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Jane Street Posts $15B July Loss, First in Decade

8/15/2026

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Summary

Story summary

Jane Street posted a $15 billion loss in July 2026, its first monthly loss in a decade.
The loss came from its stake in AI hedge fund Situational Awareness, which sold holdings to Ken Griffin’s Citadel after margin calls.
Asian non-AI equity positions drew down as AI-exposed memory-chip and semiconductor stocks fell 50% in July.
Net trading revenue exceeds $40 billion while the firm refinances $14.6 billion of debt with a JPMorgan-led bond issue.

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Story summary

Jane Street posted a $15 billion loss in July 2026, its first monthly loss in a decade.
The loss came from its stake in AI hedge fund Situational Awareness, which sold holdings to Ken Griffin’s Citadel after margin calls.
Asian non-AI equity positions drew down as AI-exposed memory-chip and semiconductor stocks fell 50% in July.
Net trading revenue exceeds $40 billion while the firm refinances $14.6 billion of debt with a JPMorgan-led bond issue.