It always strikes me as funny when Warren Buffett'sBerkshire Hathaway ( BRK.B) pops up as a potential trade. After all, until recently, the Oracle of Omaha intentionally kept the prices of his firm's shares at high levels to dissuade trading. But since the decision to split shares of his Class B stock in 2010, liquidity has been high enough for trading opportunities to come through this stock. Berkshire is enjoying a good run in 2012, rallying more than twice as much as the S&P over the last six months. But in the short-term, the setup to watch is the same ascending triangle that we're focusing on in MTB. $86 resistance has been a stumbling point for BRK in August. A breakout above that price is a buy signal for Berkshire. >>5 Financial Stocks hedge Funds LoveMomentum adds some confidence to this trade right now -- the 14-day RSI has been in a long-term uptrtend that's remained unbroken for the last several months. Since momentum is a leading indicator of price, that's a good sign.