# XLB options activity and gamma

Canonical: https://squawkflow.com/ticker/XLB

State Street Materials Select Sector SPDR ETF. ETFs. Catalogue checked 2026-10-20.

Last held price $51.30, as of 2026-10-23T20:00:00.000Z, delayed price.

As of 2026-10-23T20:00:00.000Z, XLB has 61,219 standard-contract open interest across 7 expiries, -0.58% from the dated underlying price to the call wall. OI rank 50 of 113 measured books with the same UTC source date; not a full-market ranking.

Source: delayed options data; quote 2026-10-23T20:00:00.000Z; chain 2026-10-23T20:00:00.000Z. OI-derived gamma estimate, calls positive and puts negative; 100-share standard roots only; dollars per 1% underlying move. Not observed dealer positions. Full-chain activity; at most 40 nearest gamma strikes.

Gamma by strike (40 rows, dollars per 1% move):

| Strike | Net gamma estimate |
| --- | --- |
| 64 | 650 |
| 63 | 0 |
| 62 | 0 |
| 61 | 0 |
| 60 | 0 |
| 59 | 0 |
| 58 | 0 |
| 57.5 | 0 |
| 57 | 0 |
| 56.5 | 0 |
| 56 | 14290 |
| 55.5 | 323 |
| 55 | 661536 |
| 54.5 | 0 |
| 54 | 159142 |
| 53.5 | 36738 |
| 53 | 365760 |
| 52.5 | 115629 |
| 52 | 612740 |
| 51.5 | 36941 |
| 51 | 2014464 |
| 50.5 | 6210 |
| 50 | 256399 |
| 49.5 | 5715 |
| 49 | -1219100 |
| 48.5 | -5533 |
| 48 | -609793 |
| 47.5 | -6370 |
| 47 | -958735 |
| 46.5 | -79968 |
| 46 | 77085 |
| 45.5 | -171 |
| 45 | -75 |
| 44.5 | 0 |
| 44 | -4207 |
| 43 | 0 |
| 42 | 0 |
| 41 | 0 |
| 40 | 0 |
| 39 | 0 |

Sector peers: [AAAU](https://squawkflow.com/ticker/AAAU), [AAPY](https://squawkflow.com/ticker/AAPY), [AAXJ](https://squawkflow.com/ticker/AAXJ), [ABFL](https://squawkflow.com/ticker/ABFL), [ACES](https://squawkflow.com/ticker/ACES), [ACIO](https://squawkflow.com/ticker/ACIO), [ACWI](https://squawkflow.com/ticker/ACWI), [ACWV](https://squawkflow.com/ticker/ACWV)

[Sector context](https://squawkflow.com/sector-rotation)