economy
February 11, 2026
200 Lines of Markdown Just Triggered a $285 Billion Sell-Off
A markdown file — not a product, not a platform — a markdown file catalyzed a ~$285 billion single-session collapse across software, financial services, and alternative asset managers.

TL;DR
- An open-source markdown file from Anthropic, capable of legal contract review, triggered a ~$285 billion single-session market collapse.
- Companies like Thomson Reuters, RELX, and Wolters Kluwer experienced significant stock declines following the release.
- The markdown file's simplicity demonstrated that AI could perform tasks previously requiring expensive software subscriptions and human expertise.
- The event exposed existing cracks in the per-seat SaaS licensing model, rather than directly causing them.
- The "SaaSpocalypse" revealed that firms charging premium fees for AI-driven analysis face immediate margin issues.
- The article explores further implications for enterprise software, counterarguments, and how knowledge workers are affected.
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