Traders assign the highest implied probability to a November 2026 Anthropic IPO because the latest credible reporting indicates formal marketing could begin the week of November 9, positioning the listing before Thanksgiving amid preparations for a potential $2 trillion valuation. Recent delays from an earlier October target stem from finalizing a $15 billion revolving credit facility, completing analyst meetings including one scheduled for October 14, and incorporating full third-quarter financial results that reflect surging revenue—annualized run rate already above $65 billion by July with projections nearing $100–110 billion by year-end. The company’s confidential S-1 filing from June and prospectus details underscore rapid growth in its Claude large language models alongside substantial infrastructure costs, factors that support strong trader consensus around a near-term debut while leaving room for slippage into December due to market conditions or regulatory reviews.