Stock Quotes in this Article: ALNY, CSTR, DLB, INFA, N, ORLY, GMED, JE

WINDERMERE, Fla. (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.

Coinstar (CSTR)

This is a provider of automated retail solutions offering convenient products and services that benefit consumers and drive incremental retail traffic and revenue for retailers. This stock is trading up 3.4% at $52.54 in recent trading.

Today's Volume: 1.96 million

Average Volume: 1.15 million

Volume % Change: 248%

Shares of CSTR are moving higher today after Northland upgraded the stock to outperform from market perform, saying that RedBox rental trends are improving significantly from summer lows. The firm set a price target of $62 per share.

From a technical perspective, CSTR is gapping higher here right off some near-term support at $50 with above-average volume. This move is quickly pushing CSTR within range of triggering a major breakout trade. That trade will hit once CSTR manages to take out some key overhead resistance levels at $53.75 to its 200-day moving average at $55.73 with high volume. At last check, CSTR has hit an intraday high of $54.16 and volume is well above its three-month average action of 1.15 million shares.

Traders should now look for long-biased trades in CSTR as long as it's trending above $50, and then once it sustains a move or close above those breakout levels with volume that hits near or above 1.15 million shares. If that breakout triggers soon, then CSTR will set up to re-fill some of its previous gap down zone from July that started above $60.

Dolby Laboratories (DLB)

This company develops and delivers innovative technologies, products and services at each stage of the entertainment industry, including content creation, content distribution and content playback. This stock is trading up 4% at $35.56 in recent trading.

Today's Volume: 1.50 million

Average Volume: 744,837

Volume % Change: 256%

Shares of DLB are trending higher today after the company announced a one-time special dividend of $4 a share. The dividend will be paid on Dec.27 to shareholders of record as of the close of business on Dec. 21.

From a technical perspective, DLB is gapping up sharply here right below its 200-day moving average of $36.79 with heavy upside volume. At last check, DLB has hit an intraday high of $37.01 and volume is well above its three-month average action of 744,837 shares.

Traders should now look for long-biased trades in DLB as long as it's trending above its 200-day at $36.79 with strong upside volume flows. I would consider any upside volume day that registers near or above its three-month average action of 744,837 shares as bullish. If DLB can maintain that trend, then this stock will set up to re-test or possibly take out its next significant overhead resistance level at $39.18.

Globus Medical (GMED)

This is a medical device company focused exclusively on the design, development and commercialization of products that promote healing in patients with spine disorders. This stock is trading up 3.5% at $11.98 in recent trading.

Today's Volume: 419,000

Average Volume: 255,540

Volume % Change: 210%

From a technical perspective, GMED is bouncing strongly to the upside here right above some near-term support at $11.12 with above-average volume. This stock has been downtrending badly for the least two months, with shares dropping from its high of $19.93 to its recent low of $11.12. During that move, shares of GMED were mostly making lower highs and lower lows, which is bearish technical price action. That said, shares of GMED are starting to rebound off that recent low of $11.12 and off of oversold territory. The current relative strength index (RSI) reading for GMED shows an oversold level at 33.45.

Traders should now look for long-biased trades in GMED as long as it's trending above $11.12, and then once it sustains a move or close above some near-term overhead resistance at $12.50 with volume that hits near or above 255,540 shares. If that breakout hits soon, then GMED will set up for a powerful bounce off oversold levels. Some potential upside targets are $13.50 to $15.

Netsuite (N)

This company provides an on-demand, integrated business management application suite which offers Accounting/Enterprise Resource Planning, Customer Relationship Management & Ecommerce functionality to medium-sized businesses & other businesses. This stock is trading up 1.6% at $64.40 in recent trading.

Today's Volume: 573,000

Average Volume: 506,319

Volume % Change: 118%

From a technical perspective, N is moving up modestly here and breaking out above yesterday's high near $64 with decent volume. This move is quickly pushing N within range of triggering a major breakout trade. That trade will hit once N manages to take out its 52-week high of $67.02 with high volume.

Traders should now look for long-biased trades in N as long as it's trending above today's low of $63.08, and then once it sustains a move or close above its 52-week high of $67.02 with volume that hits near or above 506,319 shares. If that breakout triggers soon, then N will set up to enter new 52-week high territory, which is bullish technical price action. Some possible upside targets off that breakout are $70 to $75 in the near future.

Informatica (INFA)

This is an independent provider of enterprise data integration and data quality software and services. This stock is trading up 6.6% at $27.40 in recent trading.

