This page reflects GSK options positioning from the latest published market-close snapshot. Intraday price and contract changes are not displayed.
Published Snapshot
May 20, 2026 close
Max Pain — GSK
Data as of market close May 20, 2026
Nearest listed expiration 2026-05-22 shows max pain at $51.00 (0.22 above spot). Use this page to evaluate pin-risk zones, strike pressure, and open-interest concentration before selecting trade structure.
Max Pain Strike
$51.00
Nearest expiry
Expected Move
±$0.95
±1.9%
Days to Expiry
2
Calendar days
Total Call OI
2,846
Nearest expiry
Total Put OI
340
Nearest expiry
P/C OI Ratio
0.12
Put-heavy
Spot Price
$50.78
Published close
Consensus
-
Open report for full read
Max Pain by Expiration
Pain by Strike
Drill into expiration
Selected: 2026-05-22
Expiration
Max Pain Strike
Last Updated
2026-05-08
$50.00
5/8/2026, 11:15:47 PM
2026-05-15
$55.00
5/15/2026, 11:17:58 PM
2026-05-22NextUpdated
$51.00
5/20/2026, 11:15:59 PM
2026-05-29
$53.00
5/20/2026, 11:15:59 PM
2026-06-05
$52.00
5/20/2026, 11:15:59 PM
2026-06-12
$51.00
5/20/2026, 11:15:59 PM
2026-06-18
$50.00
5/20/2026, 11:15:59 PM
2026-06-26
$49.00
5/20/2026, 11:15:59 PM
2026-07-17
$50.00
5/20/2026, 11:15:59 PM
2026-08-21
$45.00
5/20/2026, 11:15:59 PM
2026-11-20
$45.00
5/20/2026, 11:15:59 PM
2027-01-15
$42.00
5/20/2026, 11:15:59 PM
Selected expiration: 2026-05-22 at max pain $51.00.
GSK pain by strike for 2026-05-22 expiration
Strike
Call Pain
Put Pain
Total Pain
35
0
520650
520650
39
0
389050
389050
40
0
356750
356750
42
0
292350
292350
44
0
227950
227950
45
0
196150
196150
46.5
0
148900
148900
47
0
133300
133300
47.5
0
117800
117800
48
0
102400
102400
48.5
0
87150
87150
49
0
72000
72000
49.5
0
60200
60200
50
200
49500
49700
51
1800
33800
35600
52
23400
20000
43400
53
279800
7900
287700
54
543800
2200
546000
56
1072400
1200
1073600
57
1351900
1000
1352900
How to Read Max Pain
Compare pin-risk and strike-pressure across expirations from the latest published close.
What max pain measures
Max pain is the strike where option holders would collectively lose the most at expiration, based on open interest across the listed chain.
How traders use it
It is most useful as a possible pinning zone, especially when spot is already trading near a crowded strike into expiration.
What can break it
Strong directional flows, news, or fast spot moves can overwhelm any pinning tendency, so max pain should support a thesis rather than drive it alone.
The closer you are to expiration, the more useful this becomes as context and the less useful it is as a standalone prediction.