Palantir shares fell about 7% and Microsoft dropped 1.8% as software stocks sold off after Anthropic unveiled its Mythos AI model.
Anthropic’s Mythos model posted a 17‑point gain on Terminal Bench 2.0 and a 13‑point gain on SWE benchmarks versus the Opus 4.6 version.
Short‑seller Michael Burry warned Anthropic’s ARR jump from $9 bn to $30 bn threatens Palantir, while Kotak analyst Kawaljeet Saluja flagged near‑ to medium‑term IT‑services disruption.
The iShares Expanded Tech‑Software Sector ETF slid 3.7%, pulling down top holdings including Palantir, Microsoft, Oracle, Salesforce and Palo Alto Networks.