This page reflects CTAS 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 — CTAS
Data as of market close May 20, 2026
Nearest listed expiration 2026-05-22 shows max pain at $165.00 (6.36 below spot). Use this page to evaluate pin-risk zones, strike pressure, and open-interest concentration before selecting trade structure.
Max Pain Strike
$165.00
Nearest expiry
Expected Move
±$1.10
±0.6%
Days to Expiry
2
Calendar days
Total Call OI
404
Nearest expiry
Total Put OI
137
Nearest expiry
P/C OI Ratio
0.34
Put-heavy
Spot Price
$171.36
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
$170.00
5/8/2026, 11:10:36 PM
2026-05-15
$177.50
5/15/2026, 11:10:57 PM
2026-05-22NextUpdated
$165.00
5/20/2026, 11:11:29 PM
2026-05-29
$175.00
5/20/2026, 11:11:29 PM
2026-06-05
$170.00
5/20/2026, 11:11:29 PM
2026-06-12
$170.00
5/20/2026, 11:11:29 PM
2026-06-18
$170.00
5/20/2026, 11:11:29 PM
2026-06-26
$165.00
5/20/2026, 11:11:29 PM
2026-07-17
$175.00
5/20/2026, 11:11:29 PM
2026-08-21
$175.00
5/20/2026, 11:11:29 PM
2026-09-18
$195.00
5/20/2026, 11:11:29 PM
2026-11-20
$175.00
5/20/2026, 11:11:29 PM
2026-12-18
$175.00
5/20/2026, 11:11:29 PM
2027-01-15
$180.00
5/20/2026, 11:11:29 PM
2027-03-19
$160.00
5/20/2026, 11:11:29 PM
Selected expiration: 2026-05-22 at max pain $165.00.
CTAS pain by strike for 2026-05-22 expiration
Strike
Call Pain
Put Pain
Total Pain
135
0
402250
402250
150
0
198250
198250
155
0
132250
132250
157.5
0
100000
100000
160
0
68000
68000
162.5
500
44500
45000
165
1000
23000
24000
167.5
46500
10250
56750
170
96000
3000
99000
172.5
156750
1500
158250
175
219750
0
219750
177.5
295750
0
295750
180
376750
0
376750
185
542750
0
542750
190
721750
0
721750
195
906750
0
906750
200
1107250
0
1107250
225
2112250
0
2112250
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.