In July 2010, Bianco Reserch highlighted an analysis by Ron Griess at TheChartStore.com of every instance of the death cross (aka dark cross) since 1930. Below are his results.
The first table shows the performance of the S&P Composite for the time periods listed when the 50-day moving average is falling and crosses a rising 200-day moving average. (Dark Cross)
The second table shows the performance of the S&P Composite for the time periods listed when the 50-day moving average is falling and crosses a falling 200-day moving average. (Death Cross)
The bottom line: There are lots of things to worry about, but this is not one of them — its a low probability indicator:
Please use the comments to demonstrate your own ignorance, unfamiliarity with empirical data and lack of respect for scientific knowledge. Be sure to create straw men and argue against things I have neither said nor implied. If you could repeat previously discredited memes or steer the conversation into irrelevant, off topic discussions, it would be appreciated. Lastly, kindly forgo all civility in your discourse . . . you are, after all, anonymous.