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adviser; calls are impersonal, generated from SEC filings and a delayed/third-party price feed, and may be wrong or out of date.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

Iron butterfly calculator

income

Sell an at-the-money straddle and buy an out-of-the-money put and call as wings. A large credit with defined risk — the income cousin of the iron condor, concentrated at the current price.

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 credit
$521
Max profit
$516
Max loss
−$279
Breakevens
94.79 / 105.21
Profit / loss at expiry
at expiry today (model)
46spot 100.00173
Delta
-0.4
shares-equivalent
Gamma
-3.24
Δ per $1
Theta / day
$3.94
time decay
Vega / 1%
−$7.99
per vol point
P&L by price and date (Black-Scholes, IV 30%)
pricetoday+4d+8d+11d+15d+19d+23d+26dexpiry
130.0-272-274-276-276-277-278-278-279-279
125.0-262-267-271-273-276-278-278-279-279
120.0-238-246-254-259-267-274-278-279-279
115.0-191-199-209-218-232-249-266-276-279
110.0-117-119-123-128-138-156-186-221-279
105.0-38-28-16-7620323521
100.0018395890134198272521
95.0-37-27-16-7721333521
90.0-130-133-139-145-157-177-206-237-279
85.0-216-224-234-242-253-265-274-278-279
80.0-261-266-270-273-276-277-278-279-279
75.0-274-275-276-277-278-278-278-279-279
70.0-276-276-277-277-278-278-278-279-279

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)
  • Protective put
  • Short straddle
  • Short strangle
  • Call condor
  • Butterfly spread (puts)
  • Call ratio backspread
  • Put ratio backspread
  • Jade lizard

Common questions

Iron butterfly vs iron condor?
The butterfly sells at-the-money (bigger credit, narrower profit zone); the condor sells out-of-the-money (smaller credit, wider zone). Same defined-risk wing structure.
What is the max profit on an iron butterfly?
The net credit, earned in full only if the stock pins the short strike at expiry; profits shrink toward the breakevens either side.
What is the max loss on an iron butterfly?
Wing width minus the credit, times 100 — hit when the stock finishes beyond either long wing.

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.