I'm keeping some dry powder aside (though yesterday I was very tempted to pull the trigger at $277) for after ER.
My current holdings I am holding through ER in either case. If the stock price drops after ER, I'm adding with my dry powder. If the stock price increases, I'm holding on to my cash for a later dip.
I'm comfortable with slight FOMO for my cash position, given that a rise will give my portfolio a nice boost. Let us say my FOMO is larger regarding buying a dip to let's say $250.