WINDERMERE, Fla. ( 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 Insiders Are Scooping Up 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 Setting Up to Break Out Five Below Five Below ( FIVE) is a rapidly growing specialty value retailer offering a broad range of trend-right, high-quality merchandise targeted at the aspirational teen and pre-teen customer. This stock closed up 4% at $37.34 on Wednesday. Wednesday's Volume: 6.88 million Average Volume: 290,049 Volume % Change: 2101% Shares of FIVE trended up after the company boosted its secondary offering size to 11.3 million shares, priced at $35.65 per share. From a technical perspective, FIVE is trending higher here and breaking out above some near-term overhead resistance at $36.36 with monster volume. This move is starting to push shares of FIVE within range of triggering another near-term breakout trade. That trade will hit if FIVE manages to take out some more near-term overhead resistance at $37.85 with high volume. Traders should now look for long-biased trades in FIVE as long as it's trending above today's low of $36, and then once it sustains a move or close above $37.85 with volume that hits near or above 290,049 shares. If that breakout triggers soon, then FIVE will set up to re-test or possibly take out its 52-week high of $40. Any high-volume move above $40 will then push FIVE into new 52-week-high territory and all-time territory, which is bullish technical price action. Some possible upside targets off that breakout are $42 to $45 in the near future.