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Stocks plunge as Amazon, Intel and Alphabet fuel a broad tech sell-off

US stocks plunged in the final trading day of the month as earnings from Amazon ( AMZN ) and Alphabet ( GOOG , GOOGL ) this week rekindled concerns about the amount of money Big Tech is spending on its AI ambitions. The Nasdaq Composite ( ^IXIC ) tumbled 3.3% as a tech-fueled sell-off intensified. The Dow Jones Industrial Average ( ^DJI ) fell 1.2%, or over 600 points, while those on the S&P 500 ( ^GSPC ) dropped 2.2%. The Nasdaq is on track for its worst month since March 2025. Stocks fell for