Event risk before this expiration:Jobs report Fri, Oct 2 · CPI release Wed, Oct 14 · FOMC decision Wed, Oct 28 · Jobs report Fri, Nov 6 · CPI release Tue, Nov 10 · Jobs report Fri, Dec 4 · FOMC decision Wed, Dec 9 · CPI release Thu, Dec 10 — 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 — 530 — is the max pain price.
Open interest by strike · Fri, Dec 18
■ calls (up)■ puts (down)LMT open contracts per strike for Fri, Dec 18.
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, Dec 18
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Dec 18
— call IV— put IVATM ≈ 29.1% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Dec 18
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, Dec 18
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.82
-0.11
470
0.0037
0.66
-0.12
-0.20
0.77
-0.13
480
0.0042
0.76
-0.13
-0.24
0.73
-0.14
490
0.0047
0.84
-0.14
-0.29
0.68
-0.15
500
0.0051
0.91
-0.15
-0.34
0.62
-0.16
510
0.0054
0.96
-0.16
-0.40
0.59
-0.16
515
0.0055
0.98
-0.16
-0.42
0.57
-0.16
520
0.0056
0.99
-0.16
-0.45
0.54
-0.17
525
0.0056
1.00
-0.16
-0.48
0.51
-0.17
530
0.0056
1.01
-0.16
-0.51
0.48
-0.17
535
0.0056
1.01
-0.16
-0.53
0.46
-0.16
540
0.0056
1.00
-0.16
-0.56
0.40
-0.16
550
0.0055
0.98
-0.16
-0.61
0.38
-0.16
555
0.0054
0.96
-0.15
-0.64
0.35
-0.15
560
0.0052
0.94
-0.15
-0.66
0.33
-0.15
565
0.0051
0.92
-0.14
-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 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.