3 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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Given Imaging

Given Imaging ( GIVN) develops, manufactures and markets diagnostic products for the visualization and detection of disorders of the gastrointestinal tract. Its products include Capsule Endoscopy and pH Monitoring. This stock is trading up 5.2% at $16.73 in recent trading.

Today's Volume: 90,000

Average Volume: 91,753

Volume % Change: 66%

Shares of GIVN are trending higher today after Bloomberg.com reported that a person with direct knowledge said Permira Holdings is among private equity firms considering buying the company.

From a technical perspective, GIVN is ripping higher here back above its 200-day moving average of $16.53 with decent volume. This move has started to push shares of GIVN into its gap down zone from earlier this month that started at $18.50.

Traders should now look for long-biased trades in GIVN as long as it's trending above today's low of $16.42 with strong upside volume flows. I would consider any upside volume day that registers near or above its three-month average action of 91,753 shares as bullish. If GIVN can maintain that trend, then look for this stock to re-fill that gap down zone back to its 50-day moving average of $17.61, or back towards $18.50.

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