. The regulator is also seeking a permanent ban on Wu from acting as an investment adviser.

In a parallel action, the U.S. Attorney's Office for the Southern District of New York has filed criminal charges against Wu, highlighting the seriousness of the alleged fraud. This case serves as a reminder of the critical role that transparency and ethical practices play in the financial industry.