Wall Street kicked off the new week on a flat note after the worst weekly slump for tech stocks since April, as investors remained cautious ahead of a flood of economic data following the end of the government shutdown and NVIDIA Corp. (NASDAQ:NVDA)'s highly anticipated earnings report on Wednesday.

• NVDA is under selling pressure. Track the action here.

By midday in New York, major large-cap indices were little changed, while the small-cap Russell 2000 slipped 0.4%. Utilities led sector gains, while energy lagged.

Among standout movers, Alphabet Inc. (NASDAQ:GOOGL) jumped nearly 5% to a fresh record high of $293 after Berkshire Hathaway disclosed a new 17.85 million-share stake valued at roughly $4.93 billion as of Sept. 30.

On the downside, Dell Technologies Inc. (NYSE:DELL) slid more than 6% after Morgan Stanley cut ...