Bernie Schaeffer is a master at this. He has an excellent website with this information at www.schaeffersresearch.com. I subscribe to 3 free newsletters from his company that often feature opportunities using these values. Good Luck Steve Rosenbaum options-trading-resources.com Option Trading tools the pros wish they had! A former Chicago Mercantile Exchange employee reviews stock option trading software, books, and web sites and online income opportunity.