Stock Quotes in this Article: GENT, JKS, NVDQ, CSTE

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 today.

Novadaq Technologies

Novadaq Technologies (NVDQ) develops, manufactures and markets real-time fluorescence imaging technology products that are designed for use by surgeons in the operating room and other clinical settings. This stock closed up 8% to $14.81 in Wednesday's trading session.

Wednesday's Volume: 688,000

Three-Month Average Volume: 183,678

Volume % Change: 279%

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From a technical perspective, NVDQ ripped higher here back above its 50-day moving average of $13.55 with heavy upside volume. This move pushed shares of NVDQ into breakout territory, since the stock took out some near-term overhead resistance levels at $14 to $14.41. Shares of NVDQ are now quickly moving within range of triggering another big breakout trade. That trade will hit if NVDQ manages to take out its all-time high at $15.07 with high volume.

Traders should now look for long-biased trades in NVDQ as long as it's trending above its 50-day at $13.55 or above more support at Wednesday's low of $13.11 and then once it sustains a move or close above its all-time high at $15.07 with volume that hits near or above 183,678 shares. If that breakout hits soon, then NVDQ will set up to enter new all-time-high territory, which is bullish technical price action. Some possible upside targets off that breakout are $18 to $20.

Gentium

Gentium (GENT) is engaged in the research and development of drugs derived from DNA and DNA molecules. This stock closed up 5.2% to $19.31 in Wednesday's trading session.

Wednesday's Volume: 353,000

Three-Month Average Volume: 79,169

Volume % Change: 265%

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From a technical perspective, GENT ripped higher here right off some near-term support at $18 with strong upside volume. This move is quickly pushing shares of GENT within range of triggering a major breakout trade. That trade will hit if GENT manages to take out its 52-week high at $19.50 with high volume.

Traders should now look for long-biased trades in GENT as long as it's trending above $18 or above more near-term support at $17.20, and then once it sustains a move or close above $19.50 with volume that hits near or above 79,169 shares. If that breakout hits soon, then GENT will set up to enter new 52-week-high territory, which is bullish technical price action. Some possible upside targets off that move are $24 to $25.

JinkoSolar

JinkoSolar (JKS) is a solar power product manufacturer. This stock closed up 5% to $14.54 in Wednesday's trading session.

Wednesday's Volume: 1.47 million

Three-Month Average Volume: 771,384

Volume % Change: 109%

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From a technical perspective, JKS ripped higher here right above some near-term support at $13 with strong upside volume. This stock has been uptrending strong for the last four months and change, with shares moving higher from its low of $3.96 to its recent high of $15.62. During that move, shares of JKS have been consistently making higher lows and higher highs, which is bullish technical price action. That move has now pushed shares of JKS within range of triggering a near-term breakout trade. That trade will hit if JKS can manage to take out its 52-week high at $15.62 with high volume.

Traders should now look for long-biased trades in JKS as long as it's trending above some key support levels at $13 or above $12.69, and then once it sustains a move or close above its 52-week high at $15.62 with volume that hits near or above 771,384 shares. If that breakout triggers soon, then JKS will set up to re-test or possibly take out its next major overhead resistance levels at $20 to $22.

CaesarStone Sdot-Yam

CaesarStone Sdot-Yam (CSTE) manufactures engineered quartz surfaces used in both residential and commercial buildings. This stock closed up 3.8% at $42.69 in Wednesday's trading session.

Wednesday's Volume: 305,000
Three-Month Average Volume: 270,314

Volume % Change: 50%

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From a technical perspective, CSTE bounced sharply higher here right above some near-term support at $40.04 with decent upside volume. This stock has been trending sideways for the last few weeks, with shares moving between $44.70 on the upside and $40.04 on the downside. Prior to this sideways action, shares of CSTE were uptrending strong for the last four months, with the stock exploding higher from its low of $21.60 to its all-time high at $44.70. Shares of CSTE now look ready to trigger a near-term breakout trade above the upper end of its recent sideways trading price action. That breakout will hit if CSTE manages to clear $44 to its all-time high at $44.70 with high volume.

Traders should now look for long-biased trades in CSTE as long as it's trending above $40.04 and then once it sustains a move or close above those breakout levels with volume that's near or above 270,314 shares. If that breakout hits soon, then CSTE will set up to enter new all-time-high territory, which is bullish technical price action. Some possible upside targets off that breakout are $50 to $60.

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.