Buy To Open Put Option -

: It can also be used as a "protective put" (insurance) to limit downside risk for a stock you already own. Risk and Reward Profile

: Investors typically use this strategy when they expect the underlying asset's price to decline.

: Substantial, peaking if the underlying stock price falls to zero.

: Calculated as the Strike Price minus the Premium Paid .

A put option is an order used to initiate a new long position in a put option contract. This order signals to the market that you are creating a new position rather than closing an existing one. Core Concept

: By "buying to open" a put, you pay an upfront fee (premium) for the right, but not the obligation, to sell 100 shares of an underlying stock at a specific strike price before the expiration date .