For what that "pattern" is worth, wouldn't you think that's a bit too simplistic to validate your hypothesis upon?
I wouldn't be that quick in decision if the hypothesis wasn't confirmed several times before that.
Well, when it comes to markets and patterns I guess you can never be too careful about getting fooled by randomness.
Usually the guy who think he knows how the markets will behave will end up been the one who lose.
Funny fact: Economist and stock market analysts are just as good as your local taxi driver to predict future.