MADISON, 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.Major moves in volume can signal unusual activity, such as insider buying or selling -- or buying or selling by "superinvestors."
Average Volume: 52,155
Volume % Change: 190% From a technical perspective, STML is soaring higher here and breaking out to a new all-time high above some past overhead resistance levels at $13.70 to $14.26 with above-average volume. At last check, STML has hit an intraday high of $14.50 and volume is well above its three-month average action of 52.155 shares. Traders should now look for long-biased trades in STML as long as it's trending above $13.70 or above $14.26 and then once it sustains a move or close its intraday high of $14.50 with volume that hits near or above 52,155 shares. If that breakout triggers soon, then STML will set up to enter new all-time high territory, which is bullish technical price action. Some possible upside targets off that move are $16 to $18. WuXi PharmaTech WuXi PharmaTech ( WX) is a pharmaceutical, biotechnology and medical device R&D outsourcing company, with operations in China and the U.S. This stock is trading up 3.2% at $18.99 in recent trading.