Yep, it’s Friday the 13th. Stocks moving big pre-market, up or down include: A – Agilent Technologies, +7.97% TYC – Tyco International L, +6.57% DF – Dean Foods Co, +6.11% CVH – Coventry Health Care, +5.27% GME – Gamestop Corp, +3.74% CA – CA Inc, -6.62% NVDA – Nvidia Corp, -6.24% YHOO – Yahoo! Inc, […]