Event risk before this expiration:CPI release Wed, Oct 14 · 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 — 260 — is the max pain price.
Open interest by strike · Fri, Oct 30
■ calls (up)■ puts (down)CRWD 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 ≈ 49.9% · 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
0.80
-0.24
240
0.0096
0.16
-0.25
-0.21
0.74
-0.28
245
0.0111
0.18
-0.28
-0.26
0.71
-0.29
247.5
0.0117
0.19
-0.30
-0.29
0.68
-0.30
250
0.0123
0.20
-0.31
-0.32
0.65
-0.32
252.5
0.0128
0.21
-0.32
-0.35
0.61
-0.33
255
0.0133
0.22
-0.33
-0.39
0.58
-0.33
257.5
0.0136
0.22
-0.34
-0.42
0.55
-0.34
260
0.0138
0.22
-0.34
-0.46
0.51
-0.34
262.5
0.0140
0.23
-0.34
-0.49
0.48
-0.34
265
0.0140
0.23
-0.34
-0.53
0.44
-0.33
267.5
0.0139
0.22
-0.34
-0.56
0.41
-0.33
270
0.0137
0.22
-0.33
-0.59
0.38
-0.32
272.5
0.0134
0.21
-0.32
-0.63
0.34
-0.31
275
0.0130
0.21
-0.31
-0.66
0.32
-0.30
277.5
0.0126
0.20
-0.30
-0.69
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 57 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.