Stock futures pointed higher Friday, with blue chips staking out the high end of premarket trade. Dow futures were up 86.5 points and rising. Nasdaq 100 futures were steady, trading 11.7 points above fair market value. S&P 500 futures were up 6.7 points, also steady. The stock market today looks to wrap up a tough week, hinting that the market may just get the correcting shakeout many investors have been hoping for.