SourcePut open interest divided by call open interest
As ofCboe delayed snapshot Nov 3, 12:11 AM ET
How10 put contracts / 57 call contracts = 0.18 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: 67 open contracts across 16 strikes. Max pain, walls and gamma print from 100 contracts across 5 strikes.
Event risk before this expiration:Jobs report Fri, Nov 6 · CPI release Tue, Nov 10 — macro releases historically overwhelm pinning effects; max pain reads weakest in event weeks.
Too thin to read: 67 open contracts across 16 strikes. Max pain, walls and gamma print from 100 contracts across 5 strikes.
Open interest by strike · Fri, Nov 20
■ calls (up)■ puts (down)AVEM 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 ≈ 29.9% · 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
0.98
-0.02
50
0.0019
0.01
-0.03
-0.02
0.91
-0.05
73
0.0146
0.03
-0.05
-0.09
0.90
-0.05
74
0.0163
0.03
-0.05
-0.10
0.88
-0.05
76
0.0207
0.04
-0.06
-0.13
0.66
-0.06
84
0.0600
0.07
-0.06
-0.35
0.60
-0.06
85
0.0672
0.07
-0.06
-0.41
0.46
-0.06
87
0.0746
0.08
-0.06
-0.55
0.32
-0.05
89
0.0663
0.07
-0.06
-0.69
0.27
-0.05
90
0.0589
0.06
-0.05
-0.75
0.23
-0.05
91
0.0515
0.06
-0.05
-0.79
0.19
-0.05
92
0.0447
0.05
-0.05
-0.82
0.17
-0.04
93
0.0389
0.05
-0.05
-0.85
0.13
-0.04
95
0.0298
0.04
-0.04
-0.89
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 13 strikes around the money — all 16 are in the CSV. 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.