Today's Volume: 2.69 million

Average Volume: 2.47 million

Volume % Change: 84%

From a technical perspective, INFA is ripping higher here just below its 50-day moving average of $27.48 with above-average volume. This move is quickly pushing shares of INFA within range of triggering a major breakout trade. That trade will hit once INFA manages to clear some near-term overhead resistance levels at $27.63 to $27.95, and then once it takes out more overhead resistance at $30.16 with high volume. At last check, INFA has hit an intraday high of $27.73 and volume is just starting to surpass its three-month average action of 2.47 million shares.

Traders should now look for long-biased trades in INFA as long as it's trending near or above its 50-day at $27.48, and then once it sustains a move or close above those breakout levels with volume that hits near or above 2.47 million shares. If that breakout triggers soon, then INFA will set up to re-fill some of its previous gap down zone from October that started near $34.

Just Energy Group (JE)

This company is primarily involved in the sale of natural gas, electricity and green energy products to residential and commercial customers under long-term fixed-price, price-protected or variable-priced contracts. This stock is trading up 6.3% at $10.08 in recent trading.

Today's Volume: 324,000

Average Volume: 222,566

Volume % Change: 221%

Shares of JE are ripping higher today after the company said CPPIB Credit Investments invested C$105 million of unsecured, five and a half year term notes with a 9.75% coupon.

From a technical perspective, JE is soaring back above its 50-day moving average of $9.84 here with above-average volume. This stock has been uptrending strong for the last month, with shares moving higher from a low of $7.85 to its recent high of $10.10. During that uptrend, shares of JE have been mostly making higher lows and higher highs, which is bullish technical price action. That move has now pushed shares of JE within range of triggering a near-term breakout trade. That trade will hit once JE manages to clear some near-term overhead resistance levels at $10.47 to its 200-day at $10.97 with high volume.

Traders should now look for long-biased trades in JE as long as it's trending above its 50-day at $9.84, and then once it sustains a move or close above those breakout levels with volume that hits near or above 222,566 shares. If that breakout triggers soon, then JE will set up to re-test or possibly take out its next major overhead resistance level at $11.14 to $11.36. Any high-volume move above $11.36 will then put $12.50 to $12.63 into focus for shares of JE.

Alnylam Pharmaceuticals (ALNY)

This is a biopharmaceutical company developing novel therapeutics based on RNA interference, which is a naturally occurring biological pathway within cells for selectively silencing and regulating the expression of specific genes. This stock is trading up 5.1% at $18.93 in recent trading.

Today's Volume: 396,000

Average Volume: 273,855

Volume % Change: 217%

Shares of ALNY are trending higher today after Piper Jaffray upgraded the stock to overweight from neutral.

From a technical perspective, ALNY is trending higher here right above its 50-day moving average of $17.11 and above some near-term overhead resistance at $18.92 with above-average volume. This move is quickly pushing shares of ALNY within range of triggering a major breakout trade. That trade will hit once ALNY manages to clear its 52-week high of $21.38 with high volume.

Traders should now look for long-biased trades in ALNY as long as it's trending above today's low of $18.21, and then once it sustains a move or close above $18.92 to $21.38 with volume that hits near or above 273,855 shares. If that breakout triggers soon, then ALNY will set up to re-test or possibly take out its next major overhead resistance levels at $23 to $25. Keep in mind that any move above $21.38 will also push ALNY into new 52-week high territory, which is bullish technical price action.

O'Reilly Automotive (ORLY)

This is a specialty retailer of automotive aftermarket parts, tools, supplies, equipment and accessories in the United States, selling its products to both do-it-yourself customers and professional service providers. This stock is trading up 1.1% at $92.97 in recent trading.

Today's Volume: 2.11 million

Average Volume: 1.65 million

Volume % Change: 125%

From a technical perspective, ORLY is bouncing modestly higher here right above its 200-day moving average of $90.44 with above-average volume. This stock has been uptrending for the last month and change, with shares soaring from a low of $78.58 to its recent high of $94.88. During that move, shares of ORLY have been mostly making higher lows and higher highs, which is bullish technical price action. That move has now pushed ORLY within range of triggering a major breakout trade. That trade will hit once ORLY manages to clear some near-term overhead resistance at $94.88 with high volume.

Traders should now look for long-biased trades in ORLY as long as it's trending above its 200-day at $90.44, and then once it sustains a move or close above $94.88 with volume that hits near or above 1.65 million shares. If that breakout triggers soon, then ORLY will set up to re-test or possibly take out its next major overhead resistance level at $97 to $102.96.

To see more stocks rising on unusual volume, check out the Stocks Rising On Unusual Volume portfolio on Stockpickr.

-- Written by Roberto Pedone in Winderemere, Fla.

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At the time of publication, author had no positions in stocks mentioned.

Roberto Pedone, based out of Windermere, Fla., 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.