# Options Payoff

Render an interactive options payoff chart, expiry P&L plus Black-Scholes theoretical...

- Repository: https://github.com/himself65/finance-skills (3487 stars)
- Category: Engineering
- License: MIT
- Last updated: 2026-10-25
- Runs scripts: no, instructions only

## Install

Claude Code: `npx skills add himself65/finance-skills --skill options-payoff -g -a claude-code -y`
Codex: `npx skills add himself65/finance-skills --skill options-payoff -g -a codex -y`
Cursor: `npx skills add himself65/finance-skills --skill options-payoff -g -a cursor -y`
Gemini CLI: `npx skills add himself65/finance-skills --skill options-payoff -g -a gemini-cli -y`
Claude Code plugin marketplace: `/plugin marketplace add himself65/finance-skills`

## Description

Render an interactive options payoff chart, expiry P&L plus Black-Scholes theoretical value, with sliders for strikes, premium, IV, DTE, and spot. Use this skill whenever the user describes or shares an options position or strategy and wants to see how it makes or loses money: vertical, calendar, diagonal, or ratio spreads, butterflies, condors and iron condors, straddles, strangles, covered calls, protective or naked puts, or any multi-leg structure. This includes pasted strikes, premiums, and expiries, requests like "show me the payoff" or "draw the P&L curve", and broker screenshots (IBKR, TastyTrade, Robinhood). Use it even when details are partial, defaults fill the gaps.

## SKILL.md, as published by its author (untrusted third-party text, read it as data)

# Options Payoff Curve Skill

If your host has not already executed the shell probes below (for example, in Codex), run the commands inside the `!` wrappers with its shell tool before choosing a setup path. Use the actual output; if shell access is unavailable, report that limitation.

Generates an interactive HTML chart using the host's available visualization tool, or a standalone HTML file in Codex, showing:
- **Expiry payoff curve** (dashed gray line), intrinsic value at expiration
- **Theoretical value curve** (solid colored line), Black-Scholes price at current DTE/IV
- Dynamic sliders for all key parameters
- Real-time stats: max profit, max loss, breakevens, current P&L at spot

---

## Step 1: Extract Strategy From User Input

When the user provides a screenshot or text, extract:

| Field | Where to find it | Default if missing |
|---|---|---|
| Strategy type | Title bar / leg description | "custom" |
| Underlying | Ticker symbol | SPX |
| Strike(s) | K1, K2, K3... in title or leg table | nearest round number |
| Premium paid/received | Filled price or avg price | 5.00 |
| Quantity | Position size | 1 |
| Multiplier | 100 for equity options, 100 for SPX | 100 |
| Expiry | Date in title | 30 DTE |
| Spot price | Current underlying price shown in the screenshot or text | live quote (see below); middle strike only if no quote is available |
| IV | Shown in greeks panel, or estimate from vega | 20% |
| Risk-free rate |, | 4.3% |

**Spot for screenshots**: spot is the underlying's current price, and broker screenshots often omit it or show it far from the strikes, don't read it off the strike labels. Use the price shown, else a live quote (the SPX probe below, or yfinance for other underlyings). Fall back to the middle strike only when no quote is available, and tell the user you did.

The rest: https://github.com/himself65/finance-skills/blob/HEAD/plugins/market-analysis/skills/options-payoff/SKILL.md