'AI Stock God' Blow-Up Drags Down Jane Street to $15 Billion July Loss, First Monthly Loss in a Decade
- Multiple media reports said Jane Street lost about $15 billion in July, which would be its first monthly loss in roughly a decade.
- The losses were linked mainly to the collapse of Situational Awareness, an AI-focused hedge fund Jane Street had invested in, and to sharp volatility in tech stocks.
- Situational Awareness, founded by former OpenAI researcher Leopold Aschenbrenner, had posted strong returns earlier this year before suffering heavy losses, margin calls, and large-scale liquidation of public stock holdings in July.
- Reuters, citing Jane Street's internal memo, reported that the firm also lost money on long positions in Asian non-AI stocks that had previously performed well.
- Jane Street said it had become more selective about risk, had closed a substantial portion of the exposures that hurt in July, and had reduced risk-taking in other strategies.
- The losses emerged as Jane Street was pursuing about $14.6 billion in debt refinancing through private markets, with investors including Pimco, Capital Group and Fidelity participating.
Jane Street was reported to have lost about $15 billion in July, a rare setback that would mark its first monthly loss in about a decade if confirmed. The losses were concentrated in positions tied to AI-related stocks and other tech holdings that had performed strongly earlier in the year.
The main trigger was the collapse of Situational Awareness, an AI-focused hedge fund founded by former OpenAI researcher Leopold Aschenbrenner. The fund had attracted attention for strong first-half performance, but it then faced heavy losses in July, margin calls, and forced sales of public stock positions.
Reuters, citing Jane Street's internal memo, also reported losses on long positions in Asian non-AI stocks. The firm said the losses came from the same trading portfolios that had generated strong results in the second quarter.
Jane Street said it had already closed much of the exposure that hurt in July and was taking a more selective approach to risk. For equity markets, the report points to a negative near-term signal for crowded AI and semiconductor trades, while the broader impact on stocks, crypto, gold, and forex appears limited and mostly neutral from the information provided.
“AI股神”爆仓拖累Jane Street 7月亏损150亿美元，十年来首次月度亏损
Jane Street 据报在7月亏损约150亿美元；如果这一数字得到确认，这将是该公司约十年来首次出现月度亏损。亏损主要集中在此前表现较强的 AI 相关股票和其他科技持仓上。
导火索是其投资的 AI 对冲基金 Situational Awareness 失速。该基金由前 OpenAI 研究员 Leopold Aschenbrenner 创办，年初因押注 AI 相关股票而受到关注，但在7月遭遇大幅回撤、保证金追缴，并被迫大规模出售公开市场股票头寸。
路透援引 Jane Street 内部备忘录称，公司在亚洲非 AI 股票的多头仓位上也出现亏损。公司表示，这些损失主要来自二季度表现突出的同一批交易组合。
Jane Street 表示，已关闭7月造成损失的相当部分敞口，并会更有选择地承担风险。就市场影响而言，这则报道对拥挤的 AI 和半导体交易构成短线利空；对股票以外的加密货币、黄金和外汇市场，按现有信息看整体影响偏中性。