Nvidia alone accounts for a whopping 8% of the S&P 500's market capitalization, and Evercore analyst Mark Lipacis is wondering if that figure can move dramatically higher. He says investors seem doubtful,

Live Updates Live Coverage Has Ended Monday Wrap-up 4:05 pm The Vanguard S&P 500 ETF closed Monday at 590.66, down 0.4%. Optimistic About Nvidia 11:57 am Investment bank Stifel raised its price target on Nvidia to $212 ahead of Q2 earnings,

The S&P 500 notched a record high close on Wednesday ahead of quarterly results from Nvidia, Wall Street’s most closely watched event this week, which will test the rally that has pushed valuations of AI-related companies to levels that some investors view as too high.

F ederal Reserve Chairman Jerome Powell used last year's Jackson Hole, Wyo., speech to kick off a rate-cutting cycle, but Wall Street now doubts that this year's speech will signal a resumption of rate cuts. The good news for investors is that markets have already braced for disappointment somewhat.

Live Updates Live Coverage Has Ended Friday Wrap-up 4:10 pm The Vanguard S&P 500 ETF closed at 593.22 Friday, up 1.5% for the day but only 0.3% for the week. Walmart Can Still Win, Too 11:55 am Investment bank Truist lowered its price target on S&P 500 component Walmart (NYSE: WMT) stock to $109 after

S&P 500 closes lower, Dow drops more than 150 points as Powell signals Fed isn't ready to cut rates: Live updates

The major indexes close the day with losses on Thursday after wavering earlier in the session. Palantir stock adds suspense.

The S&P 500 fell for a fifth day, as Wall Street trimmed bets on a September rate cut ahead of Federal Reserve Chairman Jerome Powell’s speech at Jackson Hole on Friday. The market benchmark dropped 0.

All three major U.S. stock indexes were headed higher in Wednesday's final hour of trading, with the S&P 500 edging toward a new record close, as investors remained upbeat about the prospect of solid corporate earnings reports.