Long Put

A long put means buying a put option. It gives you the right to sell the underlying at the strike price before expiration. If the underlying falls below the strike, the put gains value. Long puts are used in two ways: as a bearish bet with limited risk, and as insurance to protect shares you already own. The most you can lose is the premium paid, which makes long puts a safer way to bet on a decline than short selling.

Payoff at a glance#

Worked example#

Long put vs short selling#

Puts are often preferred for short term bearish views, especially on stocks that are hard to borrow or prone to short squeezes. See Short Selling.

Puts as insurance#

Owning shares plus a put creates a floor under your losses. This is the protective put, covered in Protective Put. Index puts are widely used by investors to hedge whole portfolios against market declines. See Hedging.

Volatility and put prices#

Puts tend to be more expensive relative to calls on equity indices, especially for strikes below the current price. This pattern, called volatility skew, reflects strong demand for downside protection and the tendency of markets to fall faster than they rise. Buying puts during calm periods, when implied volatility is low, is cheaper than during panics. See Volatility Smile and Skew and Vega.

Choosing strike and expiration#

• At the money puts respond strongly to moves but cost more.
• Out of the money puts are cheaper and suit crash protection, but expire worthless most of the time.
• In the money puts behave more like a short stock position.
• Expiration should give your bearish thesis enough time to play out.

See Strike Price and Option Expiration Dates.

Managing a long put#

• Take profits as the target is reached; puts can lose value quickly when markets bounce.
• Cut losses if the thesis breaks.
• Convert to a bear put spread by selling a lower strike put to recover some premium. See Bear Put Spread.
• Roll down a winning put to lock in gains while keeping protection.

Common mistakes#

• Buying puts after a crash, when implied volatility and premiums are highest.
• Expecting a hedge to be free: puts cost money every month they are held.
• Choosing expirations that are too short.
• Ignoring that markets often rise: a constant put buying habit can drag on returns.

Frequently asked questions#

What is a long put?#

Buying a put option, which gives the right to sell the underlying at the strike price. It profits if the price falls below the strike minus the premium.

Is buying a put better than shorting a stock?#

Puts limit the loss to the premium and avoid borrow costs, but they expire and lose value over time. Short selling has no time limit but losses have no cap.

How do puts protect a portfolio?#

If the market falls, the puts gain value, offsetting losses on the holdings. This protection costs the premium paid.

Next, learn to sell puts in Short Put.