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 — 379 — is the max pain price.
Open interest by strike · Wed, Oct 14
■ calls (up)■ puts (down)GLD open contracts per strike for Wed, Oct 14.
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 · Wed, Oct 14
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Wed, Oct 14
— call IV— put IVATM ≈ 20.1% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Wed, Oct 14
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 · Wed, Oct 14
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.71
-0.27
371
0.0318
0.18
-0.27
-0.29
0.68
-0.28
372
0.0335
0.19
-0.28
-0.33
0.64
-0.29
373
0.0349
0.20
-0.29
-0.36
0.61
-0.30
374
0.0361
0.20
-0.30
-0.40
0.57
-0.31
375
0.0369
0.20
-0.31
-0.43
0.53
-0.31
376
0.0375
0.21
-0.31
-0.47
0.50
-0.31
377
0.0377
0.21
-0.31
-0.51
0.46
-0.31
378
0.0376
0.21
-0.31
-0.55
0.42
-0.30
379
0.0372
0.20
-0.30
-0.58
0.38
-0.29
380
0.0364
0.20
-0.30
-0.62
0.31
-0.27
382
0.0338
0.19
-0.27
-0.69
0.28
-0.26
383
0.0322
0.18
-0.26
-0.72
0.25
-0.24
384
0.0303
0.17
-0.25
-0.76
0.22
-0.23
385
0.0283
0.16
-0.23
-0.78
0.20
-0.21
386
0.0262
0.15
-0.22
-0.81
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.