Bear Put Spread

A bear put spread is a vertical spread strategy that involves buying a put option at a higher strike price and simultaneously selling a put option at a lower strike price, both with the same expiration date. This creates a debit spread that profits when the underlying stock declines. It's also called a "long put spread" or "put debit spread."

When to Use a Bear Put Spread

Bear put spreads work best when:

• You're moderately bearish (expect a decline, but not a crash)
• Implied volatility is elevated (selling the lower strike offsets expensive premiums)
• You want defined risk with less capital than buying puts outright
• You have a downside price target in mind

The Setup

• Max Profit: Width of strikes minus net debit paid (achieved if stock closes at or below the short strike)
• Max Loss: Net debit paid (if stock closes at or above the long strike)
• Breakeven: Long strike - net debit paid
• Delta profile: Net negative delta, profits from downward moves

Example

Stock trading at $100. You buy the $100 put for $5 and sell the $95 put for $2:

• Net debit: $3 ($300 per contract)
• Max profit: $5 - $3 = $2 ($200 per contract)
• Max loss: $3 ($300 per contract)
• Breakeven: $97

Bear Put Spread vs. Long Puts

Compared to buying long puts outright, the bear put spread:

• Costs less: Selling the lower strike reduces premium outlay
• Caps your profit: You give up gains below the short strike
• Reduces vega exposure: Less sensitive to IV changes
• Higher breakeven: Easier for the trade to profit

The trade-off mirrors the bull call spread: you sacrifice maximum profit potential for reduced cost and defined risk. If you expect a stock to collapse to zero, long puts capture more profit. If you expect a measured decline to support levels, the spread is more efficient.

Comparing to Credit Spreads

A bear put spread (debit) has a similar payoff profile to a bear call spread (credit). The main differences are execution and cash flow — debit spreads pay upfront, credit spreads collect upfront. In high IV environments, credit spreads may offer better risk/reward, while in low IV environments, debit spreads can be more attractive.

Common Mistakes

1. Buying during panic: Put premiums spike when stocks drop sharply; you may overpay
2. Wrong strike width: Too narrow limits profit; too wide requires a bigger move
3. Ignoring theta decay: Like all debit spreads, time works against you
4. Fighting the trend: Bear put spreads in strong uptrends often lose

Bear put spreads provide a capital-efficient way to express a bearish view while knowing exactly how much you can lose from the start.