The S&P 500 was down 0.4% in midday trading Friday.
The Dow Jones Industrial Average was off 0.8%, while the Nasdaq fell 0.4%.
The yield on a 10-year Treasury bond slumped 3.5% to 1.59%.
Oil slipped 0.7% to $50.69.
The price of gold rose 0.3% to $1,573.90.
Activision Blizzard Inc.’s (Nasdaq: ATVI) shares continued their climb, a day after the company reported better-than-expected, fourth-quarter earnings. The gaming software maker’s stock was up 2% to $61.48 for a market cap of $48 billion.
Shares of Edwards Lifesciences Corp. (NYSE: EW) were off 2% to $231.54, with medical device makers trading generally down on Friday. The Irvine heart valve maker had a market cap of $48 billion.