FactSet sees potential AI stock sell-off if Anthropic valuation plunges after IPO
FDS•FactSet modeled a hypothetical post-IPO Anthropic valuation plunge, projecting a 6.4% one-day Nasdaq 100 decline and a 7.3% drop in the S&P Information Technology index in a severe scenario.
1. Modeled market impact
FactSet’s November 12, 2026 analysis modeled a hypothetical severe one-day scenario in which an Anthropic valuation plunge after an IPO would coincide with a 70% VIX spike and a 0.1% decline in U.S. corporate bonds. A moderate one-month scenario projected losses of 4% for the Nasdaq 100 and 5% for the S&P Information Technology index. Equity-heavy strategies faced the largest modeled losses, while bond-tilted portfolios showed small to negligible reactions.
