The Claude Effect Is Coming for Travel

Four weeks in February rattled financial markets — all because of the launch of … AI plugins. Roughly $1.5 trillion in market value evaporated.

Here’s the pattern: Anthropic, the AI company behind Claude, announces a new capability aimed at a specific sector. The tool itself is often modest — a plugin, a blog post, a research preview. Markets then reprice the entire sector before anyone has tested whether the product actually works.

Let’s run through some of the damage:

January 30: Claude Cowork launches plugins for legal, finance, sales, and data. Thomson Reuters drops 16%, its worst day on record. LegalZoom sinks 20%. RELX falls 14%. Wolters Kluwer drops 13%. FactSet falls 10.5%. Analysts call it “Software-mageddon.”

February 6: Claude Opus 4.6 launches with coordinated agent teams. Financial data providers S&P Global, Moody’s, Morningstar, and Nasdaq all fall sharply.

February 20: Claude Code Security launches