--- format: "aidr-story-markdown/v1" id: "0a91f5624e031cceeffe23eff70089d7f0932c2f004970c56f55c0149140eeb7" canonical_url: "https://aidr.today/0a91f562?lang=en" title: "US Chip Stocks Lose $1 Trillion in Longest Slide Since May 2025" lang: "en" requested_lang: "en" available_langs: ["en","vi"] translation_fallback: null fallback_fields: [] published_at: "2026-10-14T17:28:33.000Z" category: "Industry" topics: [] source_urls: ["https://marketbrief.now/us-markets/us-chip-stocks-lose-1-trillion-in-longest-slide-since-may-2025-67fae3bb","https://huggingnews.com/us-markets/us-chip-stocks-lose-1-trillion-in-longest-slide-since-may-2025-67fae3bb"] summary: "US chip stocks lost approximately $1 trillion in value over six consecutive trading days, with the Philadelphia Semiconductor Index dropping 3.1% on Wednesday in its worst losing streak since May 2025. The decline followed investor concerns that AI investments may not deliver returns as quickly as expected, with Marvell falling 4.2% and AMD, Intel, and Applied Materials each declining by at least 3%." --- # US Chip Stocks Lose $1 Trillion in Longest Slide Since May 2025 > [Open the canonical story]() **Published:** 2026-10-14T17:28:33.000Z **Category:** Industry ## Summary US chip stocks lost approximately $1 trillion in value over six consecutive trading days, with the Philadelphia Semiconductor Index dropping 3\.1% on Wednesday in its worst losing streak since May 2025\. The decline followed investor concerns that AI investments may not deliver returns as quickly as expected, with Marvell falling 4\.2% and AMD, Intel, and Applied Materials each declining by at least 3%\. ## Sources - [Story source]() - [Story source]()