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 Rocket Stocks to Buy for Earnings Season 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 for Big Breakouts With that in mind, let's take a look at several stocks rising on unusual volume today. China HGS Real Estate China HGS Real Estate ( HGSH) engages in real estate development, primarily in the construction and sale of residential apartments, car parks as well as commercial properties. This stock closed up 21.8% to $10.14 in Monday's trading session. Monday's Volume: 294,000
Three-Month Average Volume: 50,944
Volume % Change: 311% >>3 Hot Stocks to Trade (or Not) From a technical perspective, HGSH skyrocketed higher here back above its 50-day moving average at $8.67 with heavy upside volume. This move also pushed shares of HGSH into breakout territory, since the stock took out some near-term overhead resistance levels at $9.91 to $9.37. Shares of HGSH are now quickly moving within range of triggering another big breakout trade. That trade will hit if HGSH manages to take out some near-term overhead resistance levels at $10.18 to $10.41 with high volume. Traders should now look for long-biased trades in HGSH as long as it's trending above $9.37 or above $9 and then once it sustains a move or close above those breakout levels with volume that hits near or above 50,944 shares. If that breakout triggers soon, then HGSH will set up to re-test or possibly take out its next major overhead resistance levels at $11.45 to its 52-week high at $12.94. Any high-volume move above $12.94 will then put $15 into range for shares of HGSH.