The Intel stock collapse is getting worse — and the $3.7 trillion chip rout is spreading

Wall Street mostly swept up last week's tech wreckage Monday. Chip stocks kept tracking mud back through the house. About 7 in 10 S&P 500 stocks rose Monday, yet nearly every chip stock fell, and the group shed more than $400 billion in market value in a single session, by Yahoo Finance calculations. Intel (INTC) is led the way down again. (INTC ) Go deeper with AlphaSpace 59.97 -5.79 (-8.80%) At close: 4:00:01 PM EST 60.10 +0.13 (+0.22%) After hours: 4:24:51 PM EST INTCSOXX The chipmaker slid about 9% after its worst day since 1974 on Oct. 30, when a disappointing forecast knocked nearly 29% off the stock. A close below about $60.12 on Monday's close left Intel worth less than half of what it was when September ended.