■ 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 — 389 — is the max pain price.
Open interest by strike · Thu, Oct 8
■ calls (up)■ puts (down)GLD open contracts per strike for Thu, Oct 8.
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 · Thu, Oct 8
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Thu, Oct 8
— call IV— put IVATM ≈ 23.3% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Thu, Oct 8
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 · Thu, Oct 8
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
1.00
—
350
0.0005
0.00
-0.00
-0.00
1.00
-0.00
355
0.0012
0.00
-0.01
-0.00
0.99
-0.02
360
0.0032
0.01
-0.02
-0.01
0.97
-0.06
365
0.0101
0.01
-0.06
-0.03
0.90
-0.24
370
0.0346
0.04
-0.25
-0.10
0.70
-0.89
374
0.0736
0.07
-0.89
-0.30
0.62
-1.21
375
0.0813
0.07
-1.21
-0.38
0.54
-1.59
376
0.0856
0.08
-1.59
-0.46
0.46
-1.56
377
0.0857
0.08
-1.56
-0.55
0.37
-1.17
378
0.0815
0.07
-1.17
-0.63
0.30
-0.86
379
0.0738
0.07
-0.86
-0.70
0.23
-0.62
380
0.0641
0.06
-0.63
-0.77
0.18
-0.45
381
0.0537
0.05
-0.45
-0.83
0.13
-0.32
382
0.0437
0.04
-0.33
-0.87
0.10
-0.23
383
0.0349
0.04
-0.25
-0.91
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 38 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.