(CNBC) — U.S. stocks mostly climbed on Monday, with the Nasdaq Composite rebounding from a more than 1 percent drop, as investors turned to large-cap companies while tracking developments in Ukraine, increased deal activity and an ongoing sell-off in social media and other new technology companies.
"The bounce back is really just big-cap leading the way. This is just a big-cap short-covering rally," said Peter Boockvar, chief market analyst at the Lindsey Group, who noted the late-session rebound as the the Dow and S&P 500 hit or breached their 50-day moving averages.
"Everybody is staring at the same screens, the same levels and trading it the same way," Boockvar added.