XLU Gamma Exposure (GEX)
Utilities Select Sector SPDR ETF · computed from open interest and end-of-day quotes as of 2026-07-10 · spot $45.41 · updated nightly
Net GEX by strike
■ positive (dealers dampen moves) ■ negative (dealers amplify moves) — strikes within ±15% of spot.
Gamma walls
| Strike | Net GEX / 1% | Share of total gamma | Distance from spot |
|---|---|---|---|
| $46 | $20M | 33.2% | 1.30% |
| $44 | −$8M | 13.4% | -3.11% |
| $47 | $5M | 8.6% | 3.50% |
| $46.5 | $5M | 7.9% | 2.40% |
| $45 | −$4M | 5.9% | -0.90% |
GEX by expiration
| Expiration | Net GEX / 1% | Absolute GEX |
|---|---|---|
| 2026-07-17 | $6M | $39M |
| 2026-07-24 | $963,570 | $2M |
| 2026-07-31 | $7M | $12M |
| 2026-08-07 | $1M | $2M |
| 2026-08-14 | −$174,902 | $225,778 |
| 2026-08-21 | −$401,308 | $5M |
What is gamma exposure?
When you buy an option, a market maker usually takes the other side and hedges by holding shares of XLU. As the price moves, the amount they must hold changes — that sensitivity is gamma. GEX aggregates it across all open contracts (calls positive, puts negative, per the standard dealer-positioning convention) into a dollar figure per 1% move.
In a positive gamma regime, dealers sell into rallies and buy dips — mechanically dampening volatility. In negative gamma, hedging flows push in the same direction as the market, amplifying moves. The gamma flip ($45 right now) is the estimated price where the regime switches, and large single-strike concentrations ("gamma walls") often act like short-term magnets or barriers. These are estimates built on simplified assumptions — positioning context, not predictions. Full explainer: what is GEX?
More XLU options data
See the XLU max pain dashboard for the expiry-pinning view of the same open interest , or check which ETFs overlap with XLU if you hold it as a fund.
GEX for other tickers
GEX is computed nightly from end-of-day open interest and quotes using a Black-Scholes approximation (r=0, q=0), matching common retail GEX conventions (methodology). Derived metrics only — not raw market data, not investment advice.