HowThe settle strike with the smallest total payout to option holders for the 2026-11-20 expiration, over 40 strikes carrying 53,607 open contracts. Open interest is published once a day, before the open, so it describes the previous session.
SourcePut open interest divided by call open interest
As ofCboe delayed snapshot Nov 10, 8:38 PM ET
How25,585 put contracts / 28,022 call contracts = 0.91 for the 2026-11-20 expiration. Open interest is published once a day, before the open, so it describes the previous session.
SourceNet gamma exposure from Cboe greeks and open interest
As ofCboe delayed snapshot Nov 10, 8:38 PM ET
HowOver every strike with open interest for the 2026-11-20 expiration: (call gamma × call OI minus put gamma × put OI) × 100 × spot² × 1%, summed. Calls count as positive and puts as negative, a convention about who holds the other side, not a measurement.
■ put-side pain■ call-side painTotal payout option writers would owe at each settle price (both sides, all open interest, ×100 shares) — low settles hurt put writers, high settles hurt call writers. The minimum — 92 — is the max pain price.
Open interest by strike · Fri, Nov 20
■ calls (up)■ puts (down)SCHW open contracts per strike for Fri, Nov 20.
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 20
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Nov 20
— call IV— put IVATM ≈ 29.1% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Nov 20
Net dealer gamma per strike, in dollars per 1% move, assuming the standard convention (dealers long calls, short puts) — an assumption, not an observation. Above the amber flip level hedging tends to dampen moves; below it, to amplify them.
Greeks by strike · Fri, Nov 20
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.89
-0.06
87.5
0.0464
0.03
-0.05
-0.13
0.87
-0.06
88
0.0517
0.03
-0.06
-0.15
0.82
-0.07
89
0.0631
0.04
-0.07
-0.20
0.76
-0.08
90
0.0743
0.05
-0.07
-0.26
0.68
-0.08
91
0.0843
0.06
-0.08
-0.33
0.59
-0.09
92
0.0914
0.06
-0.09
-0.41
0.55
-0.09
92.5
0.0936
0.06
-0.09
-0.46
0.50
-0.09
93
0.0943
0.06
-0.09
-0.51
0.41
-0.08
94
0.0916
0.06
-0.09
-0.60
0.32
-0.08
95
0.0840
0.06
-0.08
-0.69
0.25
-0.07
96
0.0732
0.05
-0.07
-0.76
0.19
-0.06
97
0.0614
0.04
-0.06
-0.82
0.17
-0.06
97.5
0.0556
0.04
-0.06
-0.84
0.15
-0.05
98
0.0500
0.04
-0.05
-0.87
0.11
-0.04
99
0.0401
0.03
-0.04
-0.90
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 40 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.