SourcePut open interest divided by call open interest
As ofCboe delayed snapshot Nov 9, 9:38 PM ET
How19 put contracts / 40 call contracts = 0.47 for the 2026-11-20 expiration. Open interest is published once a day, before the open, so it describes the previous session.
Too thin to read: 59 open contracts across 13 strikes. Max pain, walls and gamma print from 100 contracts across 5 strikes.
Open interest by strike · Fri, Nov 20
■ calls (up)■ puts (down)PIT open contracts per strike for Fri, Nov 20.
Open-interest change: building vs unwinding
Needs two observed snapshot days for this expiration; the comparison appears automatically once the next weekday snapshot lands. We diff real observations only; nothing is estimated.
Volume by strike · Fri, Nov 20
Implied volatility by strike · Fri, Nov 20
— call IV— put IVATM ≈ 37.8% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Greeks by strike · Fri, Nov 20
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.92
-0.08
65
0.0136
0.02
-0.08
-0.09
0.90
-0.08
67
0.0171
0.02
-0.08
-0.10
0.78
-0.09
74
0.0457
0.04
-0.09
-0.23
0.74
-0.09
75
0.0538
0.04
-0.09
-0.26
0.69
-0.09
76
0.0633
0.05
-0.09
-0.31
0.39
-0.08
80
0.0819
0.05
-0.08
-0.61
0.33
-0.08
81
0.0731
0.05
-0.08
-0.68
0.27
-0.08
82
0.0634
0.05
-0.08
-0.73
0.20
-0.08
84
0.0470
0.04
-0.08
-0.80
0.18
-0.07
85
0.0408
0.04
-0.07
-0.83
0.16
-0.07
86
0.0357
0.03
-0.07
-0.85
0.14
-0.07
87
0.0315
0.03
-0.07
-0.86
0.13
-0.07
88
0.0280
0.03
-0.07
-0.87
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Δ per $1 of underlying · Θ per day · vega per IV point.
Stacked — layer the expirations
Call open interest per strike, stacked across the checked expirations — each color is one expiry. Strikes are pruned to the liquid center of each chain.
Max pain is arithmetic, not prophecy: the settle price that would minimize what option writers pay out at expiration, computed from open interest alone. Prices sometimes gravitate toward heavy strikes into expiry — dealer hedging is a real flow — but the evidence that max pain predicts settlement better than chance is mixed, and we are not going to pretend otherwise. Use it as a map of where positioning is stacked, next to the fundamentals and the earnings calendar, not as a target.
Max pain, walls and gamma print only when an expiration holds at least 100 open contracts across 5 strikes, and max pain also needs to stay within 5% of spot when its single heaviest strike is removed. Below that the expiration reads as thin rather than printing a level one trade could move.
Data: Cboe delayed public feed (~15 minutes), refreshed here about every 15 minutes. Open interest itself updates once daily, before the open. Educational information, not investment advice.