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Double Diagonal Calculator

A diagonal on the call side and another on the put side at once.

The stock

Everything else is measured against this price.

Enter a ticker to pull the live stock price automatically.

Site default

Filled from the live quote when you enter a ticker. You can still edit it.

Where you think the stock will be. Adds a marker to the chart.

Today, unless you are modelling a past or future entry.

The contracts

Premiums are per share, the way they are quoted. One contract covers 100 shares.

  • Short put (near)You receive

    Calculated by a model

    Model estimate, not a quote

    45 days

    100 shares of exposure

    Leave blank and it is solved from the premium you entered.

  • Short call (near)You receive

    Calculated by a model

    Model estimate, not a quote

    45 days

    100 shares of exposure

    Leave blank and it is solved from the premium you entered.

  • Long put (far)You pay

    Calculated by a model

    Model estimate, not a quote

    135 days

    100 shares of exposure

    Leave blank and it is solved from the premium you entered.

  • Long call (far)You pay

    Calculated by a model

    Model estimate, not a quote

    135 days

    100 shares of exposure

    Leave blank and it is solved from the premium you entered.

Rates, dividends and costs4.00% rate · 0.00% yield
Site default

Roughly the Treasury yield matching your expiration.

Annual, continuous. Raises put values and lowers call values.

Charged per leg, both to open and to close.

Per contract. Usually a few cents.

Per share, applied against you on entry.

Theoretical ModePremiums on this page were generated by the Black-Scholes-Merton model from the volatility and rate you supplied. They are not quotes, and no contract is being offered at these prices.Theoretical

Profit and loss

The solid line is the exact payoff at expiration. Move the sliders to see the position before then.

Profit and loss at 2026-09-19 (nearest expiration), from a stock price of 72.75 to 127.25. Profit ranges from −$980.53 to +$343.78.-$1,000-$500$080.0090.00100.00110.00120.00

Hover, tap or use arrow keys to read the curve

  • At 2026-09-19 (nearest expiration)
  • Today (model estimate)
  • Breakeven
  • Current price
Profit and loss at 2026-09-19 (nearest expiration), from a stock price of 72.75 to 127.25. Profit ranges from −$980.53 to +$343.78.
Stock priceProfit or loss
72.75−$980.53
75.02−$931.81
77.29−$868.23
79.56−$788.18
81.83−$690.44
84.10−$574.27
85.92−$467.84
88.19−$317.89
90.46−$149.37
92.30$0.00
94.55+$199.65
96.37+$236.41
98.64+$241.51
100.91+$263.36
103.18+$301.57
105.00+$343.78
107.27+$183.72
109.54+$38.57
111.35−$66.94
113.63−$186.10
115.44−$271.67
117.71−$367.10
119.98−$450.53
122.25−$522.88
124.53−$585.13
126.80−$638.25
Aug 5, 2026 · 45d left

Drag towards expiration to watch time value drain out of the position.

As entered

Shifts every leg's implied volatility. Changes the Greeks and every date before expiration.

Result

Measured at Sep 19, 2026 · 45 days to expiration

Theoretical
Maximum lossCalculated by a model

-$980.53

The worst case at expiration, including fees.

Maximum profitCalculated by a model

$343.78

The best case at expiration, including fees.

Net credit receivedYou entered this

$1.40

Paid into your account when the position is opened.

BreakevenCalculated by a model

92.30 · 110.18

The position is profitable between these prices.

Cash requiredCalculated by a model

$980.53

Defined-risk credit positions are usually held against the maximum loss. Your broker may require more.

Commissions and feesYou entered this

$2.60

To open. Closing costs are not included.

At today's priceCalculated by a model

+$252.64

If the stock finished expiration exactly where it is now.

Target price

Not set

Enter one to see the profit at a specific price.

Probability

Model estimates, not forecasts. The assumptions behind each number are stated in full.

