Actually it fails at least half the time. Check out the late summer of 2006 and 2004 in the S&P 500 for counter-examples to the "successful" 50/200 MA "death" crosses in 2000 and 2008. You can also see false alarm crosses in GLD, XAU and other gold fund/indexes. Hope you didn't go crazy shorting gold on each of those crosses...
I can tell you've probably blown out several account: short incinerated. What kind of amateur trader, short or long, would risk being incinerated on one trade idea. How ridiculous. How about, shorts probably stopped out for a small loss, or shorts stopped out for a small loss on short positions but made bigger profits on long positions. Don't you ever get tired of high school light weight statements like, shorts are dead man, or longs got their asses kicked. So boring and juvenile.
this cross usually takes place at the top of the first beginning move and fakes everybody out. patience grasshopper..........
Need to be losing 700k jobs a month and big banks going under at a high rate to get back to 666. When everyone is bearish it will be the start of the next leg up. When everyone is bullish it will be the start of the next leg down.