4 Stocks Rising on Unusual Volume

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.

Major moves in volume can signal unusual activity, such as insider buying or selling -- or buying or selling by "superinvestors."

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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 today.

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Trulia

Trulia ( TRLA), which operates as a real estate search engine, is trading up 3.1% at $32.80 in recent trading.

Today's Volume: 715,000

Average Volume: 509,402

Volume % Change: 206%

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From a technical perspective, TRLA is trending higher here and starting to trigger a breakout above some near-term overhead resistance levels at $31.94 to $32.40 with heavy upside volume. This stock recently bounced right off its 50-day moving average of $28.69 and is now taking out those key overhead resistance levels.

Traders should now look for long-biased trades in TRLA as long as it's trending above today's low of $31.65 or above that first breakout level of $31.94, and then once it sustains a move or close above $32.40 to $33.01 with volume that hits near or above 509,402 shares. If TRLA can maintain that trend, then this stock will set up to re-test or possibly take out its next major overhead resistance level at its 52-week high of $38.22.

Tesaro

Tesaro ( TSRO), an oncology-focused biopharmaceutical company, is trading up 6.6% at $24.84 in recent trading.

Today's Volume: 185,000

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