Anthropic’s upcoming Nasdaq IPO, with shares priced at $70–$78 and trading set to begin November 19 under ticker ANT, anchors trader sentiment for its end-of-November valuation. The filing implies a fully diluted market cap near $1.4 trillion at the top of the range—well above the $965 billion May 2026 private round but below earlier $2 trillion targets—supported by $81 billion October run-rate revenue and a $26 billion private placement from Nvidia, Google, and other hyperscalers. Recent AI-sector volatility and a broader tech pullback have tempered expectations, producing closely matched Polymarket buckets from $1.00–1.25 trillion through $1.75–2.00 trillion as the market prices post-listing price discovery, first-week trading volume, and any immediate analyst revisions.