option-wall-analysislisted
Install: claude install-skill ssurmic/claude-investment-skills
# Option Wall Analysis — Reading the Order Book
## Goal
Use option chain data to predict **short-term price magnets** (next 1-4 weeks) by finding:
1. **Max pain** — strike where option holders lose most (= dealers profit most)
2. **Call walls** — high call OI = upside resistance (writers will defend)
3. **Put walls** — high put OI = downside support (writers will defend)
4. **Put/call ratio** — sentiment indicator
5. **Dealer gamma positioning** — how dealer hedging affects price
## Core Concepts (1-min crash course)
### What is "max pain"?
The strike price where **the most options expire worthless** = where option writers (dealers) profit the most.
**Theory**: As expiry approaches, dealers hedge their books, and the gravitational pull is toward max pain. Most reliable on **monthly OPEX (3rd Friday)** and **quarterly OPEX**.
### What's a "gamma wall"?
A strike with **massive OI** (e.g., 50,000+ contracts). At this strike:
- Dealers are short calls → they BUY stock as price rises (buying acts as resistance breaks higher)
- OR dealers are long calls → they SELL stock as price rises (acts as resistance)
**Practical reading**:
- **Highest call OI strike** = often **resistance** (writers defend)
- **Highest put OI strike** = often **support** (writers defend)
### What's "put/call ratio"?
- **Total Put OI / Total Call OI**
- > 1.0 = more puts than calls = bearish sentiment
- < 1.0 = more calls than puts = bullish sentiment
- **Contrarian indicator**: extreme >1.3 = capitula