Gamma exposure / UNH
UNH gamma exposure
Dealer hedging is positioned to add to moves.
UNH is at 374, 4.32% below its gamma flip at 390.16. In negative gamma, dealer hedging tends to push with moves instead of against them, so moves can run further.
The call wall is 400 and the put wall is 370. The king node, the strike where dealer hedging is most concentrated, is 370.
As of 4:14 PM ET, Tue Sep 29. The live map refreshes through the trading day.
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The numbers
| Price | 374 |
|---|---|
| Gamma regime | Negative gamma |
| Gamma flip | 390.16+4.32% |
| Call wall | 400+6.95% |
| Put wall | 370-1.07% |
| King node | 370-1.07% |
| Total dealer gamma | -$0.06bn per 1% move |
Common questions
- Is UNH in positive or negative gamma right now?
- Negative gamma. As of 4:14 PM ET, Tue Sep 29, UNH is at 374, 4.32% below its gamma flip at 390.16. In negative gamma, dealer hedging tends to push with moves instead of against them, so moves can run further.
- Where is UNH's gamma flip?
- At 390.16, +4.32% from the price of 374. The flip is the price where total dealer gamma crosses zero: positive gamma above it, negative below.
- What are UNH's call wall and put wall?
- The call wall is 400 and the put wall is 370. The call wall is the strike above the price with the largest positive dealer gamma; the put wall is the strike below it with the largest negative dealer gamma. They mark where hedging pressure tends to lean against price.
- What is UNH's king node?
- 370. It's the strike with the largest absolute dealer gamma, where hedging is most concentrated.
How it's calculated
Levels come from the UNH options chain (expiries out to 45 days, strikes within 18% of the price), modeled with the industry-standard convention that dealers are long calls and short puts. It's a model of positioning, not a measurement. Full formulas are on the methodology page.