Mid-day Movers

Here is a partial list of today's high-volume movers:

• High-volume advancers: SSNC, LFB, BEAV, HW, ISRG, NIHD, ACL, GENZ, TTI, BYD

• High-Volume decliners: SSYS, SPC, UHS, ILSE, DRTK, PRX, ASVI, CAJ, BG, KWD
  

Market Comments: The resilient market strikes again. The market dipped into the red for about 2 minutes this morning, before reversing higher. If you've ever been short naked calls, you know the pain associated with this. And I can't help but think that as soon as I cover, Mr. Market will finally pull back.

long BYD, ILSE