HowThe settle strike with the smallest total payout to option holders for the 2026-11-13 expiration, over 28 strikes carrying 3,025 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 9, 8:18 PM ET
How1,784 put contracts / 1,241 call contracts = 1.44 for the 2026-11-13 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 9, 8:18 PM ET
HowOver every strike with open interest for the 2026-11-13 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: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 — 24 — is the max pain price.
Open interest by strike · Fri, Nov 13
■ calls (up)■ puts (down)M open contracts per strike for Fri, Nov 13.
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 13
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Nov 13
— call IV— put IVATM ≈ 53.7% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Nov 13
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 13
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.99
-0.01
21.5
0.0204
0.00
-0.01
-0.01
0.97
-0.01
22
0.0358
0.00
-0.01
-0.03
0.95
-0.02
22.5
0.0623
0.00
-0.02
-0.05
0.91
-0.03
23
0.1027
0.00
-0.03
-0.09
0.85
-0.04
23.5
0.1548
0.01
-0.04
-0.15
0.76
-0.06
24
0.2120
0.01
-0.06
-0.24
0.64
-0.07
24.5
0.2621
0.01
-0.07
-0.36
0.50
-0.07
25
0.2845
0.01
-0.07
-0.50
0.37
-0.07
25.5
0.2687
0.01
-0.07
-0.64
0.25
-0.06
26
0.2246
0.01
-0.06
-0.76
0.15
-0.04
26.5
0.1682
0.01
-0.04
-0.85
0.10
-0.03
27
0.1177
0.01
-0.03
-0.91
0.07
-0.02
27.5
0.0850
0.00
-0.02
-0.93
0.06
-0.02
28
0.0660
0.00
-0.02
-0.94
0.05
-0.02
28.5
0.0537
0.00
-0.02
-0.95
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 28 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.