Bear put spread

In finance, a bear put spread is a limited profit, limited risk options trading strategy that can be used when the options trader is moderately bearish on the underlying security. It is entered by buying higher striking in-the-money put options and selling the same number of lower striking out-of-the-money put options on the same underlying security and the same expiration month.
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The purchase of a put with a high strike price against the sale of a put with a lower strike price in expectation of declining prices. The maximum profit is calculated as follows: (high strike price - low strike price) - net premium received where net premium received = premiums paid - premiums received.