More Videos:

2 Stocks Surging on Unusual Volume

Tickers in this article: CF TLYS
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."

>>5 Stocks Setting Up to Break Out

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.

>>5 Breakout Trades to Benefit From the 'January Effect'


Tilly's (TLYS) is a specialty retailer of West Coast inspired apparel, footwear and accessories. It offers a wide assortment of brands such as Volcom, RVCA, Billabong, LRG, Hurley, FOX, DC etc. This stock is trading up 5.2% at $13.75 in recent trading.

Today's Volume: 202,000

Average Volume: 156,428

Volume % Change: 153%

From a technical perspective, TLYS is bouncing higher here right above some near-term support at $12.50 with above-average volume. This move is quickly pushing TLYS within range of triggering a major breakout trade. That trade will hit if TLYS manages to clear some near-term overhead resistance levels at $13.81 to its 50-day at $14.10 and then once it clears more overhead resistance at $14.32 with high volume.

Traders should now look for long-biased trades in TLYS as long as it's trending above today's low of $13.06, and then once it sustains a move or close above those breakout levels with volume that hits near or above 156,428 shares. If that breakout triggers soon, then TYLS will set up to re-fill its previous gap down zone from last November that started near $16.50.

CF Industries

CF Industries (CF) is a manufacturer and distributor of nitrogen and phosphate fertilizer products in North America. Its principal products are ammonia, urea, urea ammonium nitrate solution, diammonium phosphate and monoammonium phosphate. This stock is trading up 1% at $219.51 in recent trading.

Today's Volume: 1.35 million

Average Volume: 937,551

Volume % Change: 125%

From a technical perspective, CF is trending higher here well above its 50-day moving average of $206.07 with above-average volume. This move has started to push shares of CF into breakout territory, since the stock has taken out some near-term overhead resistance at $218.50.