The S&P 500 added 0.1 percent and neared its all-time high set a couple weeks ago. The Dow Jones Industrial Average jumped 327 points, or 0.7 percent, to set a record for the second straight day, while the Nasdaq composite slipped 0.3 percent.

The Cboe Volatility Index, better known as the VIX or Wall Street's "fear gauge," has bounced back above 20 on Friday as investors fret about still-high stock-market valuations and the possible economic fallout from what has become the longest government shutdown in U.

Stock index futures were largely flat on Wednesday, a day after Wall Street witnessed a sell-off as the AI-tech rally halted as investors grew worried about some heavy valuations of big tech companies.

The S&P 500 slipped 0.2% in early trading. The Dow Jones Industrial Average was up 78 points, or 0.2%, as of 9:35 a.m. Eastern time, and the Nasdaq composite was 0.4% lower. All three are still near their all-time highs, but they’ve been shaky recently.

US Stocks: US-based multinational chipmaking company, Advanced Micro Devices (AMD), stock price jumped more than 6% during the pre-market trading session on Wall Street as the chipmaker forecasts data centre-driven sales growth in the next few years.

Builders FirstSource has continued to underperform the broader market over the past year, yet analysts remain optimistic on the stock’s prospects, with price targets suggesting significant upside potential.

The Dow Jones Industrial Average rallied 1.2% to a record, surpassing its prior all-time high set two weeks ago. The Nasdaq composite lagged the market, though, as Nvidia got back to falling amid continued concerns that stocks caught up in the artificial-intelligence frenzy may have become too expensive.

Nvidia stock was rising Wednesday as Foxconn Technology Group said there was strong demand for artificial-intelligence hardware. Nvidia shares were up 1.4% at $195.95 in premarket trading. The stock fell 3% on Tuesday after Japan’s SoftBank Group disclosed that it had sold a $5.