U.S. Markets open in 7 hrs 3 mins

Vanguard Health surges on takeover

Jon "DRJ" Najarian (ask-drj@optionmonster.com)

Rich Premium for Hospital Chain

Vanguard Health Systems agreed to be acquired by Tenet Healthcare for $1.8 billion, or $21 a share. That's a rich premium for the hospital chain, sending VHS up by 66 percent before the bell on my tradeMONSTER platform!

Keynote Going Private

Keynote Systems hasn't seen $20 in more than a year, but that's the price private-equity firm Thoma Bravo has agreed to pay for the tech company. KEYN pops 47 percent on the news.

Western Digital Gobbles up Stec

Stec is poised for a big move today after accepting a $340 million buyout at the hands of Western Digital. The deal values the company at $6.85 a share. That will translate into a major pop for STEC, which closed at just $3.59 on Friday, but hasn't traded yet this morning.

More From optionMONSTER