Last up is brokerage firm TD Ameritrade ( AMTD), the one firm that's primed to benefit most directly from a rally in stocks -- and its chart shows it. AMTD has gotten hammered over the last year, underperforming the broad market by around 20% since last January. That's come largely at the hands of prolonged low trading volumes for stocks and historically low interest rates earned on its cash float -- an equity rally fixes both of those problems. But that's a long-term thesis. In the short term, the double-bottom breakout in AMTD holds the key to gains. A double bottom is a reversal pattern that's formed by two swing lows that bottom out at approximately the same price level. They're separated by a peak, a level that marks the trigger point for this trade. AMTD broke out above its peak on Wednesday, confirming the move with yesterday's open and close above that level. This is a long-term pattern, and as a result, it's got long-term trading implications. That means that we could see AMTD move higher pretty quickly over the next couple of months. RSI adds some extra confidence to this trade as well - but price is the most important thing to watch here for an entry. I'd recommend going long on this stock's next white bar day; then, I'd recommend keeping a protective stop in place just below $15. To see this week's trades in action, check out this week's Must-See Charts portfolio on Stockpickr. -- Written by Jonas Elmerraji in Baltimore.