MADISON, 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.Major moves in volume can signal unusual activity, such as insider buying or selling -- or buying or selling by "superinvestors." >>5 Stocks Under $10 Set to Soar 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. With that in mind, let's take a look at several stocks rising on unusual volume today. >>5 Stocks Poised for Breakouts Tessera Technologies Tessera Technologies ( TSRA), through its subsidiaries, develops, licenses and delivers miniaturization technologies and products for electronic devices worldwide. This stock is trading up 2.8% at $20.62 in recent trading. Today's Volume: 338,000
Average Volume: 359,186
Volume % Change: 50% >>3 Big Stocks on Traders' Radars From a technical perspective, TSRA is ripping higher here right above some near-term support at $19.16 with decent upside volume. This stock has been uptrending strong for the last four months, with shares soaring higher from its low of $15.44 to its intraday high of $20.69. During that move, shares of TSRA have been consistently making higher lows and higher highs, which is bullish technical price action. Shares of TSRA have now started to move into breakout territory, since the stock has taken out some near-term overhead resistance at $20.44. Traders should now look for long-biased trades in TSRA as long as it's trending above today's low of $19.64 and then once it sustains a move or close above its 52-week high at $20.85 with volume that hits near or above 359,186 shares. If we get that move soon, then TSRA will set up to enter new 52-week high territory, which is bullish technical price action. Some possible upside targets if we get that action are $22 to $25.