Event risk before this expiration:FOMC decision Wed, Oct 28 · 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 — 141 — is the max pain price.
Open interest by strike · Fri, Nov 27
■ calls (up)■ puts (down)DUOL open contracts per strike for Fri, Nov 27.
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 27
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Nov 27
— call IV— put IVATM ≈ 80.4% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Nov 27
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 27
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.63
-0.20
135
0.0114
0.16
-0.20
-0.37
0.62
-0.20
136
0.0115
0.16
-0.20
-0.38
0.61
-0.20
137
0.0116
0.16
-0.20
-0.39
0.60
-0.20
138
0.0117
0.16
-0.20
-0.40
0.58
-0.20
139
0.0118
0.16
-0.21
-0.42
0.57
-0.21
140
0.0119
0.16
-0.21
-0.43
0.56
-0.21
141
0.0120
0.16
-0.21
-0.44
0.55
-0.21
142
0.0120
0.16
-0.21
-0.45
0.54
-0.21
143
0.0121
0.16
-0.21
-0.46
0.52
-0.21
144
0.0121
0.16
-0.21
-0.48
0.51
-0.21
145
0.0122
0.17
-0.21
-0.49
0.45
-0.21
150
0.0121
0.16
-0.21
-0.55
0.40
-0.20
155
0.0118
0.16
-0.20
-0.60
0.37
-0.20
157.5
0.0116
0.16
-0.20
-0.63
0.34
-0.19
160
0.0113
0.15
-0.19
-0.66
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.
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.