Jane Street Embroiled in New Investigation Following US Department of Justice Inquiry

Jane Street Group Under Investigation by US Department of Justice

Key Points:

• The US Department of Justice (DOJ) has initiated an internal investigation into Jane Street Group, a prominent New York-based quantitative trading firm, for allegations of market manipulation in equities and cryptocurrency markets.
• The probe stems from claims of insider trading and algorithmic manipulation, and adds to the firm's mounting regulatory challenges.

Background:

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• The investigation was reportedly first highlighted by a Reddit user and has since gained traction on social media and crypto news platforms.
• Jane Street has faced regulatory challenges, including an ongoing tussle with Indian authorities.

Investigation Focus:

• The DOJ's inquiry focuses on Jane Street's trading activities, including potential front-running during high-profile events like the 2022 Terra ecosystem collapse.
• The firm has been linked to patterns in Bitcoin price drops around 10 a.m. Eastern Time, allegedly tied to its algorithms.
• Jane Street has denied these allegations, describing related lawsuits as "baseless" and attributing market failures to external factors.

Regulatory Battles:

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• Jane Street is currently engaged in a high-profile regulatory battle in India, which originated from a 2024 trade secrets dispute with rival firm Millennium Management.
• In April 2024, Jane Street sued two former employees, Douglas Schadewald and Daniel Spottiswood, who defected to Millennium, accusing them of stealing a proprietary options trading strategy.
• The strategy reportedly generated over $1 billion in profits for Jane Street in 2023 alone.
• The US lawsuit, which revealed details of the India-centric approach, settled in December 2024 for an undisclosed amount.

India Investigation:

• The disclosures caught the attention of India's Securities and Exchange Board of India (SEBI), prompting an investigation into potential market manipulation.
• Jane Street has challenged the order, arguing it was based on incomplete information and denying any wrongdoing.
• The case is now before India's Securities Appellate Tribunal (SAT), with the last update being an adjournment of the hearing on February 25, 2026, due to time constraints.