DELAFIELD, Wis. ( 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 Stocks Insiders Love Right Now Major moves in volume can signal unusual activity, such as insider buying or selling -- or buying or selling by "superinvestors." 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 Toxic Stocks to Sell Now With that in mind, let's take a look at several stocks rising on unusual volume today. Tower International Tower International ( TOWR) is a manufacturer of engineered structural metal components and assemblies primarily serving automotive OEMs. This stock closed up 4.2% to $21.65 in Wednesday's trading session. Wednesday's Volume: 448,000
Three-Month Average Volume: 129,921
Volume % Change: 301% >>5 Bargain Bin Stocks to Buy in 2013 From a technical perspective, TOWR ripped higher here right above its 50-day moving average of $19.97 with above-average volume. This stock has been uptrending strong for the last six months, with shares moving higher from its low of $9.05 to its recent high of $23.93. During that move, shares of TOWR have been consistently making higher lows and higher highs, which is bullish technical price action. That strong trend has now pushed shares of TOWR within range of triggering a near-term breakout trade. That trade will hit if TOWR manages to take out some resistance at $22.50 to its 52-week high at $23.93 with high volume. Traders should now look for long-biased trades in TOWR as long as it's trending above its 50-day at $19.97 or above more support at $19.10 and then once it sustains a move or close above those breakout levels with volume that hits near or above 129,921 shares. If that breakout triggers soon, then TOWR will set up to enter new 52-week-high territory, which is bullish technical price action. Some possible upside targets off that breakout are $27 to $30.