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 — 230 — is the max pain price.
Open interest by strike · Fri, Oct 30
■ calls (up)■ puts (down)ADSK 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 ≈ 59.2% · 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
0.88
-0.39
232.5
0.0129
0.05
-0.40
-0.13
0.84
-0.46
235
0.0155
0.06
-0.46
-0.16
0.80
-0.52
237.5
0.0183
0.07
-0.53
-0.20
0.76
-0.58
240
0.0213
0.08
-0.58
-0.24
0.71
-0.63
242.5
0.0244
0.09
-0.64
-0.29
0.65
-0.67
245
0.0272
0.10
-0.67
-0.36
0.58
-0.69
247.5
0.0293
0.10
-0.70
-0.43
0.50
-0.70
250
0.0302
0.10
-0.70
-0.50
0.43
-0.68
252.5
0.0298
0.10
-0.69
-0.58
0.36
-0.64
255
0.0283
0.10
-0.65
-0.65
0.29
-0.58
257.5
0.0259
0.09
-0.59
-0.71
0.23
-0.51
260
0.0231
0.08
-0.51
-0.77
0.18
-0.42
262.5
0.0199
0.07
-0.42
-0.83
0.14
-0.34
265
0.0166
0.06
-0.34
-0.87
0.10
-0.27
267.5
0.0134
0.05
-0.27
-0.90
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.