{"rewrite":{"id":"r_04c571a9e29cd74897b2cbb2","clusterId":"c_79928eb948c213bc81e9b720","slug":"openai-anthropic-and-spacex-ipos-could-add-4-trillion-to-us-market","model":"deepseek-v4-flash","headline":"OpenAI, Anthropic, and SpaceX IPOs Could Add $4 Trillion to US Market","summary":"SpaceX, Anthropic, and OpenAI are all pursuing initial public offerings that could collectively raise over $200 billion and add up to $4 trillion in market capitalization. SpaceX filed in May 2026 for what is projected to be the largest IPO in history. Anthropic filed a draft registration on June 1. OpenAI is expected to file soon. The Economist and Interactive Brokers' chief strategist warn of potential disruption from the unprecedented scale.","whyItMatters":"The simultaneous IPOs of three AI giants would be the largest stock market debut in history, testing whether even the $79 trillion US market can absorb them without years of disruption.","webCardHtml":"\u003cp\u003eSpaceX filed a registration statement for an IPO with the SEC in mid-May 2026, aiming to raise approximately $75 billion at a company valuation of around $1.75 trillion. Anthropic submitted a confidential draft registration on June 1, with the number of shares and price still undecided; its most recent funding round valued the company at $965 billion. OpenAI is expected to file its own IPO registration soon.\u003c/p\u003e\u003cp\u003eCombined, the three companies could raise just over $200 billion and add up to $4 trillion to US market capitalization. For comparison, the largest IPO in history, Saudi Aramco in 2019, raised $29 billion. The total market capitalization of the Russell 3000 index is $79 trillion, and the S\u0026P 500 is $69 trillion.\u003c/p\u003e\u003cp\u003eSteve Sosnick, chief strategist at Interactive Brokers, warned that if index providers prioritize including these companies in benchmarks, tracker funds managing trillions of dollars would scramble to buy new shares days after issuance. The Economist noted that while the US stock market is large enough to absorb them, some disruption in the following years should be expected.\u003c/p\u003e","blueskyPost":"SpaceX, Anthropic, and OpenAI are all going public. SpaceX filed in May for a $75B IPO. Anthropic filed June 1. OpenAI is next. Combined they could raise $200B+ and add $4T to market cap. The Economist says the market can absorb it but warns of disruption.","twitterPost":"SpaceX, Anthropic, and OpenAI are all going public. SpaceX filed in May for a $75B IPO. Anthropic filed June 1. OpenAI is next. Combined they could raise $200B+ and add $4T to market cap. The Economist says the market can absorb it but warns of disruption.","threadsPost":null,"newsletterBlurb":"Three AI giants are pursuing IPOs that could collectively raise over $200 billion. SpaceX filed in May for what is projected to be the largest IPO in history. Anthropic filed a draft registration on June 1. OpenAI is expected to file soon. The Economist and Interactive Brokers' chief strategist warn of potential disruption from the unprecedented scale.","attributionJson":"[{\"source\":\"GIGAZINE\",\"url\":\"https://gigazine.net/news/20260608-stockmarket-swallow-anthropic-spacex-openai/\",\"title\":\"Can the market handle the potential IPOs of OpenAI, Anthropic, and SpaceX, expected to be the largest stock market debut in history?\"}]","lintFlagsJson":null,"lintHits":0,"costUsd":0,"inputTokens":4267,"outputTokens":726,"status":"published","repairAttempts":0,"nextRepairAt":null,"factsAttemptedAt":1780872777,"createdAt":"2026-06-07T22:42:23.000Z","publishedAt":"2026-06-07T22:45:57.000Z","updatedAt":"2026-06-07T22:45:57.000Z"},"cluster":{"id":"c_79928eb948c213bc81e9b720","canonicalTitle":"史上最大の株式市場デビューとなることが期待されているOpenAI・Anthropic・SpaceXを市場は受け止めきれるか？","representativeArticleId":"a_27bdd74417e1cf4e2c0c9fdf","sourceCount":1,"writtenSourceCount":1,"writeAttempts":0,"isSolo":true,"entitiesJson":"{\"anime_titles\":[],\"manga_titles\":[],\"work_titles\":[],\"studios\":[],\"people\":[],\"type\":\"news\",\"domain\":\"other\",\"is_roundup\":false}","contentType":"news","status":"published","firstSeenAt":"2026-06-07T22:00:00.000Z","lastSeenAt":"2026-06-07T22:00:00.000Z","updatedAt":"2026-06-07T22:45:57.000Z"},"attribution":[{"source":"GIGAZINE","url":"https://gigazine.net/news/20260608-stockmarket-swallow-anthropic-spacex-openai/","title":"史上最大の株式市場デビューとなることが期待されているOpenAI・Anthropic・SpaceXを市場は受け止めきれるか？"}],"entities":{"anime_titles":[],"manga_titles":[],"work_titles":[],"studios":[],"people":[],"type":"news","domain":"other","is_roundup":false},"keyFacts":["SpaceX filed for an IPO in May 2026, aiming to raise $75 billion at a $1.75 trillion valuation.","Anthropic submitted a confidential draft registration for an IPO on June 1, 2026, with its most recent funding round valuing the company at $965 billion.","The three IPOs could collectively raise over $200 billion and add up to $4 trillion in market capitalization.","The largest IPO in history, Saudi Aramco in 2019, raised $29 billion, compared to the projected $75 billion from SpaceX alone.","Interactive Brokers chief strategist Steve Sosnick warned that index provider decisions could force tracker funds to buy shares days after issuance."]}