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.

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

Shutterfly

Shutterfly (SFLY) is engaged in the manufacture and retail of digital personalized products and services in the U.S. This stock closed up 3.2% to $50.60 in Monday's trading session.

Monday's Volume: 1.69 million

Three-Month Average Volume: 954,225

Volume % Change: 125%

From a technical perspective, SFLY jumped sharply higher here right off its 50-day moving average of $47.38 with strong upside volume. This move pushed shares of SFLY into breakout territory, since the stock took out some near-term overhead resistance at $50.16. Shares of SFLY are now quickly moving within range of triggering another near-term breakout trade. That trade will hit if SFLY manages to take out Monday's high of $51.69 to some more near-term overhead resistance levels at $52 to $52.50 with high volume.

Traders should now look for long-biased trades in SFLY as long as it's trending above its 50-day at $47.38 and then once it sustains a move or close above those breakout levels with volume that's near or above 954,225 shares. If that breakout gets underway soon, then SFLY will set up to re-test or possibly take out its next major overhead resistance levels at $55 to $58, or even its 52-week high at $59.93.

Artisan Partners Asset Management

Artisan Partners Asset Management (APAM) provides investment management services in the U.S. and internationally. This stock closed up 3.9% to $63.40 in Monday's trading session.

Monday's Volume: 390,000

Three-Month Average Volume: 184,584

Volume % Change: 108%

From a technical perspective, APAM trended notably higher here right off its 50-day moving average of $62.49 with above-average volume. This stock has been uptrending over the last few weeks, with shares moving higher from its low of $55.42 to its intraday high of $63.91. During that uptrend, shares of APAM have been making mostly higher lows and higher highs, which is bullish technical price action. That move has now pushed shares of APAM within range of triggering a near-term breakout trade. That trade will hit if APAM manages to take out Monday's high of $63.91 to some more near-term overhead resistance at $64.71 with high volume.

Traders should now look for long-biased trades in APAM as long as it's trending above Monday's low of $62.34 or above some more near-term support at $60.81 and then once it sustains a move or close above those breakout levels with volume that's near or above 184,584 shares. If that breakout materializes soon, then APAM will set up to re-test or possibly take out its next major overhead resistance levels at $68 to $69.26. Any high-volume move above those levels will then give APAM a chance to tag its 52-week high at $71.86.

EOG Resources

EOG Resources (EOG), together with its subsidiaries, engages in the exploration, development, production and marketing of crude oil and natural gas. This stock closed up 1.3% to $180.40 in Monday's trading session.

Monday's Volume: 3.52 million

Three-Month Average Volume: 1.87 million

Volume % Change: 93%

From a technical perspective, EOG jumped modestly higher here right above some near-term support at $175 with above-average volume. This stock has been uptrending strong for the last month, with shares moving higher from its low of $161.26 to its recent high of $182.06. During that uptrend, shares of EOG have been making mostly higher lows and higher highs, which is bullish technical price action. This spike higher on Monday is now pushing shares of EOG within range of triggering a near-term breakout trade. That trade will hit if EOG manages to take out Monday's high of $181.62 to some more near-term overhead resistance at $182.06 with high volume.

Traders should now look for long-biased trades in EOG as long as it's trending above Monday's low of $177.03 or above $175 and then once it sustains a move or close above those breakout levels with volume that's near or above 1.87 million shares. If that breakout takes hold soon, then EOG will set up to re-test or possibly take out its 52-week high at $188.09. Any high-volume move above that level will then give EOG a chance to tag $195 to $200.

Columbia Property Trust

Columbia Property Trust (CXP), an equity real estate investment trust, invests in the real estate markets of the U.S. This stock closed up 5.3% at $25.72 in Monday's trading session.

Monday's Volume: 2.09 million

Three-Month Average Volume: 851,005

Volume % Change: 195%

From a technical perspective, CXP gapped sharply higher here into breakout territory above some near-term overhead resistance levels at $25 to $25.35 with above-average volume. This move is quickly pushing shares of CXP within range of triggering another big breakout trade. That trade will hit if CXP manages to take out Monday's high of $25.87 to its all-time high at $26.40 with high volume.

Traders should now look for long-biased trades in CXP as long as it's trending above Monday's low of $24.90 or above its 50-day at $24.18 and then once it sustains a move or close above those breakout levels with volume that's near or above 851,005 shares. If that breakout hits soon, then CXP will set up to enter new all-time-high territory, which is bullish technical price action. Some possible upside targets off that breakout are $30 to $35.

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.