SourcePut open interest divided by call open interest
As ofCboe delayed snapshot Nov 10, 7:36 PM ET
How19 put contracts / 39 call contracts = 0.49 for the 2026-11-27 expiration. Open interest is published once a day, before the open, so it describes the previous session.
Too thin to read: 58 open contracts across 9 strikes. Max pain, walls and gamma print from 100 contracts across 5 strikes.
Open interest by strike · Fri, Nov 27
■ calls (up)■ puts (down)SIG open contracts per strike for Fri, Nov 27.
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 27
Implied volatility by strike · Fri, Nov 27
— call IV— put IVATM ≈ 45.3% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Greeks by strike · Fri, Nov 27
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.98
-0.05
65
0.0013
0.01
-0.06
-0.02
0.94
-0.07
95
0.0062
0.03
-0.07
-0.06
0.89
-0.08
105
0.0133
0.05
-0.08
-0.11
0.82
-0.10
110
0.0206
0.07
-0.10
-0.18
0.37
-0.13
125
0.0332
0.10
-0.13
-0.63
0.23
-0.10
130
0.0263
0.08
-0.10
-0.77
0.15
-0.09
135
0.0187
0.06
-0.09
-0.85
0.12
-0.08
140
0.0137
0.05
-0.08
-0.89
0.06
-0.06
155
0.0064
0.03
-0.06
-0.94
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.