An at-the-money option (put option) in which the strike price is equivalent or approximately equal to the underlying asset's price....

A put diagonal calendar spread which is designed to profit on the expectation that the underlying would break out in…

A calendar put spread that is established by selling a front-month put option at a given strike price and buying…

A put option whose strike price, at a given point in time before or at expiration, is equal to the...