Put Options
What put options are and how to use them
What Is a Put Option?
A put option is a contract giving the holder the RIGHT (but not the obligation) to SELL the underlying asset at a specific price (the strike) on or before a specific date (expiration). It is the opposite of a call option. When you buy a put, you are paying a premium for the right to sell at a fixed price. If the market falls below your strike, your put becomes valuable because you can sell above the market price. For example, if price is $100 and you buy a put with a $95 strike, you have paid for the right to sell at $95 even if the market drops to $80. In that case your put is deep in the money. The buyer of a put expects price to fall; if it does, the option gains value. The seller of a put expects price to rise or stay relatively stable; if it does, the option expires worthless and the seller keeps the premium.
Put In The Money (ITM) vs Out of The Money (OTM)
A put is "in the money" (ITM) when the underlying price is BELOW the strike. A $100-strike put is ITM when price is $95 or lower. The lower the price, the deeper ITM the put and the more intrinsic value it holds. The intrinsic value of a put is the greater of (strike − current price) and zero. A put is "out of the money" (OTM) when the underlying price is ABOVE the strike. A $100-strike put is OTM when price is $105 or higher. OTM puts have no intrinsic value; they consist entirely of extrinsic value (time value). The most heavily bought puts are generally OTM because they are the cheapest and offer the greatest leverage if price falls sharply. Put sellers generally sell OTM because those options have a high probability of expiring worthless.
Buying Puts as a Hedge or a Bearish Bet
Put buyers have two main use cases. The first is defensive hedging: if you own shares and are worried price might fall, you can buy puts to cap your potential losses. The put acts as insurance — if price falls, the put gains value and offsets the loss on the shares. For example, if you own 100 shares at $100 and buy a $95-strike put, then price falls to $80, your shares lose $2,000 but your put gains $1,500, capping the net loss. The second is a speculative bearish bet: if you expect price to fall but do not own the shares, you can buy a put to profit from the decline without owning the asset. Speculative put buying is especially popular ahead of events that could push prices lower (poor earnings, dividend cuts and so on). Buying puts is a way to go short without the risks of short selling.
Selling Puts: Generating Income or Taking On Obligations
Put sellers collect a premium in exchange for taking on the obligation to buy shares if the option is exercised. The seller of a put expects price to stay above the strike so that the option expires worthless. For example, selling a $95 put when price is $100 collects a premium. If price stays above $95, the put expires worthless and the seller keeps the whole premium. If price falls below $95, the seller may be assigned and obliged to buy 100 shares at $95. Some put sellers deliberately want to be assigned because they are happy to own the shares at the strike price (a strategy known as selling puts in order to end up buying the stock). Others simply want the premium and close the position before expiration to avoid assignment. Selling puts is a popular way to generate income alongside a stock holding, especially if you expect price to be relatively stable.
Put Spreads: Capping the Risk of Put Positions
A put spread combines buying and selling put options simultaneously. The most common put spread is the bull put spread, a bullish credit structure: you sell an OTM put and buy another further OTM. For example, you sell the $95-strike put and buy the $90-strike put. That caps your maximum risk at the difference between strikes less the premium collected, while you take in a net credit. Your maximum gain is the net credit received. This structure has several advantages over selling a naked put: risk is capped rather than unlimited, the margin requirement is lower, and it can be traded in smaller accounts. The bear put spread is the inverse structure and is genuinely bearish: you buy a put near the money and sell another further OTM, paying a debit. It is used to bet on a decline with limited risk. Put spreads are widely used by traders who want to sell puts but face risk or capital limits. Understanding spreads is essential to moving from simple options trades to more sophisticated strategies.