HowThe settle strike with the smallest total payout to option holders for the 2026-11-20 expiration, over 23 strikes carrying 7,103 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 2, 10:34 PM ET
How683 put contracts / 6,420 call contracts = 0.11 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 2, 10:34 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.
Event risk before this expiration:Jobs report Fri, Nov 6 · CPI release Tue, Nov 10 — macro releases historically overwhelm pinning effects; max pain reads weakest in event weeks.
■ 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 — 10 — is the max pain price.
Open interest by strike · Fri, Nov 20
■ calls (up)■ puts (down)DNA 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 ≈ 127.9% · 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
1.00
-0.01
1
0.0016
0.00
-0.01
-0.01
0.99
-0.01
2
0.0036
0.00
-0.01
-0.01
0.98
-0.01
4
0.0115
0.00
-0.01
-0.03
0.94
-0.01
6
0.0345
0.00
-0.01
-0.07
0.89
-0.02
7
0.0590
0.00
-0.02
-0.11
0.81
-0.02
8
0.0932
0.01
-0.02
-0.20
0.68
-0.03
9
0.1249
0.01
-0.03
-0.32
0.55
-0.03
10
0.1387
0.01
-0.03
-0.46
0.42
-0.03
11
0.1337
0.01
-0.03
-0.58
0.32
-0.03
12
0.1185
0.01
-0.03
-0.69
0.24
-0.03
13
0.1004
0.01
-0.03
-0.77
0.18
-0.02
14
0.0831
0.01
-0.02
-0.82
0.14
-0.02
15
0.0679
0.01
-0.02
-0.87
0.11
-0.02
16
0.0551
0.00
-0.02
-0.90
0.08
-0.01
17
0.0446
0.00
-0.01
-0.93
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 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.