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 Rocket Stocks to Buy as Stocks Drop 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 Insiders Love Right Now Carriage Services Carriage Services ( CSV) is a provider of death care services and merchandise in the U.S. This stock closed up 4.6% at $20.52 on Wednesday. Wednesday's Volume: 212,000 Average Volume: 102,800 Volume % Change: 150% From a technical perspective, CSV ripped higher here and broke out above some near-term overhead resistance and its 52-week high at $20 with above-average volume. This stock has been uptrending extremely strong for the last six months, with shares moving higher from its low of $9.22 to its intraday high of $20.57. During that move, shares of CSV have been consistently making higher lows and higher highs, which is bullish technical price action. Traders should now look for long-biased trades in CSV as long as it's trending above $20 with strong upside volume flows. I would consider any upside volume day that registers near or above its three-month average action of 102,800 shares as bullish. If CSV can maintain that trend, then this stock will set up to enter new 52-week high territory above $20.57, which is bullish technical price action. Some possible upside targets off that move are $23 to $25.