Canadian National Railway CompaClose $126.55EOD only
Max Pain
$130.00
Next expiry Aug 21, 2026
Expected Move
±$2.65
2.1% from close
Price Gap
+3.45
Distance to max pain
IV Rank
16
Low premium
P/C OI
0.34
Slightly call-heavy
Consensus
—
No reports available
Published snapshot: Aug 18, 2026 close
End-of-day snapshot
This page reflects CNI 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 — CNI
Data as of market close Aug 18, 2026
Nearest listed expiration 2026-08-21 shows max pain at $130.00 (3.45 above spot). Use this page to evaluate pin-risk zones, strike pressure, and open-interest concentration before selecting trade structure.
Max Pain Strike
$130.00
Nearest expiry
Expected Move
±$2.65
±2.1%
Days to Expiry
3
Calendar days
Total Call OI
1,973
Nearest expiry
Total Put OI
1,233
Nearest expiry
P/C OI Ratio
0.62
Put-heavy
Spot Price
$126.55
Published close
Consensus
-
Open report for full read
Max Pain by Expiration
Pain by Strike
Drill into expiration
Selected: 2026-08-21
Expiration
Max Pain Strike
Last Updated
2026-06-18
$115.00
6/18/2026, 11:11:33 PM
2026-07-17
$110.00
7/17/2026, 11:10:06 PM
2026-08-21NextUpdated
$130.00
8/18/2026, 11:08:48 PM
2026-09-18
$135.00
8/18/2026, 11:08:48 PM
2026-10-16
$115.00
8/18/2026, 11:08:48 PM
2027-01-15
$110.00
8/18/2026, 11:08:48 PM
2027-03-19
$115.00
8/18/2026, 11:08:48 PM
Selected expiration: 2026-08-21 at max pain $130.00.
CNI pain by strike for 2026-08-21 expiration
Strike
Call Pain
Put Pain
Total Pain
65
0
7357500
7357500
70
0
6742000
6742000
75
0
6127000
6127000
90
0
4283500
4283500
95
0
3669500
3669500
100
0
3060500
3060500
105
500
2470000
2470500
110
2500
1908000
1910500
115
5500
1374000
1379500
120
15000
868500
883500
125
49500
386000
435500
130
128000
0
128000
135
571500
0
571500
140
1372000
0
1372000
145
2355500
0
2355500
150
3341000
0
3341000
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.