Stock Quotes in this Article: BBY, BTE, AEGR, CEMP

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.

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

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Baytex Energy

Baytex Energy (BTE), an oil and gas company, is engaged in the acquisition, development and production of oil and natural gas in the Western Canadian Sedimentary Basin and the U.S. This stock closed up 1.8% to $43.97 in Wednesday's trading session.

Wednesday's Volume: 1.12 million

Three-Month Average Volume: 171,409

Volume % Change: 602%

From a technical perspective, BTE jumped modestly higher here right off its 50-day moving average of $43.40 with monster upside volume flows. This stock has been uptrending over the last month, with shares moving higher from its low of $40.34 to its intraday high of $44.07. During that uptrend, shares of BTE have been making mostly higher lows and higher highs, which is bullish technical price action. This move to the upside on Wednesday is starting to push shares of BTE within range of triggering a big breakout trade. That trade will hit if BTE manages to take out some near-term overhead resistance levels at $44.95 to $45.96 and then above its 52-week high at $46.46 with high volume.

Traders should now look for long-biased trades in BTE as long as it's trending above its 50-day at $43.40 or above $43 and then once it sustains a move or close above those breakout levels with volume that hits near or above 171,409 shares. If that breakout hits soon, then BTE will set up to enter new 52-week-high territory above $46.46, which is bullish technical price action. Some possible upside targets off that breakout are $50 to $55.

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Best Buy

Best Buy (BBY) operates as a multi-national, multi-channel retailer of technology products in the U.S., Canada, China and Mexico. This stock closed up 6.3% at $31.69 in Wednesday's trading session.

Wednesday's Volume: 16.43 million

Three-Month Average Volume: 4.32 million

Volume % Change: 224%

From a technical perspective, BBY ripped higher here right off its 200-day moving average of $30.04 and back above its 50-day moving average of $30.30 with heavy upside volume flows. This strong move higher on Wednesday is quickly pushing shares of BBY within range of triggering a big breakout trade. That trade will hit if BBY manages to take out some near-term overhead resistance levels at $32.02 to $32.24 with high volume.

Traders should now look for long-biased trades in BBY as long as it's trending above some key near-term support at $29.76 and then once it sustains a move or close above those breakout levels with volume that hits near or above 4.32 million shares. If that breakout triggers soon, then BBY will set up to re-fill some of its previous gap-down-day zone from January that started near $38.

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Aegerion Pharmaceuticals

Aegerion Pharmaceuticals (AEGR), a biopharmaceutical company, develops and commercializes therapies for patients with debilitating rare diseases in the U.S. This stock closed up 5% at $32.54 in Wednesday's trading session.

Wednesday's Volume: 2 million

Three-Month Average Volume: 1.03 million

Volume % Change: 110%

From a technical perspective, AEGR jumped sharply higher here right above its 50-day moving average of $30.99 with above-average volume. This move to the upside on Wednesday pushed shares of AEGR above its recent consolidation chart pattern that saw the stock trending between $30 and $32. Market players should now look for a continuation move to the upside in the short-term if AEGR manages to take out Wednesday's intraday high of $33.36 to some more near-term overhead resistance at $33.78 with strong upside volume flows.

Traders should now look for long-biased trades in AEGR as long as it's trending above Wednesday's intraday low of $31.32 or above its 50-day at $30.99 and then once it sustains a move or close above $33.36 to $33.78 with volume that this near or above 1.03 million shares. If that move gets started soon, then AEGR will set up to re-test or possibly take out its next major overhead resistance level at $36.68. Any high-volume move above $36.68 will then give AEGR a chance to re-fill some of its previous gap-down-day zone from May that started at $45.

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Cempra

Cempra (CEMP), a clinical-stage pharmaceutical company, focuses on developing antibiotics to meet critical medical needs in the treatment of bacterial infectious diseases in North America. This stock closed up 5.2% at $10.63 in Wednesday's trading session.

Wednesday's Volume: 305,000

Three-Month Average Volume: 154,911

Volume % Change: 110%

From a technical perspective, CEMP spiked sharply higher here and broke out above some near-term overhead resistance at $10.57 with above-average volume. This stock recently formed a double bottom chart pattern at $9.12 to $9.20. Following that bottom, shares of CEMP have started to trend higher back above its 50-day moving average with strong upside volume flows. Market players should now look for a continuation move to the upside in the near-term if CEMP manages to take out Wednesday's intraday high of $10.68 to its 200-day moving average of $10.99 with high volume.

Traders should now look for long-biased trades in CEMP as long as it's trending above Wednesday's intraday low of $10.15 or above its 50-day at $9.83 and then once it sustains a move or close above $10.68 to $10.99 with volume that hits near or above 154,911 shares. If that move develops soon, then CEMP will set up to re-test or possibly take out its next major overhead resistance levels at $11.60 to $12, or even $12.50 to $13.

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.