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 — 155 — is the max pain price.
Open interest by strike · Fri, Nov 20
■ calls (up)■ puts (down)BX 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 ≈ 38.2% · 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
0.77
-0.10
113
0.0353
0.09
-0.08
-0.26
0.73
-0.10
114
0.0363
0.09
-0.09
-0.29
0.69
-0.10
115
0.0368
0.10
-0.09
-0.32
0.66
-0.10
116
0.0372
0.11
-0.09
-0.35
0.62
-0.10
117
0.0371
0.11
-0.10
-0.39
0.58
-0.10
118
0.0372
0.11
-0.10
-0.42
0.55
-0.10
119
0.0370
0.12
-0.10
-0.46
0.51
-0.10
120
0.0369
0.12
-0.10
-0.49
0.47
-0.10
121
0.0366
0.12
-0.10
-0.53
0.43
-0.10
122
0.0363
0.12
-0.10
-0.57
0.33
-0.09
125
0.0338
0.11
-0.09
-0.67
0.18
-0.06
130
0.0254
0.08
-0.06
-0.82
0.09
-0.04
135
0.0156
0.05
-0.03
-0.92
0.04
-0.02
140
0.0087
0.03
-0.01
-0.96
0.03
-0.01
145
0.0051
0.02
-0.00
-0.98
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 51 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.
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.