Chance of any profitCalculated by a model

59.8%

Assumes a lognormal terminal price (geometric brownian motion), the same distribution black-scholes assumes with volatility of 30.0% and risk-neutral drift. Real returns have fatter tails than this model assumes, and volatility itself changes. Other tools quote different numbers mainly because they assume a different volatility or a different expected drift.

Greeks

How the position responds to price, time, volatility and rates, for the whole position rather than a single contract.

delta
5.32
share equivalents
How many shares this position behaves like. A delta of 50 gains roughly $50 for every $1 the stock rises.
gamma
−3.6579
delta per $1 move
How quickly delta changes. High gamma means the position gets directional fast as the stock moves.
theta
4.45
dollars per day
What time decay costs or earns each calendar day, if nothing else changes.
vega
9.22
dollars per 1% of volatility
What a one percentage point change in implied volatility is worth to this position.
rho
2.87
dollars per 1% of rates
What a one percentage point change in interest rates is worth. Usually the smallest of the five.

This position has legs expiring on different dates, so the figures below are measured at the nearest expiration with the later legs valued by the pricing model.

The later legs still hold time value on that date. Their actual worth will depend on implied volatility at the time.

Profit table

Every combination of price and date, so you can see the position from any angle at once.

Profit / loss ($) by stock price and date. Rows are stock prices, columns are dates, and the final column is expiration.
Stock priceAug 5, 2026estimateAug 28, 2026estimateSep 19, 2026estimateOct 12, 2026estimateNov 3, 2026estimateNov 26, 2026estimateExpirationDec 18, 2026
125.00−$491.81−$534.39−$596.96−$697.10−$800.66−$917.77−$998.60
122.50−$431.18−$466.44−$530.09−$635.62−$747.24−$881.72−$998.60
120.00−$366.32−$389.92−$451.10−$560.82−$678.68−$827.69−$998.60
117.50−$298.76−$305.93−$358.69−$471.12−$592.70−$750.84−$998.60
115.00−$230.69−$216.85−$251.64−$365.11−$487.40−$647.15−$998.60
112.50−$164.98−$126.58−$128.80−$241.58−$361.42−$514.29−$748.60
110.00−$105.11−$40.62+$10.83−$99.64−$214.13−$352.32−$498.60
107.50−$54.98+$34.26+$168.11+$61.31−$45.63−$163.77−$248.60
105.00−$18.69+$90.75+$343.78+$241.59+$143.32+$46.88+$1.40
102.50−$0.05+$121.96+$288.45+$191.30+$101.57+$24.35+$1.40
100.00now−$2.20+$122.53+$252.64+$160.50+$77.92+$13.90+$1.40
97.50−$27.07+$89.46+$236.84+$149.31+$71.64+$12.60+$1.40
95.00−$75.02+$22.89+$241.57+$158.08+$82.80+$20.22+$1.40
92.50−$144.55−$73.59+$17.37−$62.53−$137.43−$210.18−$248.60
90.00−$232.30−$192.93−$185.18−$261.56−$336.88−$422.38−$498.60
87.50−$333.35−$325.51−$365.55−$437.85−$512.73−$608.10−$748.60
85.00−$441.69−$460.79−$523.30−$590.32−$662.23−$759.30−$998.60
82.50−$551.04−$589.34−$658.27−$718.31−$783.57−$871.25−$998.60
80.00−$655.57−$704.34−$770.75−$821.88−$876.61−$944.93−$998.60
77.50−$750.61−$802.14−$861.60−$902.11−$943.28−$987.03−$998.60
75.00−$832.99−$881.72−$932.32−$961.15−$987.44−$1,007.43−$998.60

Every column before expiration is a model estimate that assumes implied volatility stays where it is today. Only the expiration column is arithmetic rather than a forecast.

Notes on the double diagonal

  • Results depend heavily on the implied volatility of the far legs at the near expiration.
Max loss
-$980.53
Max profit
$343.78
Breakeven
92.30 · 110.18

How a double diagonal works

You sell a near-dated strangle and buy a wider, later-dated strangle. It profits from the near legs decaying while the far legs retain value.

When traders use it

When you expect a quiet period followed by continued uncertainty.