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.


Penumbra

  • Monday's Volume: 454,000
  • Three-Month Average Volume: 133,443
  • Volume % Change: 281%

Penumbra  (PEN)  designs, develops, manufactures and markets medical devices in U.S., Japan and internationally. This stock traded up 8.4% to $46.33 in Monday's trading session.

From a technical perspective, Penumbra spiked sharply higher on Monday right above some near-term support at $41.35 a share with strong upside volume flows. This high-volume spike pushed this stock back above its 20-day moving average of $45.93 a share and briefly above its 50-day moving average of $47.21 a share. Shares of Penumbra are now starting to trend within range of triggering a big breakout trade above some key near-term overhead resistance levels. That trade will trigger if this stock manages to take out some key overhead resistance levels at Monday's intraday high of $47.78 a share and then above $49 a share with high volume.

Traders should now look for long-biased trades in Penumbra as long as it's trending above some near-term support levels at $44 or $43 a share and then once it sustains a move or close above those breakout levels with volume that hits near or above 133,443 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 $51.78 to around $54 a share.

Ameris Bancorp

  • Monday's Volume: 610,000
  • Three-Month Average Volume: 278,289
  • Volume % Change: 137%


Ameris Bancorp
  (ABCB)  operates as the bank holding company for Ameris Bank that provides banking services to retail and commercial customers in Georgia, Alabama, Florida and South Carolina. This stock traded up 2% to $29.01 in Monday's trading session.

From a technical perspective, Ameris Bancorp trended notably higher on Monday right off its 50-day moving average $28.27 a share and back above its 200-day moving average of $28.76 a share with strong upside volume flows. This high-volume jump to the upside also pushed this stock into breakout territory, since shares of Ameris Bancorp closed above some near-term overhead resistance at $28.95 a share. Market players should now look for a continuation move to the upside in the short-term if this stock can manage to take out Monday's intraday high of $29.28 to some more near-term resistance at around $30 a share with high volume.

Traders should now look for long-biased trades in Ameris Bancorp as long as it's trending above its 50-day moving average of $28.27 a share or above its 20-day moving average of $27.26 a share and then once it sustains a move or close above $29.28 to around $30 a share with volume that registers near or above 278,289 shares. If that move gets started soon, then this stock will set up to re-test or possibly take out its next major overhead resistance levels at $32 to $33, or even $34 to $35 a share.

BioSpecifics Technologies

  • Monday's Volume: 129,000
  • Three-Month Average Volume: 58,331
  • Volume % Change: 101%

BioSpecifics Technologies  (BSTC) , a biopharmaceutical company, engages in the development of an injectable collagenase clostridium histolyticum for multiple indications in the U.S. his stock traded up 7.6% to $38.47 in Monday's trading session.

From a technical perspective, BioSpecifics Technologies ripped sharply higher on Monday back above its 20-day moving average of $37.08 a share and its 50-day moving average of $37.28 a share with above-average volume. This high-volume rip to the upside is now quickly pushing shares of BioSpecifics Technologies within range of triggering a big breakout trade above some key overhead resistance levels. That breakout will hit if this stock manages to take out Monday's intraday high of $38.76 a share and then once it clears more key resistance at $40.46 a share with high volume.

Traders should now look for long-biased trades in BioSpecifics Technologies as long as it's trending above Monday's intraday low of $35.80 a share and then once it sustains a move or close above those breakout levels with volume that hits near or above 58,331 shares. If that breakout kicks off soon, then this stock will set up to re-test or possibly take out its next major overhead resistance levels at $44 to $45, or even $47.52 to its 200-day moving average of $48.09 a share.

TripAdvisor

  • Monday's Volume: 5.46 million
  • Three-Month Average Volume: 2.21 million
  • Volume % Change: 125%

TripAdvisor  (TRIP)  operates as an online travel company. This stock traded up 4.4% to $66.54 in Monday's trading session.

From a technical perspective, TripAdvisor ripped sharply higher on Monday right off its 20-day moving average of $63.45 a share and briefly above its 50-day moving average of $66.90 a share with strong upside volume flows. This high-volume spike to the upside also briefly pushed shares of TripAdvisor into breakout territory, after the stock tested some key near-term overhead resistance levels at $66.62 to $67 a share. Market players should now look for a continuation move to the upside in the short-term if shares of TripAdvisor manage to clear Monday's intraday high of $68.28 a share with high volume.

