As I post, the market is down over 85 points and OMNI is up over 50c. I think you're missing the accretive earnings acquisition, the guidance for increasing earnings, and the high multiple that the market is giving it.
Just because a stock has a 100% gain does not mean that it will not go higher. If you look at the full year's run past, many people using that reasoning got out at 4, 5, and $6.
I'm not pumping or trying to hype, I think it's a solid play for 2006 and 2007. You could luck out and catch a +/-$1 drop but then again you might miss 2 or 3 upward.