Zumiez ( ZUMZ) is a mall-based specialty retailer of action sports related apparel, footwear, equipment and accessories operating under the Zumiez brand name. The stock is trading up 19% at $27.99 in recent trading. Today's Volume: 1,250,000 Average Volume: 428,725 Volume % Change: 652% This stock is ripping big today after the company topped quarterly earnings expectations yet again and posted higher-than-expected sales in November. (I featured the stock earlier this week in " 5 Earnings Stocks That Could Squeeze the Bears.") From a technical standpoint, this stock has triggered a major breakout today now that shares have traded above some past overhead resistance at $25 a share on monster volume. Traders should now watch for another big breakout to trigger if ZUMZ can manage to sustain a move and close above some more overhead resistance levels at $29.50 and $31. A high-volume move and close above those levels will set this stock up to re-test its next significant overhead resistance level at $33.13.