# Put Ladder: Moderate-Decline Profit and Severe Downside Risk

Analyze a 1-by-1-by-1 put ladder, its piecewise payoff and two breakevens, and the substantial downside, assignment, margin, and execution risks.

Canonical: https://wiki.fcontext.com/options/put-ladder/
Fact checked: 2026-07-22

> For educational purposes only; not investment advice.

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## Direct answer

In this article, a **put ladder** means three puts with one expiration and descending strikes: buy one put at `K₁`, sell one at `K₂`, and sell one at `K₃`, where `K₁ > K₂ > K₃`. It is a bear put spread plus an additional lower-strike short put.

The extra short put can reduce the entry cost, but it removes the bear spread's defined downside risk. The position can profit from a moderate decline into the middle strike region, then loses value dollar for dollar below the lowest strike. For an equity whose price cannot fall below zero, the loss is large but bounded by zero; it is not unlimited.

“Put ladder” is not a perfectly standardized name. Some platforms reverse the legs or use four legs. Analyze the signed quantity, strike, expiration, settlement, and net premium of every leg rather than relying on the label.

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## Piecewise expiration payoff

For one long `K₁` put, one short `K₂` put, one short `K₃` put, and net debit `D`, expiration profit per share is:

`Π(S_T) = max(K₁−S_T,0) − max(K₂−S_T,0) − max(K₃−S_T,0) − D`

- `S_T ≥ K₁`: all puts expire worthless; loss equals `D`.
- `K₂ ≤ S_T < K₁`: profit rises as the underlying falls; upper breakeven is `K₁ − D`.
- `K₃ ≤ S_T < K₂`: the first vertical is fully valuable and the lowest put remains out of the money; profit is `K₁ − K₂ − D`.
- `S_T < K₃`: profit is `K₁ − K₂ − K₃ + S_T − D`, so it falls one dollar for every further dollar of decline. The lower breakeven is `K₂ + K₃ − K₁ + D`.

These breakevens assume a debit `D` and that they fall in the stated regions. For a net credit, use a negative `D`. Before expiration, volatility, skew, time, interest rates, dividends, and executable quotes can make mark-to-market results differ sharply from this expiration diagram.

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## A 100/95/90 put ladder

Assume the stock is near `100`. Buy one `100` put, sell one `95` put, sell one `90` put, and pay a `1.00` net debit. With the standard 100-share multiplier, expiration results before fees are:

| Stock at expiration | Option payoff per share | Profit/loss per share | Position profit/loss |
| ---: | ---: | ---: | ---: |
| `110` or `100` | `0` | `−1` | `−$100` |
| `99` | `1` | `0` | `$0` |
| `95` | `5` | `4` | `+$400` |
| `90` | `5` | `4` | `+$400` |
| `86` | `1` | `0` | `$0` |
| `80` | `−5` | `−6` | `−$600` |
| `0` | `−85` | `−86` | `−$8,600` |

The upper and lower breakevens are `99` and `86`. Maximum expiration profit is `4.00` per share, or `$400`, throughout the `90` to `95` plateau. Maximum loss occurs if the stock reaches zero: `86.00` per share, or `$8,600`. The attractive `$100` entry debit therefore does not describe the position's economic risk.

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## Risk and implementation checklist

- Verify all three leg signs, one shared expiration, the contract multiplier, and whether the trade is a debit or credit.
- Stress test zero and prices well below `K₃`; the long put spread is capped at `K₁ − K₂`, while the extra short put keeps losing.
- Reserve cash and buying power for assignment of either short put. Broker margin is a collateral rule, not the maximum possible loss.
- American-style equity puts may be assigned before expiration. Assignment can create stock and leave a different residual option position.
- Plan for expiration and pin risk around both short strikes, including exercise decisions made after the regular close.
- Use a multi-leg limit order. Separate fills can temporarily create an uncovered short put, and quoted midpoints may not be executable.
- Include commissions, fees, wide spreads, volatility skew, and changing margin in any pre-expiration exit plan.
- Buying another still-lower-strike put can cap the downside, but it creates a different four-leg structure with different cost and breakevens.

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## Common misconceptions

- “A put ladder is always the same trade.” The label varies; the legs define the exposure.
- “It contains a bear put spread, so risk is limited.” The additional short put reopens downside risk.
- “A credit entry makes the trade safe.” A small credit can coexist with a very large loss near zero.
- “Maximum profit occurs only at one price.” In this 1:1:1 structure it spans the interval from `K₃` through `K₂`.
- “The higher long put covers both short puts.” One long put cannot fully offset two short puts below all strikes.
- “The expiration graph predicts today's P/L.” Interim value also depends on volatility, time, rates, dividends, and liquidity.

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## Related topics

- [Bear Put Spread](/options/bear-put-spread/)
- [Assignment Risk](/options/assignment-risk/)
- [Physical Settlement](/options/physical-settlement/)
- [Broken-Wing Butterfly](/options/broken-wing-butterfly/)

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## Authoritative sources

- [Characteristics and Risks of Standardized Options](https://www.theocc.com/company-information/documents-and-archives/options-disclosure-document) - Options Clearing Corporation
- [Options](https://www.finra.org/investors/investing/investment-products/options) - FINRA
- [Options Institute](https://www.cboe.com/optionsinstitute/) - Cboe