Anthropic’s October 26, 2026 S-1 filing with the SEC directly specifies that its Class A shares will list on Nasdaq under the ticker ANT, driving the market-implied odds to 97.5% for that outcome. The filing, which follows a confidential submission in June, coincides with reported first-half revenue of $16.3 billion and plans for a potentially record-sized IPO expected around mid-November. This official designation aligns with standard corporate naming conventions and removes prior uncertainty around alternatives such as ANTH or CLAU. While the strong trader consensus reflects the filing’s clarity and the company’s rapid growth trajectory, realistic scenarios that could still shift pricing include any last-minute SEC amendment or regulatory objection, though such developments appear remote given the proximity to the anticipated listing date.