Stock Quotes in this Article: MTZ, SAVE, CARB

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 recently.

MasTec

MasTec (MTZ) an infrastructure construction company, provides engineering, building, installation, maintenance and upgrade services for energy, utility and communications infrastructure primarily in the U.S. This stock closed up 1.3% at $43.25 in Monday's trading session.

Monday's Volume: 1.27 million

Three-Month Average Volume: 695,711

Volume % Change: 56%

From a technical perspective, MTZ bounced modestly higher here right above some near-term support at $42 with above-average volume. This move briefly pushed shares of MTZ into breakout and new 52-week-high territory, after the stock flirted with some near-term overhead resistance at $43.45. Shares of MTZ tagged an intraday high of $43.49 before finishing the trading session at $43.25. Market players should now look for a continuation move higher in the short-term if MTZ manages to take out Monday's high of $43.49 with strong volume.

Traders should now look for long-biased trades in MTZ as long as it's trending above support at $42 or at $41 and then once it sustains a move or close above $43.49 with volume that hits near or above 695,711 shares. If we get that move soon, then MTZ will set up to enter new 52-week-high territory, which is bullish technical price action. Some possible upside targets off that move are $48 to $50.

Carbonite

Carbonite (CARB) provides cloud backup solutions with access to files stored in its servers in the U.S. This stock closed up 4% at $10.79 in Monday's trading session.

Monday's Volume: 489,000

Three-Month Average Volume: 163,179

Volume % Change: 225%

From a technical perspective, CARB spiked sharply higher here right above some near-term support levels at $10.24 to $10 with above-average volume. This move briefly pushed shares of CARB back above its 50-day moving average of $10.90 before the stock closed just below that level at $10.79. Shares of CARB are now starting to trend within range of triggering a near-term breakout trade. That trade will hit if CARB manages to take out some near-term overhead resistance levels at $11.23 to $11.57 with high volume.

Traders should now look for long-biased trades in CARB as long as it's trending above Monday's low of $10.19 or above more support levels at $10 to $9.85 and then once it sustains a move or close above those breakout levels with volume that's near or above 163,179 shares. If that breakout kicks off soon, then CARB will set up to re-test or possibly take out its next major overhead resistance levels at its 200-day moving average of at $12.70 to $13.80.

Spirit Airlines

Spirit Airlines (SAVE) provides low-fare airline services. It operates approximately 250 daily flights to 50 destinations in the U.S., Caribbean and Latin America. This stock closed up 0.87% at $60.32 in Monday's trading session.

Monday's Volume: 1.04 million

Three-Month Average Volume: 897,420

Volume % Change: 50%

From a technical perspective, SAVE bounced modestly higher here right off some near-term support at $57.50 with above-average volume. This stock has been uptrending strong for the last two months, with shares moving higher from its low of $43.34 to its recent high of $63.59. During that uptrend, shares of SAVE have been consistently making higher lows and higher highs, which is bullish technical price action. This stock is now starting to move within range of triggering a near-term breakout trade. That trade will hit if SAVE manages to take out some near-term overhead resistance levels at $62.50 to its all-time high at $63.59 with high volume.

Traders should now look for long-biased trades in SAVE as long as it's trending above some near-term support levels at $57.40 or at $57 and then once it sustains a move or close above those breakout levels with volume that's near or above 897,420 shares. If that breakout starts soon, then SAVE will set up to enter new all-time-high territory, which is bullish technical price action. Some possible upside targets off that breakout are $70 to $75.

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.