Bally Technologies ( BYI) is a diversified, worldwide gaming company that designs, manufactures, operates and distributes advanced technology-based gaming devices, systems and server-based solutions. The stock is trading up 2% at $38.29 in recent trading. Today's Volume: 497,000 shares Average Volume: 595,758 shares Volume % Change: 178% This stock is advancing modestly today after JPMorgan upgraded the stock to overweight from neutral. From a technical standpoint, BYI has recently found some buying support near its 200-day moving average of $36.02. This move today now sets the stock up for a big breakout if it can manage to take out some overhead resistance levels on heavy volume. Traders should watch for a sustained high-volume move and close above $39.36. Look for volume that's close to or well above 595,758 shares. If we see that action, look for BYI to re-test its next significantly overhead resistance level at $41.80. Bally is one of the top holdings at Columbia Wanger Asset Management.