NYSE:UPS Triggered a spike alert this morning which is happening at the 50% Retracement of the Post Earnings Rally. (see below for Daily higher timeframe context)
These are the real "earnings plays" that can yield positive returns rather than trying to buy a guess on the day before. Trying to buy or sell the day before earnings is a guess but very often earnings cycles create these setups weeks after a move has occurred with a much higher probability than a 50/50 bet.