Major U.S. stock indexes opened lower and were mostly in the red during a relatively quiet Monday session, as investors took a wait-and-see approach to stocks ahead of this week’s earnings reports from a fifth of the S&P 500 companies.

The Nasdaq Composite peaked above the breakeven line early, then rebounded late from its intraday low, crossing positive territory before the closing bell and ending the day 0.3% higher at 18,540, led by Nvidia (NVDA).