thetaOwl

WSO

Watsco, Inc.Close $313.65EOD only
Max Pain
$320.00
Next expiry Aug 21, 2026
Expected Move
±$10.35
3.3% from close
Price Gap
+6.35
Distance to max pain
IV Rank
38
Middle-high premium
P/C OI
0.38
Slightly call-heavy
Consensus
No reports available
Published snapshot: Aug 18, 2026 close
End-of-day snapshot

This page reflects WSO options positioning from the latest published market-close snapshot. Intraday price and contract changes are not displayed.

Published Snapshot
Aug 18, 2026 close
Max Pain — WSO
Data as of market close Aug 18, 2026

Nearest listed expiration 2026-08-21 shows max pain at $320.00 (6.35 above spot). Use this page to evaluate pin-risk zones, strike pressure, and open-interest concentration before selecting trade structure.

Max Pain Strike
$320.00
Nearest expiry
Expected Move
±$10.35
±3.3%
Days to Expiry
3
Calendar days
Total Call OI
2,113
Nearest expiry
Total Put OI
1,843
Nearest expiry
P/C OI Ratio
0.87
Put-heavy
Spot Price
$313.65
Published close
Consensus
-
Open report for full read

Max Pain by Expiration

Pain by Strike

Drill into expiration
Selected: 2026-08-21
ExpirationMax Pain StrikeLast Updated
2026-06-18$380.006/18/2026, 11:38:41 PM
2026-07-17$390.007/17/2026, 11:41:13 PM
2026-08-21NextUpdated$320.008/18/2026, 11:38:51 PM
2026-09-18$330.008/18/2026, 11:38:51 PM
2026-11-20$300.008/18/2026, 11:38:51 PM
2027-02-19$330.008/18/2026, 11:38:51 PM
Selected expiration: 2026-08-21 at max pain $320.00.
WSO pain by strike for 2026-08-21 expiration
StrikeCall PainPut PainTotal Pain
19002780700027807000
19502688550026885500
20002596400025964000
21002414000024140000
22002233200022332000
23002052400020524000
24001871600018716000
25001692500016925000
26001513900015139000
27001337600013376000
28001161600011616000
290100098790009880000
300200081620008164000
310600064950006501000
32093600048450005781000
330281000032220006032000
340469300024140007107000
350658200016120008194000
36085200008110009331000
370104640001000010474000
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.