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 Stocks Set to Soar on Bullish Earnings With that in mind, let's take a look at several stocks rising on unusual volume today. Under Armour Under Armour ( UA) is engaged in designing, development, marketing and distribution of technologically advanced, branded performance products for men, women and youth. This stock closed up 1.6% to $84.47 in Wednesday's trading session. Wednesday's Volume: 1.94 million
Three-Month Average Volume: 1.23 million
Volume % Change: 66% From a technical perspective, UA spiked modestly higher here and broke out above some near-term overhead resistance at $83.83 with above-average volume. This move is quickly pushing shares of UA within range of triggering another big breakout trade. That trade will hit if UA manages to take out Wednesday's high of $85.65 to its 52-week high at $86.02 with high volume. Traders should now look for long-biased trades in UA as long as it's trending above Wednesday's low of $83.24 or above its 50-day at $80.97 and then once it sustains a move or close above those breakout levels with volume that hits near or above 1.23 million shares. If that breakout hits soon, then UA will set up to enter new 52-week-high territory, which is bullish technical price action. Some possible upside targets off that breakout are $93 to $95. AbbVie AbbVie ( ABBV), a research-based biopharmaceutical company, engages in the discovery, development, manufacture and sale of pharmaceutical products worldwide. This stock closed up 1% at $52.67 in Wednesday's trading session.