Filled at 0.95 Debit, securing $7.50 of Theoretical edge per 1 contract.
Probability of Touching the 87.5 Call Sell leg = 67.12% before expiry. This is the leg that makes the profit.
See Point & Figure Breakout:
http://stockcharts.com/def/servlet/SC.pnf?chart=MMM,PRPADANRBO[PA][D20111021][F1!3!1.0!!2!20]&pref=G
