Things have been comparatively good this year for shares of American Financial Group ( AFG), a mid-cap property and casualty insurance company that's rallied 10.47% year-to-date in addition to a 1.96% dividend yield for shareholders. As positive as this stock's performance may have been in 2011, shares look primed to deliver more stock outperformance in 2012. That's thanks to a bullish ascending triangle setup in shares. An ascending triangle can be identified by a staunch horizontal resistance level (at $37, in AFG's case) and uptrending support below shares. When this stock breaks out above that $37 level, it's a signal that it's time to become a buyer of this stock. >>5 Stocks to Buy for a Santa Claus Rally The 50-day moving average is acting like a reasonable proxy for support right now. For that reason, it makes sense to use that MA as a protectivee stop level for AFG. Because the moving average approximates the trend in this stock, it'll act as a trailing stop.