Here is a simple mean reversion trade. The chart is not a perfect text book trade, but those perfect setups are rare anyway. That is where judgement/experience comes into play. Most of the mean-reversion indicators are all in place. DI- had started turning down starting 6/18 and RSI also bounced back up after being in oversold territory. As far as the price action is concerned, the downward momentum seems to have stopped and the stock is now going sideways with intermittent green days showing up every now and then since 6/18.

MMM languished around in a trading range throughout this trade, so had to wait almost 2 days before expiration to close this for 94% ROI. If the stock takes in your direction immediately, then you can close these trades in as early as 10-14 days. In the end, profit is profit!