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 — 108 — is the max pain price.
Open interest by strike · Fri, Oct 30
■ calls (up)■ puts (down)W 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 ≈ 55.3% · 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
0.75
-0.17
107
0.0288
0.06
-0.18
-0.25
0.72
-0.18
108
0.0308
0.06
-0.19
-0.28
0.69
-0.19
109
0.0326
0.07
-0.20
-0.31
0.65
-0.20
110
0.0342
0.07
-0.20
-0.35
0.62
-0.21
111
0.0355
0.07
-0.21
-0.38
0.58
-0.21
112
0.0366
0.07
-0.21
-0.42
0.55
-0.21
113
0.0373
0.07
-0.21
-0.46
0.51
-0.21
114
0.0377
0.07
-0.21
-0.49
0.47
-0.21
115
0.0377
0.07
-0.21
-0.53
0.43
-0.21
116
0.0374
0.07
-0.21
-0.57
0.40
-0.20
117
0.0367
0.07
-0.21
-0.60
0.36
-0.20
118
0.0356
0.07
-0.20
-0.64
0.33
-0.19
119
0.0344
0.07
-0.19
-0.67
0.30
-0.18
120
0.0328
0.07
-0.18
-0.70
0.17
-0.13
125
0.0236
0.05
-0.13
-0.83
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 48 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.