Stocks were hit with selling pressure in early trading, firmed at midday and then rallied in the afternoon. Small-caps and micro-caps led the way with the Russell 2000 iShares gaining 1% and the Russell MicroCap iShares surging 1.43%. Six of the nine sector SPDRs closed lower, but eight of the nine small-cap sector ETFs closed higher. Energy was the only small-cap sector to close lower. Here is a…