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Research & education only — not financial advice.TENK is not a registered investment adviser; calls are impersonal, generated from SEC filings and a delayed/third-party price feed, and may be wrong or out of date. The operator and an affiliated trading operation may hold or trade the securities TENK rates — see Disclosures. Do your own research.

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TTENK/calls
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Home›Options calculator›Bear put spread

Bear put spread calculator

bearish

Buy a put and sell a lower-strike put, same expiry. A defined-risk bearish position: cheaper than a bare put, with profit capped at the lower strike.

Underlying (optional)
Market inputs

Premiums start as Black-Scholes model values — overwrite them with your broker’s real quotes for exact numbers.

Legs
1 contract = 100 shares
Net debit
$285
Max profit
$715
Max loss
−$285
Breakeven
97.15
Profit / loss at expiry
at expiry today (model)
45spot 100.00160
Delta
-37.1
shares-equivalent
Gamma
2.65
Δ per $1
Theta / day
−$2.80
time decay
Vega / 1%
$6.54
per vol point
P&L by price and date (Black-Scholes, IV 30%)
pricetoday+4d+8d+11d+15d+19d+23d+26dexpiry
130.0-285-285-285-285-285-285-285-285-285
125.0-284-284-285-285-285-285-285-285-285
120.0-280-282-283-284-285-285-285-285-285
115.0-267-272-277-280-283-284-285-285-285
110.0-232-242-253-260-270-278-283-285-285
105.0-150-165-181-195-215-237-261-277-285
100.00-12-26-39-60-87-124-162-285
95.0212212212212212212212212215
90.0434447462476498525562600715
85.0600614630643662681700711715
80.0682689697702708712714715715
75.0707709711712713714714715715
70.0711712712713713714714715715

Dollar P&L for the whole position. Pre-expiry cells are model values (constant IV); real marks will differ with volatility and skew.

Other strategies

  • Long call
  • Long put
  • Covered call
  • Cash-secured put
  • Bull call spread
  • Iron condor
  • Long straddle
  • Long strangle
  • Collar

Common questions

What is the max profit on a bear put spread?
(Width between strikes − net debit) × 100, reached at or below the lower strike at expiry.
What is the max loss?
The net debit paid, if the stock finishes at or above the upper strike.
Bear put spread vs long put?
The spread costs less and decays slower, but gives up profits below the short strike. A bare put keeps the full downside payoff.

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Educational model, not trade advice. Options involve substantial risk and are not suitable for every investor — read the OCC’s Characteristics and Risks of Standardized Options. Model values use Black-Scholes with your inputs (constant volatility, European exercise, no dividends) and will differ from live market prices.

Research and education only — not financial advice. TENKis not a registered investment adviser or broker-dealer and gives no personalized advice. Every call is impersonal — identical for all users, generated on a schedule from SEC filings plus a delayed/third-party price feed — may be wrong or out of date, and is not a recommendation to buy or sell any security. The operator and an affiliated trading operation may hold or trade the securities TENK rates; see Disclosures. Past performance does not guarantee future results. Do your own research.