Just look at STD hourly and daily charts. On the hourly, STD is breaking down from a head & shoulders top pattern with an initial price objective of $10.84. On the daily chart, STD put in a double top that has a down-side target of $10.80.
So, once those price objectives are met, look for technicals to start signaling selling exhaustion and buying signal.
Could even be today, what with Libya spiraling into civil war and Day of Rage in Saudi tomorrow; oh, and episode #72 of the Euro Follies cranking up. Folks who want to get out of the way will do so today taking advantage of market liquidity and depth of Thursday vs thinner Friday dynamic.