Avoid common errors involving bearish targets, strikes, debit, volatility skew, liquidity, assignment and expiration.
Mistakes 1–3: construction
Do not open without a price target, choose strikes only by cheap debit or ignore the resulting breakeven. A far-OTM spread can require an unrealistic decline.
Mistakes 4–6: execution
Do not leg into the spread casually, rely on midpoint marks or ignore wide lower-strike put markets. Model realistic fills, commissions and slippage for opening and closing.
Mistakes 7–9: incomplete risk
Do not assume a volatility rise is guaranteed during a decline, overlook skew changes or ignore short-put assignment. Defined payoff does not eliminate operational risk.
Mistakes 10–12: management
Do not hold automatically for maximum profit, roll without counting total debit or close only one leg by mistake. Compare remaining reward with rebound and expiration risk.
A practical example
A trader buys a far-OTM narrow spread because its percentage return looks large, accepts a wide market and waits for expiration. Forecast, execution and time-decay errors compound.
This simplified example focuses on the spread at a specific moment and expiration outcome. Live option prices also reflect the underlying price, time decay, rates, dividends, liquidity and transaction costs. Greeks are theoretical estimates, not guarantees.
Frequently asked questions
What is the most common mistake?
Choosing strikes without a realistic downside target.
Does a market decline guarantee profit?
No. Size, timing, IV and entry debit matter.
Why check both legs after closing?
A partial fill can leave unintended long or short put exposure.
Continue the Bear Put Spreads cluster
Explore related guides: Bear Put Spread Explained: Strategy, Risk and Reward · How to Choose Bear Put Spread Strikes · Bear Put Spread Greeks: Delta, Gamma, Theta and Vega. For a structured sequence, use the free Level 10 – Bear Put Spread course.
Options involve risk and are not suitable for every investor. This material is educational and is not investment, tax or legal advice. Greeks are theoretical estimates, and contract terms and broker requirements can vary.