# GSK options activity and gamma

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

GSK plc American Depositary Shares (Each representing two Ordinary Shares). Health Care. Catalogue checked 2026-10-20.

Last held price $50.75, as of 2026-10-23T20:00:00.000Z, delayed price.

As of 2026-10-23T20:00:00.000Z, GSK has 47,075 standard-contract open interest across 8 expiries, -1.48% from the dated underlying price to the call wall. OI rank 61 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 |
| --- | --- |
| 80 | 0 |
| 75 | 0 |
| 70 | 0 |
| 65 | 0 |
| 62 | 0 |
| 61 | 0 |
| 60 | 262791 |
| 59 | 0 |
| 58 | 0 |
| 57 | 0 |
| 56 | 126 |
| 55 | 750381 |
| 54 | 988 |
| 53 | 40293 |
| 52 | 116931 |
| 51 | 171152 |
| 50 | 279897 |
| 49.5 | -2352 |
| 49 | -37181 |
| 48.5 | -3362 |
| 48 | -46477 |
| 47.5 | -163 |
| 47 | -113062 |
| 46 | -3371 |
| 45 | -118676 |
| 44 | 0 |
| 43 | -110 |
| 42 | 0 |
| 41 | 0 |
| 40 | 0 |
| 39 | 0 |
| 38 | 0 |
| 37 | 0 |
| 35 | 0 |
| 33 | 0 |
| 30 | 0 |
| 28 | 0 |
| 25 | 0 |
| 23 | 0 |
| 20 | 0 |

Sector peers: [AAPG](https://squawkflow.com/ticker/AAPG), [AARD](https://squawkflow.com/ticker/AARD), [ABBV](https://squawkflow.com/ticker/ABBV), [ABCL](https://squawkflow.com/ticker/ABCL), [ABEO](https://squawkflow.com/ticker/ABEO), [ABOS](https://squawkflow.com/ticker/ABOS), [ABSI](https://squawkflow.com/ticker/ABSI), [ABT](https://squawkflow.com/ticker/ABT)

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