U.S. stock futures extended declines early after Wall Street posted its sharpest single-day decline in a month. Futures on the Nasdaq 100 (NDX),

Analysts are overwhelmingly optimistic about Alphabet's potential over the coming 12 months, as we can see through their forecasts. Wall Street's average price estimate calls for an increase of about 6% for the stock, and most analysts have a "buy" or "strong buy" recommendation on the shares.

Live Updates Get The Best Vanguard S&P 500 ETF Live Earnings Coverage Like This Every Quarter Get earnings reminders, our top analysis on Vanguard S&P 500 ETF, market updates, and brand-new stock recommendations delivered directly to your inbox.

The Cboe Volatility Index, or VIX, pushed higher as concerns over artificial-intelligence valuations and the Federal Reserve's next interest-rate move assailed markets. The VIX measures expected stock-market volatility and is widely known as [Wall Street's "fear gauge.

The U.S. stock market tumbled Thursday to one of its worst days since its springtime sell-off, as Nvidia and other AI superstar stocks kept dropping on worries their prices shot too high. Also

Wall Street delivered a mixed performance, but the S&P 500 (SP500) still managed to inch higher after last week’s sharp downturn. Optimism from the resolution of the lengthy U.S. government shutdown and upbeat trade signals helped lift markets.

Meyer Shields of Keefe, Bruyette & Woods recently downgraded Berkshire Hathaway stock to a sell rating. Many of Berkshire's businesses face a number of macroeconomic headwinds. Warren Buffett has successfully navigated numerous stock market environments during the last six decades.