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Story summary
- Jim Cramer warned the AI stock sell-off mirrors the 1987 market crash.
- He recalled Black Monday on Oct. 19, 1987, when the Dow fell 22.6%.
- Portfolio-insurance triggers then caused automatic selling that pulled stocks down despite fundamentals.
- The S&P 500 fell nearly 2% last week, its biggest weekly loss since late June.
- The Nasdaq Composite dropped 4.5%, ending a four-week winning streak as semiconductor and data-center stocks fell despite unchanged fundamentals.
