MARKET PULSE-Aastrom, Sarepta, Select Comfort, Weibo
April 21 (Reuters) - U.S. stocks were flat on Monday ahead of key earnings releases as investors found few reasons to push indexes sharply higher following a strong rally last week. The Dow Jones industrial average was up 0.13 percent at 16,430.11, the S&P 500 was up 0.17 percent at 1,867.96 and the Nasdaq Composite was up 0.27 percent at 4,106.55.
** HALLIBURTON CO, $62.8, +3.12 pct
The world's No. 2 oilfield services company, reported better-than-expected quarterly results, helped by robust drilling activity in Russia, Saudi Arabia and Angola.
** SAREPTA THERAPEUTICS INC, $35.69, +46.27 pct
** PROSENSA HOLDING NV, $5.35, +5.52 pct
Sarepta said it would start new trials to revive the chance of approval for its experimental muscle disorder drug after the U.S. Food and Drug Administration advised the company to submit new safety and efficacy data. Continued...