Glossary term
Bear Put Spread
A bear put spread buys a higher-strike put and sells a lower-strike put to profit from a moderate decline.
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What Is a Bear Put Spread?
A bear put spread is a defined-risk options strategy that buys a higher-strike put and sells a lower-strike put with the same expiration. It is used when a trader expects the underlying asset to decline, but not necessarily collapse far below the lower strike.
The position is usually opened for a net debit. Buying the higher-strike put creates downside exposure, while selling the lower-strike put reduces the cost. In exchange, the trader gives up additional profit below the lower strike.
Key Takeaways
- A bear put spread combines a long higher-strike put with a short lower-strike put.
- It is usually entered for a net debit.
- The maximum loss is the premium paid, before commissions and fees.
- The maximum gain is the strike width minus the net debit, before costs.
- The strategy suits a moderate bearish view rather than an unlimited downside forecast.
How the Strategy Works
Assume a stock trades at $50. A trader buys a $50 put and sells a $45 put with the same expiration. The purchased put gains value as the stock falls below $50. The sold put helps finance the trade but caps gains below $45.
If the stock finishes above $50 at expiration, both puts may expire worthless and the trader loses the net debit. If it finishes below $45, the spread reaches its maximum value of $5 before subtracting the original cost. Between the strikes, the outcome depends on the stock's final price.
Payoff and Risk
Outcome at expiration | General result |
|---|---|
Underlying above long put strike | Maximum loss: net debit paid. |
Underlying between strikes | Partial recovery, breakeven, or profit depending on final price. |
Underlying below short put strike | Maximum profit: strike width minus net debit. |
The breakeven is the higher strike minus the net debit. If the $50/$45 bear put spread costs $2, breakeven at expiration is $48.
Why Traders Use It
A bear put spread can be cheaper than buying a put outright. This is useful when implied volatility makes long puts expensive or when the trader has a clear downside target. The short put monetizes the area below that target and reduces the initial cost.
The strategy also defines risk. The trader knows the maximum loss when entering the position. That can make it more manageable than shorting shares, where losses can grow if the stock rallies.
Tradeoffs
The main tradeoff is capped profit. If the underlying falls sharply below the short put strike, the spread stops gaining beyond its maximum value. The trader has exchanged unlimited downside participation for lower cost and defined risk.
Time decay and volatility also matter. If the underlying does not fall soon enough, the spread may lose value. Changes in implied volatility can affect both legs, though usually less dramatically than a single long put.
Bear put spreads can also be used to hedge an existing position. An investor may buy a put spread instead of a single protective put when full downside protection is too expensive or unnecessary. The lower short put helps finance the hedge, but protection stops improving below that strike.
This makes strike choice important. The long put should reflect where protection begins to matter, and the short put should reflect where the investor is comfortable capping the hedge's benefit.
Liquidity also matters. Wide option spreads can make entering and exiting a bear put spread more expensive than the payoff diagram suggests. Traders should compare theoretical risk with actual bid-ask costs before assuming the structure is efficient.
Investor Takeaway
A bear put spread is a targeted bearish options trade. It works best when the trader expects a moderate decline, understands the breakeven, and accepts that protection against premium cost comes with capped downside profit.