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.>>3 Big Stocks on Traders' Radars 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 Poised to Break Out With that in mind, let's take a look at several stocks rising on unusual volume today. Linn Energy Linn Energy ( LINE) acquires, develops various oil and gas properties in the U.S. This stock closed up 11.2% to $30.82 in Friday's trading session. Friday's Volume: 10.40 million
Three-Month Average Volume: 2.15 million
Volume % Change: 450% From a technical perspective, LINE skyrocketed higher here and broke out above some near-term overhead resistance at $29.79 with heavy upside volume. This move also pushed shares of LINE back above its 200-day moving average of $30.77. Market players should now look for a continuation move in the short-term if LINE can take out Friday's intraday high. Traders should now look for long-biased trades in LINE as long as it's trending above Friday's low of $28.46 and then once it sustains a move or close above Friday's high of $31.53 with volume that hits near or above 2.15 million shares. If we get that move soon, then LINE will set up to re-test or possibly take out its next major overhead resistance levels at $33.50 to $35, or even $37. Orient-Express Hotels Orient-Express Hotels ( OEH) is a hotel and travel company focused on the luxury end of the leisure market with exposure to both mature and emerging national economies. This stock closed up 7.5% to $14.31 in Friday's trading session.