Best Buy $BBY topped off in January when it tagged $78. There was a sharp correction to $65 and then a rebound. But I think there might be more downside, especially after seeing a bearish pennant form in February.BBY Daily Chart(click to enlarge)Pennant and abc correction:- The daily chart does show a choppy run up in February, which has developed into a pennant.- A break below $72 should open up the $66 area, with potential extension towards $62-$63. - Note that this is an "abc" correction, which projects wave c as the length of wave a.- Also note that this $62-$63 area is a previous resistance area. By the time price gets there, there might be the 200-day simple moving average as well as a rising trendline to support BBY.