SourcePut open interest divided by call open interest
As ofCboe delayed snapshot Nov 10, 4:40 PM ET
How14 put contracts / 18 call contracts = 0.78 for the 2026-12-11 expiration. Open interest is published once a day, before the open, so it describes the previous session.
Too thin to read: 32 open contracts across 10 strikes. Max pain, walls and gamma print from 100 contracts across 5 strikes.
Event risk before this expiration: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: 32 open contracts across 10 strikes. Max pain, walls and gamma print from 100 contracts across 5 strikes.
Open interest by strike · Fri, Dec 11
■ calls (up)■ puts (down)BURL open contracts per strike for Fri, Dec 11.
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 11
Implied volatility by strike · Fri, Dec 11
— call IV— put IVATM ≈ 58.4% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Greeks by strike · Fri, Dec 11
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.94
-0.07
200
0.0029
0.09
-0.08
-0.06
0.92
-0.10
205
0.0036
0.11
-0.10
-0.08
0.68
-0.24
240
0.0086
0.27
-0.25
-0.33
0.63
-0.26
245
0.0090
0.28
-0.26
-0.38
0.44
-0.27
265
0.0093
0.29
-0.27
-0.56
0.36
-0.26
275
0.0088
0.28
-0.26
-0.65
0.32
-0.24
280
0.0084
0.27
-0.25
-0.69
0.22
-0.20
295
0.0069
0.22
-0.21
-0.79
0.20
-0.19
300
0.0064
0.20
-0.19
-0.82
0.15
-0.16
310
0.0053
0.17
-0.16
-0.86
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.