SourcePut open interest divided by call open interest
As ofCboe delayed snapshot Nov 10, 9:26 PM ET
How25 put contracts / 65 call contracts = 0.38 for the 2027-01-15 expiration. Open interest is published once a day, before the open, so it describes the previous session.
Too thin to read: 90 open contracts across 23 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: 90 open contracts across 23 strikes. Max pain, walls and gamma print from 100 contracts across 5 strikes.
Open interest by strike · Fri, Jan 15
■ calls (up)■ puts (down)TFII open contracts per strike for Fri, Jan 15.
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, Jan 15
Implied volatility by strike · Fri, Jan 15
— call IV— put IVATM ≈ 37.3% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Greeks by strike · Fri, Jan 15
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.84
-0.03
80
0.0136
0.10
-0.03
-0.17
0.66
-0.04
90
0.0248
0.15
-0.04
-0.35
0.53
-0.04
95
0.0279
0.16
-0.04
-0.48
0.40
-0.04
100
0.0262
0.15
-0.04
-0.61
0.30
-0.04
105
0.0221
0.14
-0.04
-0.70
0.24
-0.04
110
0.0180
0.12
-0.04
-0.77
0.19
-0.04
115
0.0147
0.11
-0.04
-0.81
0.16
-0.04
120
0.0122
0.10
-0.04
-0.85
0.14
-0.04
125
0.0102
0.09
-0.03
-0.87
0.12
-0.03
130
0.0087
0.08
-0.03
-0.89
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 10 strikes around the money — all 23 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.