to benefit from this kind of market eventsto identify "trigger" is not that important to us. Why? because once the underlying are laid ready there, anything similar can trigger. this one did not move the market, that one will. You cannot prevent all the trigger. but You can, identify the root. once you identify the root, you can ride on the falsehood , jump before the majority realize it. (quote from Soros) SO, we need spend a lot of time to study the root. The more basic things.