OPCIONARIO Options Encyclopedia
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Bearish

Bear Put Spread

Buying an ITM put and selling a lower OTM put to cut cost while positioning for a decline.

Max GainCapped (Strike Width − Net Debit)
Max LossNet Debit Paid
Break-evenPurchased Strike − Net Debit
TypeDebit
Ideal IV environmentLow to moderate IV — net vega is positive but small; getting direction right matters more

Profit / Loss Diagram

Bear Put Spread at expiration

Strike Largo Strike Corto Ganancia Máx Pérdida Máx

What is this strategy?

The Bear Put Spread is a two-leg bearish strategy combining the purchase of a put at a lower strike with the sale of a put at a higher strike. It is the bearish equivalent of the Bull Call Spread. It reduces the cost of entry compared with a plain Long Put, though it also caps maximum gains. It suits bearish traders expecting a moderate decline with limited capital.

The structure is inversely symmetric to the Bull Call Spread: you buy a put at the higher strike — the long leg expressing the bearish thesis — and sell a put at the lower strike — the short leg that cheapens entry — both with identical expiration. The net debit is your maximum potential loss. Maximum gain is the strike width minus the net debit, reached if the underlying closes below the sold strike.

The Bear Put Spread is an excellent strategy for traders expecting a price decline but not a catastrophic one. It requires a moderate to significant downward move but does not need the underlying to approach zero. It is popular among income-oriented traders who prefer a balanced risk-reward. Breakeven is calculated by subtracting the net debit from the short strike.

Construction

ActionInstrumentStrikeExpirationExample
BUY1 PutATM or slightly ITM30-60 DTE+1 AAPL Jun 175 Put @ $8.00
SELL1 PutOTM (5-10% below)Same Expiration-1 AAPL Jun 165 Put @ $3.00

Example

Scenario: AAPL trades at $173. You are bearish and expect it to fall to $160–165 within two months.

  • Long Put Purchased +1 AAPL Jun 175 Put @ $8.00
  • Short Put Sold -1 AAPL Jun 165 Put @ $3.00
  • Net Debit $500 (8.00 − 3.00 = 5.00 paid × 100)
  • Maximum Gain $500 (175−165 strike width − $500 net debit)
  • Maximum Loss $500 (net debit paid)
  • Breakeven $170.00 (175 purchased strike − 5 net debit)
  • Profit if AAPL = $160 $500 maximum (capped by the sold strike)

The Greeks

δDelta — Moderately Negative

The long put carries negative delta, the short put positive. Net is negative but smaller in magnitude than a plain Long Put — roughly −0.30 to −0.50.

θTheta — Slightly Negative

The long put loses more value than the short one generates. Theta works slightly against you, but less than on a pure Long Put.

νVega — Moderately Positive

The long put carries higher positive vega, the short lower negative vega. Net is positive but reduced; it benefits from rising volatility.

γGamma — Moderately Positive

The long put has positive gamma, the short negative. Net is positive but limited by the short put.

Position Management

  1. 01
    Take Profits at 50–75% If the position captures 50–75% of maximum potential ($250–375 of $500), close both legs. There is no need to wait for expiration to bank the gain.
  2. 02
    Set a Defensive Stop Loss If you are down 50% of the debit ($250 of $500), close the position. Limiting losses matters more than waiting for a recovery.
  3. 03
    Manage Potential Assignment If assigned on the short put, you own 100 shares. Decide: hold and sell covered calls, exit, or exercise your long put.
  4. 04
    Roll Down If price falls significantly, close the current position and open a new spread at lower strikes to capture further downside.
  5. 05
    Monitor Implied Volatility Rises in IV benefit the position (positive vega). In high-volatility markets this structure is more attractive. Consider closing if IV collapses.

Frequently Asked Questions

Is it better than buying a put outright?
It depends on the scenario. The spread cheapens the debit and reduces the impact of time decay, in exchange for capping the gain at the sold strike. If you expect a moderate, measurable decline, the spread is more efficient; if you expect a collapse, the plain put captures the whole move.
How does implied volatility affect it?
Less than you might think, because the two legs largely offset. Net vega is slightly positive, so a volatility expansion helps somewhat, but the determining factor is getting direction and timing right, not volatility.
Can it hedge a portfolio?
Yes, and more cheaply than buying outright puts, though with one important difference: the protection is capped at the lower strike. It covers moderate corrections but leaves the part of a collapse beyond that level unprotected — which is exactly the part that does the most damage.
What happens if I am assigned on the short put?
You are obliged to buy 100 shares at the short strike, but your long put remains alive and protects that position. In practice it is enough to exercise the long put or close the whole structure: the spread’s maximum loss does not change because of early assignment.