Palantir Soars 27% and Caterpillar Helps Lift the Dow 800 Points

Major stock indexes rallied on Tuesday driven by strong earnings reports. Palantir Technologies surged 27% on faster-than-expected AI platform adoption by commercial customers, while Caterpillar jumped 6% after crushing Q2 estimates with 17% revenue growth. Semiconductor stocks broadly recovered from July's selloff, with the iShares Semiconductor ETF gaining 6.3%. The Dow rose 1.5% (800 points), Nasdaq gained 1.9%, and S&P 500 added 1.3%, with participation from 22 of 30 Dow components.