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. 

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. 

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

Willdan Group

Willdan Group (WLDN) - Get Report, together with its subsidiaries, provides professional technical and consulting services to public agencies at various levels of government, public and private utilities, and commercial and industrial firms in the U.S. This stock is trading up 4.4% to $14.94 in Monday's trading session.

Monday's Volume: 93,000
Three-Month Average Volume: 88,355
Volume % Change: 179%

From a technical perspective, WLDN is spiking sharply higher here right above its 50-day moving average of $13.88 with above-average volume. This jump to the upside on Monday has now pushed shares of WLDN into breakout territory, since the stock has taken out some near-term overhead resistance at $14.47. That move is now quickly pushing shares of WLDN within range of triggering another big breakout trade. That trade will trigger if WLDN manages to clear some more key near-term overhead resistance levels at $15 to $15.23 with high volume.

Traders should now look for long-biased trades in WLDN as long as it's trending above its 50-day moving average of $13.88 and then once it sustains a move or close above those breakout levels with volume that hits near or above 88,355 shares. If that breakout triggers soon, then WLDN will set up to re-test or possibly take out its next major overhead resistance levels at $16.55 to $18, or even $19.

Eros International

Eros International (EROS) - Get Report , together with its subsidiaries, co-produces, acquires and distributes Indian language films in various formats worldwide. This stock is trading up 2.5% to $17.06 in Monday's trading session.

Monday's Volume: 341,000
Three-Month Average Volume: 118,179
Volume % Change: 695%

From a technical perspective, EROS is spiking higher here right above some near-term support at $16.21 with strong upside volume flows. This stock recently formed a triple bottom chart pattern, after shares found buying interest at $16.20, $16.09 and $16.21 a share. Following that bottom, shares of EROS have now started to spike higher and it's quickly moving within range of triggering a major breakout trade above some key near-term overhead resistance levels. That trade will hit if EROS manages to take out some key overhead resistance levels at its 200-day moving average of $17.41 to $17.48 and then above its 50-day moving average of $17.88 with high volume.

Traders should now look for long-biased trades in EROS as long as it's trending above those triple bottom support levels and then once it sustains a move or close above those breakout levels with volume that hits near or above 118,179 shares. If that breakout get set off soon, then EROS will set up to re-test or possibly take out its next major overhead resistance levels at $19 to $20, or even $20.50 to $22.

Citi Trends

Citi Trends (CTRN) - Get Report operates as a retailer of urban fashion apparel and accessories. This stock is trading up 5.9% to $27.39 in Monday's trading session.

Monday's Volume: 357,000
Three-Month Average Volume: 117,002
Volume % Change: 525%

From a technical perspective CTRN is ripping sharply higher here right above its 50-day moving average of $25.33 with strong upside volume flows. This spike to the upside on Monday has now pushed shares of CTRN into breakout and new 52-week territory, since the stock has cleared some key near-term overhead resistance levels at $26.47 to $27.05 and over $27.27. Market players should now look for a continuation move to the upside in the short-term if CTRN manages to clear Monday's intraday high of $27.42 with high volume.

Traders should now look for long-biased trades in CTRN as long as it's trending above $26.50 or above $26 and then once it sustains a move or close above Monday's intraday high of $27.42 with volume that registers near or above 117,002 share. If that move gets started soon, then CTRN will set up to tag or take out $30 a share.

Echo Global Logistics

Echo Global Logistics (ECHO) - Get Report provides technology-enabled transportation and supply chain management solutions in the U.S. This stock is trading up 4.9% to $28.99 in Monday's trading session.

Monday's Volume: 265,000
Three-Month Average Volume: 144,937
Volume % Change: 223%

From a technical perspective, ECHO gapped up sharply higher here and briefly broke out above some key near-term overhead resistance levels at $28.78 to $29.55 with strong upside volume flows. Shares of ECHO tagged an intraday high of $29.94, before pulling back to around its current level at $29. Market player should now look for a continuation move to the upside in the short-term if ECHO manages to take out Monday's intraday high of $29.94 and then if it clears its 52-week high of $30.18 with high volume.

Traders should now look for long-biased trades in ECHO as long as it's trending above 28.50 or above $28 and then once it sustains a move or close above $29.94 to $30.18 with volume that registers near or above 144,937 shares. If that move materializes soon, then ECHO will set up to enter new 52-week-high territory above $30.18, which is bullish technical price action. Some possible upside targets off that move are $34 to $35.

This article is commentary by an independent contributor. At the time of publication, the author held no positions in the stocks mentioned.