Event risk before this expiration:CPI release Wed, Oct 14 — 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 — 225 — is the max pain price.
Open interest by strike · Fri, Oct 16
■ calls (up)■ puts (down)CRWD open contracts per strike for Fri, Oct 16.
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 16
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Oct 16
— call IV— put IVATM ≈ 54.5% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Oct 16
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 16
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.94
-0.23
240
0.0081
0.03
-0.23
-0.06
0.92
-0.30
242.5
0.0105
0.04
-0.30
-0.08
0.89
-0.39
245
0.0133
0.04
-0.39
-0.11
0.81
-0.60
250
0.0201
0.06
-0.60
-0.19
0.76
-0.71
252.5
0.0236
0.07
-0.71
-0.24
0.69
-0.81
255
0.0267
0.08
-0.82
-0.31
0.62
-0.89
257.5
0.0291
0.09
-0.90
-0.38
0.55
-0.93
260
0.0304
0.09
-0.94
-0.45
0.47
-0.94
262.5
0.0306
0.10
-0.94
-0.53
0.40
-0.90
265
0.0297
0.09
-0.91
-0.60
0.26
-0.73
270
0.0251
0.08
-0.74
-0.74
0.21
-0.62
272.5
0.0220
0.07
-0.63
-0.80
0.16
-0.52
275
0.0186
0.06
-0.52
-0.84
0.09
-0.33
280
0.0124
0.04
-0.33
-0.91
0.07
-0.25
282.5
0.0099
0.03
-0.25
-0.94
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 60 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.