SourcePut open interest divided by call open interest
As ofCboe delayed snapshot Nov 10, 6:38 PM ET
How65 put contracts / 34 call contracts = 1.91 for the 2027-03-19 expiration. Open interest is published once a day, before the open, so it describes the previous session.
Too thin to read: 99 open contracts across 18 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: 99 open contracts across 18 strikes. Max pain, walls and gamma print from 100 contracts across 5 strikes.
Open interest by strike · Fri, Mar 19
■ calls (up)■ puts (down)DTM open contracts per strike for Fri, Mar 19.
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, Mar 19
Implied volatility by strike · Fri, Mar 19
— call IV— put IVATM ≈ 25.7% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Greeks by strike · Fri, Mar 19
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.96
-0.01
75
0.0024
0.06
-0.01
-0.04
0.95
-0.01
80
0.0033
0.07
-0.01
-0.06
0.94
-0.01
85
0.0044
0.09
-0.01
-0.07
0.92
-0.01
90
0.0058
0.11
-0.02
-0.09
0.89
-0.01
95
0.0078
0.13
-0.02
-0.12
0.85
-0.02
100
0.0103
0.16
-0.02
-0.17
0.72
-0.02
110
0.0171
0.23
-0.03
-0.29
0.63
-0.03
115
0.0204
0.26
-0.03
-0.39
0.42
-0.03
125
0.0219
0.27
-0.03
-0.60
0.26
-0.02
135
0.0169
0.23
-0.02
-0.77
0.20
-0.02
140
0.0141
0.20
-0.02
-0.82
0.16
-0.02
145
0.0118
0.17
-0.02
-0.87
0.13
-0.02
150
0.0098
0.15
-0.01
-0.90
0.11
-0.02
155
0.0082
0.13
-0.01
-0.92
0.09
-0.01
160
0.0069
0.12
-0.01
-0.94
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 18 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.