Bullish MACD cross on USD was at the start of precipitous collapse in Oct. 2008, marked the recent top in May 2011 while bearish cross marked IT bull trends like Sept. 10 and long term trend like March 2009. Most recent 2 crosses did not signify anything for the equity markets though. Currency correlations are important, but market discipline and your trading account are much more important. Keep an eye on your support levels. My support level for longs is SPX 1180 and for starting short positions is below 1170. Good luck!
