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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adviser; calls are impersonal, generated from SEC filings and a delayed/third-party price feed, and may be wrong or out of date.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›Butterfly spread (puts)

Butterfly spread (puts) calculator

neutral

Buy one put below, sell two at the middle strike, buy one above — the put-based mirror of the call butterfly. Cheap to open, with the payoff peaking exactly at the middle strike: a precision bet that the stock lands near a level at expiry.

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
$113
Max profit
$380
Max loss
−$113
Breakevens
96.13 / 103.87
Profit / loss at expiry
at expiry today (model)
48spot 100.00168
Delta
-0.1
shares-equivalent
Gamma
-1.44
Δ per $1
Theta / day
$1.79
time decay
Vega / 1%
−$3.54
per vol point
P&L by price and date (Black-Scholes, IV 30%)
pricetoday+4d+8d+11d+15d+19d+23d+26dexpiry
130.0-112-112-113-113-113-113-113-113-113
125.0-108-110-111-112-113-113-113-113-113
120.0-100-103-106-108-110-112-113-113-113
115.0-81-84-89-93-99-105-111-113-113
110.0-50-51-54-56-62-72-88-103-113
105.0-17-12-7-33890-113
100.0-1717264265102151387
95.0-18-13-9-5155-5-113
90.0-57-59-62-65-72-82-96-108-113
85.0-92-95-99-102-107-110-113-113-113
80.0-108-110-111-112-113-113-113-113-113
75.0-112-113-113-113-113-113-113-113-113
70.0-113-113-113-113-113-113-113-113-113

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
  • Bear put spread
  • Iron condor
  • Long straddle
  • Long strangle
  • Collar
  • Bull put spread
  • Bear call spread
  • Butterfly spread (calls)
  • Iron butterfly
  • Protective put
  • Short straddle
  • Short strangle
  • Call condor
  • Call ratio backspread
  • Put ratio backspread
  • Jade lizard

Common questions

When does a put butterfly pay best?
When the stock finishes exactly at the middle (short) strike at expiry. Max profit is the distance between adjacent strikes minus the small debit paid.
What is the max loss on a put butterfly?
The net debit paid, at either wing or beyond — the defining feature of a low-cost, defined-risk butterfly.
Put butterfly vs call butterfly?
At the same strikes they have essentially the same expiry payoff; the choice is usually driven by which options are more liquid or better priced. Both profit most when the stock pins the middle strike.

Research the underlying

An options position is a view on the company underneath. Our SEC-grounded verdicts, quality scores and filings coverage are free for every US-listed name.

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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.