Event risk before this expiration: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 — 44 — is the max pain price.
Open interest by strike · Fri, Dec 18
■ calls (up)■ puts (down)EWTX 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 ≈ 71.2% · 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
0.84
-0.03
30
0.0187
0.04
-0.03
-0.16
0.82
-0.03
31
0.0208
0.04
-0.03
-0.18
0.80
-0.03
32
0.0230
0.04
-0.03
-0.20
0.77
-0.03
33
0.0252
0.05
-0.03
-0.23
0.71
-0.04
35
0.0294
0.05
-0.04
-0.29
0.65
-0.04
37
0.0330
0.06
-0.04
-0.35
0.61
-0.04
38
0.0345
0.06
-0.04
-0.39
0.54
-0.04
40
0.0364
0.06
-0.04
-0.46
0.50
-0.04
41
0.0368
0.06
-0.04
-0.50
0.47
-0.04
42
0.0368
0.06
-0.04
-0.54
0.43
-0.04
43
0.0365
0.06
-0.04
-0.57
0.40
-0.04
44
0.0359
0.06
-0.04
-0.60
0.37
-0.04
45
0.0350
0.06
-0.04
-0.64
0.34
-0.04
46
0.0339
0.06
-0.04
-0.67
0.29
-0.03
48
0.0313
0.05
-0.03
-0.72
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 29 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.