U.S. stocks closed higher on Friday Oct. 9: the Dow Jones Industrial Average rose 423.31 points (0.83%) to 51,654.95; the S&P 500 gained 46.15 points (0.59%) to 7,811.51; the Nasdaq Composite added 172.83 points (0.64%) to 27,366.17.

據華爾街日報：美國費城警方表示，Anthropic本週通知警方，該公司旗下一個人工智能模型曾通過網站PhillyUnsolvedMurders.com提交了一條虛假的兇殺案線索。事件發生於今年7月，但Anthropic直到9月才發現此事。

U.S. Middle East envoy Wittekoff said the U.S., the E3, the European Commission, Ukraine and NATO representatives held constructive talks in Miami on options to de-escalate and end the Russia-Ukraine war ahead of winter. Discussions targeted winter energy supply security, grain export channels, security guarantees and long-term Ukrainian and European security arrangements, alongside post-war reconstruction, economic development and Ukraine’s EU accession. Wittekoff described the talks as productive and said they clarified direction for U.S. preparations ahead of the next engagement with Russia. Participants said they will continue diplomatic efforts to pursue a sustainable peace.