sentences:  The put backspread is a strategy in options trading whereby the options trader writes a number of put options at a higher strike price (often at-the-money) and buys a greater number (often twice as many) of put options at a lower strike price (often out-of-the-money) of the same underlying stock and expiration date.Typically the strikes are selected such that the cost of the long puts is largely offset by the premium earned in writing the at-the-money puts.This strategy is generally considered very bearish but it can also serve as a neutral/bullish play under the right conditions.