Pre-Market Gappers

Gapping Up:

DYAX +51.0%, ANDS +22.0%, AVRX +12.6%, SLM +12.3%, VVUS +6.0%, CEGE +5.9%, MRK +5.0%, STEM +4.7%, SIRI +4.2%, SAP +3.8%, NLY +3.3%, XMSR +3.1%, AZN +3.0%, SNY +2.7%...

Gapping Down:

AAPL -1.7%.