Strike Price: The stated price per share for which the underlying security may be purchased (in the case of a call) or sold (in the case of a put) by the option holder upon exercise of the option contract or over the specified period.

Strike Price Interval: The normal price differential between option strike prices. Equity options generally have $2.50 strike price intervals (if the underlying stock price is below $25), $5.00 intervals (from $25 to $200), and $10 intervals (above $200). LEAPS generally start with one at-the-money, one in-the-money, and one out-of-the-money strike price. The latter two are usually set 20%-25% away from the former.