SourcePut open interest divided by call open interest
As ofCboe delayed snapshot Nov 3, 12:07 AM ET
How15 put contracts / 5 call contracts = 3.00 for the 2026-12-18 expiration. Open interest is published once a day, before the open, so it describes the previous session.
Too thin to read: 20 open contracts across 11 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 · Jobs report Fri, Dec 4 · FOMC decision Wed, Dec 9 · CPI release Thu, Dec 10 — macro releases historically overwhelm pinning effects; max pain reads weakest in event weeks.
Too thin to read: 20 open contracts across 11 strikes. Max pain, walls and gamma print from 100 contracts across 5 strikes.
Open interest by strike · Fri, Dec 18
■ calls (up)■ puts (down)EFAV open contracts per strike for Fri, Dec 18.
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, Dec 18
Implied volatility by strike · Fri, Dec 18
— call IV— put IVATM ≈ 15.7% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Greeks by strike · Fri, Dec 18
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.90
-0.02
84
0.0167
0.06
-0.03
-0.13
0.86
-0.02
87
0.0238
0.07
-0.03
-0.17
0.85
-0.02
88
0.0272
0.08
-0.03
-0.19
0.81
-0.02
90
0.0362
0.08
-0.03
-0.24
0.79
-0.02
91
0.0422
0.10
-0.03
-0.27
0.72
-0.02
93
0.0583
0.11
-0.02
-0.36
0.60
-0.02
95
0.0752
0.13
-0.02
-0.49
0.52
-0.02
96
0.0782
0.13
-0.02
-0.57
0.44
-0.02
97
0.0754
0.13
-0.02
-0.64
0.33
-0.02
99
0.0616
0.12
-0.02
-0.73
0.28
-0.02
100
0.0542
0.11
-0.02
-0.77
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.