Stocks closed mixed on Wall Street Monday after a day of choppy trading.

Investors were balancing unease about the spread of a more contagious coronavirus variant against another round of encouraging company earnings.

The S&P 500 lost 0.2% It was slightly higher for much of the day before turning lower in the last half-hour of trading. Roughly 150 members of the index will report their results this week, and the July jobs report comes out on Friday.

Square rose 10.2% after saying it would acquire the "buy now, pay later" company Afterpay for $29 billion.

The yield on the 10-year Treasury fell to 1.17%.