MARKET PULSE-Stec, Vanguard, Isis, Keynote Systems, Tenet, Solazyme
June 24 (Reuters) - Some U.S. stocks on the move on Monday:
WALL ST OPENS LOWER ON FED, CHINA WORRIES
U.S. stocks opened sharply lower, extending recent weakness, on concerns the U.S. Federal Reserve's stimulus may be drawing to a close and that a cash crunch in China could further slow growth. The Dow Jones industrial average was down 0.85 percent, the Standard & Poor's 500 Index 1.01 percent and the Nasdaq Composite Index 1.10 percent.
** VANGUARD HEALTH SYSTEMS INC, $28.68, up 67 pct (0931 ET)
** TENET HEALTHCARE CORP, $44.18, up 5.5 pct (0931 ET)
U.S. hospital operator Tenet Healthcare will buy smaller rival Vanguard Health Systems for $4.3 billion including debt to expand into new geographies. Continued...