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.

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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.

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With that in mind, let's take a look at several stocks rising on unusual volume recently.

58.com

58.com (WUBA) operates online marketplace for local merchants and consumers in the People's Republic of China. This stock closed up 8.2% at $47.03 in Wednesday's trading session.

Wednesday's Volume: 1.97 million

Three-Month Average Volume: 1.12 million

Volume % Change: 63%

From a technical perspective, WUBA spiked sharply higher here right off its 50-day moving average of $43.03 with above-average volume. This stock recently formed a double bottom chart pattern at $36.86 to $36.16. Following that bottom, shares of WUBA have started to spike sharply higher back above its 50-day and into breakout territory above some near-term overhead resistance at $47. Market players should now look for a continuation move higher in the short-term if WUBA can manage to take out Wednesday's high of $48 with strong volume.

Traders should now look for long-biased trades in WUBA as long as it's trending above $45 or above its 50-day at $43.03 and then once it sustains a move or close above $48 with volume that this near or above 1.12 million shares. If that breakout starts soon, then WUBA will set up to re-test or possibly take out its next major overhead resistance levels at $50 to $52.50.

ServiceNow

ServiceNow (NOW) provides cloud-based services to automate enterprise IT operations primarily in North America, Europe, the Middle East, Africa, the Asia Pacific and internationally. This stock closed up 7.9% at $54.88 in Wednesday's trading session.

Wednesday's Volume: 4.49 million

Three-Month Average Volume: 2.01 million

Volume % Change: 153%

From a technical perspective, NOW ripped sharply higher here back above its 200-day moving average of $53.77 with strong upside volume. This stock has been downtrending badly for the last month, with shares moving lower from its high of $71.80 to its recent low of $49.21. During that move, shares of NOW have been making mostly lower highs and lower lows, which is bearish technical price action. That said, shares of NOW are now starting to spike higher off oversold levels and the stock is quickly approaching a near-term breakout trade. That trade will hit if NOW manages to take out Wednesday's high of $55 to some more near-term resistance at $56 with high volume.

Traders should now look for long-biased trades in NOW as long as it's trending above $52 and then once it sustains a move or close above those breakout levels with volume that hits near or above 2.01 million shares. If that breakout triggers soon, then NOW will set up to re-test or possibly take out its next major overhead resistance levels at $62 to its 50-day moving average of $64.21.

Carlyle Group

Carlyle Group (CG) is an investment firm specializing in direct and fund of fund investments. This stock closed up 3.3% to $34.48 in Wednesday's trading session.

Wednesday's Volume: 1.33 million

Three-Month Average Volume: 666,063

Volume % Change: 139%

From a technical perspective, CG trended higher here back above its 50-day moving average of $34.05 with above-average volume. This move is starting to push shares of CG within range of triggering a near-term breakout trade. That trade will hit if CG manages to take out Wednesday's high of $34.95 to some more near-term overhead resistance at $35.99 with high volume.

Traders should now look for long-biased trades in CG as long as it's trending above Wednesday's low of $33.62 or above more support at $32.51 and then once it sustains a move or close above those breakout levels with volume that hits near or above 666,063 shares. If that breakout gets underway soon, then CG will set up to re-test or possibly take out its next major overhead resistance levels at $37.92 to its 52-week high at $39.38.

To see more stocks rising on unusual volume, check out the Stocks Rising on Unusual Volume portfolio on Stockpickr.

-- Written by Roberto Pedone in Delafield, Wis.


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At the time of publication, author had no positions in stocks mentioned.

Roberto Pedone, based out of Delafield, Wis., is an independent trader who focuses on technical analysis for small- and large-cap stocks, options, futures, commodities and currencies. Roberto studied international business at the Milwaukee School of Engineering, and he spent a year overseas studying business in Lubeck, Germany. His work has appeared on financial outlets including

CNBC.com and Forbes.com. You can follow Pedone on Twitter at www.twitter.com/zerosum24 or @zerosum24.