7 Stocks Making Big Moves With Unusual Volume

Professional traders running mutual funds and hedge funds don't just look at a stock's price moves, they 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."

Stocks with unusual volume are something that I tweet about on a daily basis. These are also the exact type of stocks that I love to trade and alert in real time.

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.

GenMark Diagnostics

GenMark Diagnostics  (GNMK) , a molecular diagnostics company, develops, manufactures, commercializes, sells, and supports instruments and molecular tests based on its proprietary eSensor detection technology. This stock closed up 11.4% to $13 in Tuesday's trading session.

  • Tuesday's Volume: 1.01 million
  • Three-Month Average Volume: 288,651
  • Volume % Change: 256%

From a technical perspective, GenMark Diagnostics ripped sharply higher on Tuesday right off its 50-day moving average of $11.83 a share and back above its 20-day moving average of $12.06 a share with strong upside volume flows. This high-volume rip to the upside also managed to push shares of GenMark Diagnostics into breakout territory, after the stock closed above some key near-term overhead resistance levels at $12.67 to $12.91 a share. Market players should now look for a continuation move to the upside in the short-term if this stock manages to take out Tuesday's intraday high of $13.42 a share with strong volume.

Traders should now look for long-biased trades in GenMark Diagnostics as long as it's trending above its 20-day moving average of $12.06 a share or above its 50-day moving average of $11.83 a share and then once it sustains a move or close above Tuesday's intraday high of $13.42 a share with volume that hits near or above 288,651 shares. If that move gets underway soon, then this stock will set up to enter new 52-week-high territory, which is bullish technical price action. Some possible upside targets off that move are $14.11 to $14.40, or even $16 to $17 a share.

Hill-Rom Holdings

Hill-Rom Holdings  (HRC)  operates as a medical technology company worldwide. This stock closed up 0.88% to $58.63 in Tuesday's trading session.

  • Tuesday's Volume: 1.58 million
  • Three-Month Average Volume: 676,208
  • Volume % Change: 159%

From a technical perspective, Hill-Rom Holdings spiked notably higher on Tuesday back above both its 50-day moving average of $55.53 a share and its 20-day moving average of $56.49 a share with strong upside volume flows. This stock has been uptrending over the last month and change, with shares moving higher off its low of $52.42 a share to its intraday high on Tuesday of $58.97 a share.

During that uptrend, shares of Hill-Rom Holdings have been making mostly higher lows and higher highs, which is bullish technical price action. That uptrend has now pushed this stock within range of triggering a near-term breakout trade. That trade will trigger if this stock manages to take out Tuesday's intraday high of $58.97 a share and then once it clears more overhead resistance levels at $59.90 to $60.50 a share with high volume.

Traders should now look for long-biased trades in Hill-Rom Holdings as long as it's trending above its 20-day moving average of $56.49 a share or above its 50-day moving average of $55.53 a share and then once it sustains a move or close above those breakout levels with volume that hits near or above 676,208 shares. If that breakout hits soon, then this stock will set up to re-test or possibly take out its next major overhead resistance levels at $62.93 to its 52-week high of $63.12 a share, or even $65 to $70 a share.

GTT Communications

GTT Communications  (GTT)  provides cloud networking services to multinational enterprises, carriers, and government customers. This stock closed up 5.6% to $29.15 in Tuesday's trading session.

  • Tuesday's Volume: 521,000
  • Three-Month Average Volume: 142,987
  • Volume % Change: 270%

From a technical perspective, GTT Communications ripped sharply higher on Tuesday right off its 20-day moving average of $27.95 a share with strong upside volume flows. This stock has been uptrending over the last two months and change, with shares moving higher off its low of $20.80 a share to its recent high of $29.75 a share. During that uptrend, shares of GTT Communications have been making mostly higher lows and higher highs, which is bullish technical price action.

This spike to the upside on Tuesday is now quickly pushing shares of GTT Communications within range of triggering a big breakout trade. That trade will trigger if this stock manages to take out Tuesday's intraday high of $29.45 a share and then once it clears its 52-week high of $29.75 a share with high volume.

Traders should now look for long-biased trades in GTT Communications as long as it's trending above some near-term support at $28.50 a share or above its 20-day moving average of $27.95 a share and then once it sustains a move or close above those breakout levels with volume that registers near or above 142,987 shares. If that breakout develops soon, then this stock will set up to enter new 52-week-high territory, which is bullish technical price action. Some possible upside targets off that breakout are $35 to $40 a share.

Sarepta Therapeutics

Sarepta Therapeutics  (SRPT) , a biopharmaceutical company, focuses on the discovery and development of RNA-based therapeutics for the treatment of rare, infectious, and other diseases. This stock closed up 21.2% to $37.89 in Tuesday's trading session.

