West Pharmaceutical Services, IClose $305.50EOD only
Max Pain
$290.00
Next expiry Jun 18, 2026
Expected Move
±$23.30
7.6% from close
Price Gap
-15.50
Distance to max pain
IV Rank
1
Low premium
P/C OI
1.47
Slightly put-heavy
Consensus
—
No reports available
Published snapshot: May 20, 2026 close
End-of-day snapshot
This page reflects WST 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 — WST
Data as of market close May 20, 2026
Nearest listed expiration 2026-06-18 shows max pain at $290.00 (15.50 below spot). Use this page to evaluate pin-risk zones, strike pressure, and open-interest concentration before selecting trade structure.
Max Pain Strike
$290.00
Nearest expiry
Expected Move
±$23.30
±7.6%
Days to Expiry
29
Calendar days
Total Call OI
833
Nearest expiry
Total Put OI
1,774
Nearest expiry
P/C OI Ratio
2.13
Put-heavy
Spot Price
$305.50
Published close
Consensus
-
Open report for full read
Max Pain by Expiration
Pain by Strike
Drill into expiration
Selected: 2026-06-18
Expiration
Max Pain Strike
Last Updated
2026-04-17
$240.00
4/17/2026, 11:29:53 PM
2026-05-15
$270.00
5/15/2026, 11:48:20 PM
2026-06-18NextUpdated
$290.00
5/20/2026, 11:38:58 PM
2026-09-18
$290.00
5/20/2026, 11:38:58 PM
2026-12-18
$270.00
5/20/2026, 11:38:58 PM
2027-01-15
$300.00
5/20/2026, 11:38:58 PM
Selected expiration: 2026-06-18 at max pain $290.00.
WST pain by strike for 2026-06-18 expiration
Strike
Call Pain
Put Pain
Total Pain
135
0
24044000
24044000
140
0
23157000
23157000
145
0
22270000
22270000
150
0
21383000
21383000
160
0
19610000
19610000
180
0
16068000
16068000
185
0
15185000
15185000
190
500
14302000
14302500
195
1000
13419500
13420500
200
1500
12537000
12538500
210
4500
10776000
10780500
220
13500
9023000
9036500
230
22500
7276000
7298500
240
31500
5541000
5572500
250
61500
4047000
4108500
260
132500
2694000
2826500
270
255500
1838000
2093500
280
386500
1027000
1413500
290
537500
334000
871500
300
895500
117000
1012500
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.