HowThe settle strike with the smallest total payout to option holders for the 2026-11-13 expiration, over 63 strikes carrying 2,011 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, 7:53 PM ET
How809 put contracts / 1,202 call contracts = 0.67 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, 7:53 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.
■ 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 — 130 — is the max pain price.
Open interest by strike · Fri, Nov 13
■ calls (up)■ puts (down)RH open contracts per strike for Fri, Nov 13. Showing the 46 largest of 63 strikes by open interest, 97.7% of the total.
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 ≈ 83.8% · 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
0.72
-0.56
130
0.0266
0.05
-0.56
-0.28
0.69
-0.58
131
0.0278
0.05
-0.58
-0.31
0.66
-0.61
132
0.0290
0.05
-0.61
-0.34
0.63
-0.63
133
0.0300
0.05
-0.63
-0.37
0.60
-0.64
134
0.0308
0.06
-0.64
-0.40
0.57
-0.65
135
0.0315
0.06
-0.65
-0.43
0.54
-0.66
136
0.0319
0.06
-0.66
-0.46
0.51
-0.66
137
0.0321
0.06
-0.66
-0.49
0.47
-0.66
138
0.0321
0.06
-0.65
-0.53
0.44
-0.65
139
0.0319
0.06
-0.65
-0.56
0.41
-0.63
140
0.0314
0.06
-0.63
-0.59
0.38
-0.62
141
0.0308
0.06
-0.62
-0.62
0.35
-0.60
142
0.0300
0.05
-0.60
-0.65
0.32
-0.57
143
0.0291
0.05
-0.57
-0.68
0.29
-0.55
144
0.0280
0.05
-0.55
-0.70
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 46 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.