  • Tuesday's Volume: 14.75 million
  • Three-Month Average Volume: 2.61 million
  • Volume % Change: 533%

From a technical perspective, Sarepta Therapeutics exploded sharply higher on Tuesday back above both its 200-day moving average of $29.45 a share and its 50-day moving average of $34.36 a share with monster upside volume flows. This high-volume rip to the upside also managed to push shares of Sarepta Therapeutics into breakout territory, after the stock closed above some near-term overhead resistance levels at $31.56 to $35.03 a share.

This stock is now quickly moving within range of triggering another key breakout trade above some near-term overhead resistance levels. That trade will trigger if this stock manages to take out Tuesday's intraday high of $39.36 a share and then once it trends above more key resistance at around $40 a share with high volume.

Traders should now look for long-biased trades in Sarepta Therapeutics as long as it's trending above its previous breakout level of $35.03 a share or above its 50-day moving average of $34.36 a share and then once it sustains a move or close above those breakout levels with volume that hits near or above 2.61 million shares. If that breakout materializes soon, then this stock will set up to re-test or possibly take out its next major overhead resistance levels at $45.20 to $50, or even $52.50 to $55 a share.

Heritage Financial

Heritage Financial  (HFWA)  operates as the bank holding company for Heritage Bank that provides various financial services to small and medium size businesses and general public. This stock closed up 4.4% to $26.10 in Tuesday's trading session.

  • Tuesday's Volume: 412,000
  • Three-Month Average Volume: 107,668
  • Volume % Change: 252%

From a technical perspective, Heritage Financial ripped sharply higher on Tuesday right above some near-term support at $24.45 a share and back above its 20-day moving average of $25.59 a share with heavy upside volume flows. This high-volume spike to the upside is now quickly pushing shares of Heritage Financial within range of triggering a big breakout trade above some key overhead resistance levels. That trade will trigger if this stock manages to take out Tuesday's intraday high of $26.25 a share and then once it clears its 52-week high of $26.48 a share with high volume.

Traders should now look for long-biased trades in Heritage Financial as long as it's trending above its 20-day moving average of $25.59 a share or above some near-term support at $24.45 a share and then once it sustains a move or close above those breakout levels with volume that registers near or above 107,668 shares. If that breakout takes hold soon, then this stock will set up to enter new 52-week-high territory, which is bullish technical price action. Some possible upside targets off that breakout are $30 to $35 a share.

Zynerba Pharmaceuticals

Zynerba Pharmaceuticals  (ZYNE) , a specialty pharmaceutical company, focuses on developing and commercializing proprietary synthetic cannabinoid therapeutics formulated for transdermal delivery. This stock closed up 9.5% to $19.90 in Tuesday's trading session.

  • Tuesday's Volume: 473,000
  • Three-Month Average Volume: 216,721
  • Volume % Change: 163%

From a technical perspective, Zynerba Pharmaceuticals spiked sharply higher on Tuesday right above some near-term support at $17.69 a share with bullish upside volume flows. This stock has been uptrending strong over the last three months and change, with shares moving higher off its low of $10.56 a share to its intraday high on Tuesday of $20.36 a share.

During that uptrend, shares of Zynerba Pharmaceuticals have been making mostly higher lows and higher highs, which is bullish technical price action. This spike to the upside on Tuesday is now quickly pushing this stock within range of triggering a major breakout trade. That trade will trigger if this stock manages to take out Tuesday's intraday high of $20.36 a share and then once it clears its 52-week high of $21.56 a share with high volume.

Traders should now look for long-biased trades in Zynerba Pharmaceuticals as long as it's trending above Tuesday's intraday low of $18.29 a share or above more near-term support at $17.69 a share and then once it sustains a move or close above those breakout levels with volume that hits near or above 216,721 shares. If that breakout develops soon, then this stock will set up to enter new 52-week-high territory, which is bullish technical price action. Some possible upside targets off that move are $25 to $30 a share.

Acuity Brands

Acuity Brands  (AYI)  designs, produces, and distributes various lighting solutions and services for commercial, institutional, industrial, infrastructure, and residential applications in North America and internationally. This stock closed up 3.1% to $208.94 in Tuesday's trading session.

  • Tuesday's Volume: 1.69 million
  • Three-Month Average Volume: 585,081
  • Volume % Change: 221%

From a technical perspective, Acuity Brands spiked notably higher on Tuesday with strong upside volume flows. This stock recently gapped-down sharply lower from around $240 a share to $193.06 a share with heavy downside volume flows. Following that move, shares of Acuity Brands have now started to rebound off that $193.06 low and it's quickly trending within range of triggering a big breakout trade above some key overhead resistance levels. That trade will trigger if this stock manages to take out Tuesday's intraday high of $210.56 a share and then once it clears its gap-down-day high of $212.69 a share with high volume.

Traders should now look for long-biased trades in Acuity Brands as long as it's trending above Tuesday's intraday low of $206.03 a share and then once it sustains a move or close above those breakout levels with volume that hits near or above 585,081 shares. If that breakout develops soon, then this stock will set up to re-fill some of its previous gap-down-day zone that started near $240 a share. If this stock gets into that gap with strong volume then some possible upside targets are $217 to $228 a share.

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

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