If you're like I am and have to short something, look for stocks that didn't participate in Jan 2018 rally.
Otherwise, just go with the trend and buy some calls on the dips. Fading the gap (in both directions) seems to be the best day trade....
(No SPY position, just saying that I'm going with the melt up theory for the next 2 weeks.)
Regardless, tomorrow is Ponzi Friday and the market is required to go up ('cause it's payday and 401k plans need to buy stock.)
I may be wrong, but the action today was enough to convince me that we're melting up, and this is more than just a corrective bounce.
Maybe we just go sideways at the top like last May.