WINDERMERE, Fla. ( Stockpickr) -- Professional traders running mutual funds and hedge funds don't just look at a stock's price moves; they also track big changes in volume activity. Often when above-average volume moves into an equity, it precedes a large spike in volatility.>>5 Toxic Stocks to Dump Before 2013 Major moves in volume can signal unusual activity, such as insider buying or selling -- or buying or selling by â¿¿superinvestors.â¿ Unusual volume can also be a major signal that hedge funds and momentum traders are piling into a stock ahead of a catalyst. These types of traders like to get in well before a large spike, so it's always a smart move to monitor unusual volume. That said, remember to combine trend and price action with unusual volume. Put them all together to help you decipher the next big trend for any stock. >>5 Stocks Warren Buffett Loves With that in mind, let's take a look at several stocks rising on unusual volume today. Beytex Energy ( BTE) This company's operations and expertise are currently focused on oil and gas production and development in the Western Canadian Sedimentary Basin and the U.S. This stock is trading up 1.8% at $44.99 in recent trading. Today's Volume: 332,000 Average Volume: 164,552 Volume % Change: 325% From a technical perspective, BTE is trending up here right below both its 50-day at $45.92 and its 200-day at $46.12 with above-average volume. This move is quickly pushing BTE within range of triggering a near-term breakout trade. That trade will hit once BTE clears some near-term overhead resistance at $45.97 and once it takes out its 200-day at $46.12 with high volume. Traders should now look for long-biased trades in BTE as long as it's trending above some near-term support at $44, and then once it sustains a move or close above those breakout levels with volume that hits near or above 164,552 shares. If that breakout hits soon, then BTE will set up to re-test or possibly take out its next major overhead resistance levels at $48.72 to $48.79. Any high-volume move above those levels will then put $51 into focus for shares of BTE.