■ 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 — 381 — is the max pain price.
Open interest by strike · Fri, Oct 9
■ calls (up)■ puts (down)GLD open contracts per strike for Fri, Oct 9.
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 9
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Oct 9
— call IV— put IVATM ≈ 22.5% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Oct 9
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 9
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.84
-0.38
370
0.0359
0.07
-0.39
-0.16
0.81
-0.45
371
0.0415
0.08
-0.45
-0.19
0.77
-0.52
372
0.0472
0.09
-0.53
-0.24
0.66
-0.65
374
0.0573
0.10
-0.66
-0.34
0.60
-0.69
375
0.0609
0.11
-0.71
-0.40
0.54
-0.72
376
0.0631
0.11
-0.74
-0.46
0.48
-0.72
377
0.0636
0.11
-0.74
-0.53
0.42
-0.70
378
0.0624
0.11
-0.72
-0.59
0.36
-0.66
379
0.0595
0.10
-0.68
-0.65
0.30
-0.60
380
0.0553
0.10
-0.62
-0.71
0.25
-0.53
381
0.0501
0.09
-0.55
-0.76
0.21
-0.46
382
0.0444
0.08
-0.47
-0.81
0.17
-0.40
383
0.0387
0.07
-0.39
-0.84
0.14
-0.33
384
0.0333
0.06
-0.33
-0.88
0.11
-0.28
385
0.0283
0.06
-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 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.