Premarket gainers: KERX +18%. PLXT +10%. VLO +8%. OPK +7%. HES +7%. RPRX +6%. AKS +6%. Losers:...

|By:, SA News Editor
Premarket gainers: KERX +18%. PLXT +10%. VLO +8%. OPK +7%. HES +7%. RPRX +6%. AKS +6%.
Losers: OXF -24%. ANAC -23%. VMW -19%. LXK -6%. RBS -6%. STX -6%. EDU -5%.