The Dow retreated from yesterday's record close by dropping 64 points to 15,681 during the midday despite Twitter's spectacular debut. Nasdaq tumbled 48 points 3883.
On the upside
Shares of Twitter (NYSE: TWTR) surged on its first trading day.
Tempur Sealy International (NYSE: TPX) reversed year ago losses to post a better than expected profit for the third quarter as revenue more than doubled.
DexCom (Nasdaq: DXCM) narrowed third quarter losses more than expected as revenue doubled.
On the downside
Investors locked in profits on Oxygen Biotherapeutics (Nasdaq: OXBT).
Wendy's (Nasdaq: WEN) narrowed third quarter losses more than expected but the company warned of lower fourth quarter earnings.
BioScrip (Nasdaq: BIOS) widened third quarter losses more than expected prompting the company to lower its full year revenue guidance.
In the broad market, declining issues outpaced advancers by a margin of nearly 7 to 3 on both the NYSE and on Nasdaq. The broader S&P 500 fell 11 points to 1758.