Event risk before this expiration:FOMC decision Wed, Oct 28 — 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 — 117 — is the max pain price.
Open interest by strike · Fri, Oct 30
■ calls (up)■ puts (down)CBRS open contracts per strike for Fri, Oct 30.
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, Oct 30
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Oct 30
— call IV— put IVATM ≈ 102.4% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Oct 30
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, Oct 30
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.89
-0.29
95
0.0142
0.02
-0.29
-0.11
0.82
-0.41
99
0.0206
0.03
-0.41
-0.18
0.80
-0.44
100
0.0223
0.03
-0.44
-0.20
0.78
-0.47
101
0.0240
0.03
-0.47
-0.23
0.70
-0.55
104
0.0288
0.04
-0.56
-0.31
0.67
-0.57
105
0.0301
0.04
-0.58
-0.34
0.60
-0.60
107
0.0323
0.04
-0.61
-0.40
0.54
-0.62
109
0.0336
0.05
-0.62
-0.47
0.50
-0.62
110
0.0339
0.05
-0.63
-0.50
0.44
-0.61
112
0.0336
0.04
-0.61
-0.57
0.40
-0.59
113
0.0331
0.04
-0.60
-0.60
0.34
-0.55
115
0.0315
0.04
-0.56
-0.66
0.31
-0.53
116
0.0304
0.04
-0.53
-0.69
0.28
-0.51
117
0.0291
0.04
-0.51
-0.72
0.26
-0.48
118
0.0277
0.04
-0.48
-0.75
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 54 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.