Traders should now look for long-biased trades in TripAdvisor as long as it's trending above its 20-day moving average of $63.45 a share and then once it sustains a move or close above Monday's intraday high of $68.28 a share with volume that registers near or above 2.21 million shares. If that move gets underway soon, then this stock will set up to re-test or possibly take out its next major overhead resistance levels at $72.50 to $73, or even its 200-day moving average of $75.72 a share.

Grupo Aeroportuario Del Pacifico

  • Monday's Volume: 153,000
  • Three-Month Average Volume: 68,453
  • Volume % Change: 128%

Grupo Aeroportuario Del Pacifico  (PAC)  operates airports in Mexico's Pacific region. This stock traded up 1% to $83.32 in Monday's trading session.

From a technical perspective, Grupo Aeroportuario Del Pacifico trended modestly higher on Monday right off its 200-day moving average of $82.09 a share with strong upside volume flows. This stock recently formed a major bottoming chart pattern, after shares found some buying interest multiple times over the last two months around $77 a share. Following that potential bottom, shares of Grupo Aeroportuario Del Pacifico have now started to trend back above both its 20-day and 50-day moving averages. That trend is now quickly pushing this stock within range of triggering a near-term breakout trade. That trade will trigger if this stock manages to take out some key near-term overhead resistance levels at $84 to $84.35 a share with high volume.

Traders should now look for long-biased trades in Grupo Aeroportuario Del Pacifico as long as it's trending above its 200-day moving average of $82.09 a share or above its 50-day moving average of $80.82 a share and then once it sustains a move or close above those breakout levels with volume that hits near or above 68,453 shares. If that breakout develops soon, then this stock will set up to re-test or possibly take out its next major overhead resistance levels at $87 to $90, or even $92 to $93 a share.

J2 Global

  • Monday's Volume: 1.81 million
  • Three-Month Average Volume: 789,808
  • Volume % Change: 116%

J2 Global  (JCOM)  engages in the provision of Internet services worldwide. This stock traded up 1.1% to $58.81 in Monday's trading session.

From a technical perspective, J2 Global trended modestly higher on Monday with strong upside volume flows. This stock recently gapped-down sharply from over $70 a share to its new 52-week low of $55.43 a share with heavy downside volume flows. Following that move, shares of J2 Global have now started to rebound off that $55.43 low with strong upside volume flows. That rebound is now quickly pushing this stock within range of triggering a near-term breakout trade above some key overhead resistance levels. That breakout will hit if this stock manages to take out Monday's intraday high of $59.79 to some more near-term resistance at $60.23 a share with high volume.

Traders should now look for long-biased trades in J2 Global as long as it's trending above some near-term support at $57 or above its new 52-week low of $55.43 a share and then once it sustains a move or close above those breakout levels with volume that hits near or above 789,808 shares. If that breakout hits soon, then this stock will set up to re-fill some of its previous gap-down-day zone that started just above $70 a share.

Raven Industries

  • Monday's Volume: 413,000
  • Three-Month Average Volume: 211,600
  • Volume % Change: 104%

Raven Industries  (RAVN) , together with its subsidiaries, provides various products to customers in the industrial, agricultural, energy, construction and military/aerospace markets worldwide. This stock traded up 3.7% to $14.00 in Monday's trading session.

From a technical perspective, Raven Industries trended notably higher on Monday right above its new 52-week low of $12.88 a share with above-average volume. This stock recently gapped-down sharply lower from close to $17 a share to under $13.50 a share with monster downside volume flows. Following that move, shares of Raven Industries have now started rebound off that $12.88 low, and it's now quickly trending within range of triggering a big breakout trade. That trade will hit if this stock manages to take out Monday's intraday high of $14.13 a share high volume.

Traders should now look for long-biased trades in Raven Industries as long as it's trending above Monday's intraday low of $13.12 a share or above its new 52-week low of $12.88 a share and then once it sustains a move or close above Monday's intraday high of $14.13 a share with volume that hits near or above 211,600 shares. If that breakout fires off soon, then this stock will set up to re-test or possibly take out its next major overhead resistance levels at its 50-day moving average of $15.04 a share to its 20-day moving average of $15.28, or even $16.70 a share.

Disclosure: 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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