Anthropic’s selection of Nasdaq as the venue for its planned IPO underpins the overwhelming market-implied odds, with multiple September 2026 reports confirming the exchange choice ahead of a potential November listing at a roughly $2 trillion valuation. The AI developer behind the Claude large language model has followed the typical path for high-growth technology firms by working with lead banks including Morgan Stanley and Goldman Sachs on a confidential S-1 filing, while recent pre-IPO investor meetings and strong revenue growth projections reinforce trader expectations. A shift to NYSE or another exchange would require an unusual reversal of these preparations, though last-minute regulatory hurdles or strategic pivots could still introduce limited uncertainty before the roadshow begins.