The S&P 500 was down 0.6% to 2,953.91 at midday trading.
The Dow Jones Industrial Average fell 0.3% to 24,502.51.
Nasdaq slid 0.7% to 9,310.51.
Crude oil rose 0.6% to $33.68 a barrel.
The price of gold fell 1.7% to $1,722 per ounce.
The yield on a 10-year bond was down 1.2% to 0.71%.
TRI Pointe Group Inc. (NYSE: TPH) rose 4.5% to $13.40 a share with a $1.77 billion market cap. The Irvine-headquartered home builder was trading at less than a quarter of its average volume—600,000 shares compared to 2.7 million. The shares have doubled since mid-March when the stock dropped below $7.
Boot Barn Holdings Inc. (NYSE:BOOT) fell 4.7% at midday to $21.40 a share with a $614 million market cap. The Irvine-based retailer of boots and other apparel yesterday reported fourth quarter revenue and earnings that missed analyst estimates.
TTM Technologies Inc. (Nasdaq: TTMI) descended 3.4% to $11.37 a share with a $1.2 billion market cap. Shares of the Santa Ana-based manufacturer of printed circuit boards have risen almost 30% since March 23.