The S&P; 500 rose 0.1% to 4,580.45 in midday trading.
The Dow Jones Industrial Average fell 0.2% to 35,672.89.
The Nasdaq increased 0.8% to 15,361.82.
The yield on a 10-year Treasury bond fell 5.1% to 1.536%The price of gold increased 0.3% to $1,798 an ounce.The price for a barrel of oil fell 2.2% to $82.76.
Tarsus Pharmaceuticals Inc. (Nasdaq: TARS) dropped 5% to $27.55 and a $567 million market cap. Shares of the Irvine-based maker of ophthalmic drugs are still up about 30% since Oct. 6.
Foothill Ranch-based loanDepot Inc. (NYSE: LDI) fell 3.8% to $6.41 and a $2 billion market cap. Shares of the provider of mortgages have fallen by more than half since its IPO in March at $14 a share.