I thought i would add some perspective. Using a 10 min chart, and equivalent MA of 6 and 51, it appears that -30odd on the MACD appears to offer buys and, as Bonsai has pointed out, the MACD peaks have recently found problems over-coming the zero line. I presume we are trying to work back to the zero line.... and then it gets interesting again.
Also, in hindsight, note the clear divergence with price and the MACD at the market peak last week.