Palantir Blowout Pushes VTI to 52-Week High, AMD Surges Ahead of Earnings

The Vanguard Total Stock Market ETF (VTI) jumped 1.5% on Tuesday to a fresh 52-week high of $378.64 as AI-linked earnings momentum swept through semiconductors. The catalyst was Palantir’s record quarter, with second-quarter 2026 revenue of $1.935 billion—up 93% year over year—plus adjusted EPS of $0.41 versus a $0.35 consensus. Palantir also raised full-year guidance to $8.15 billion from the prior $7.65–$7.66 billion range, lifting adjusted free cash flow guidance to $4.5–$4.7 billion. Shares gained 20%–25% while AMD rose about 7.8% ahead of its Q2 release after the bell.