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 — 1090 — is the max pain price.
Open interest by strike · Fri, Dec 18
■ calls (up)■ puts (down)SNDK 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 ≈ 74.1% · 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
0.81
-1.00
1400
0.0004
2.44
-1.01
-0.19
0.78
-1.07
1450
0.0004
2.63
-1.08
-0.22
0.76
-1.15
1500
0.0005
2.81
-1.16
-0.25
0.71
-1.25
1580
0.0005
3.06
-1.26
-0.29
0.70
-1.27
1600
0.0005
3.12
-1.29
-0.30
0.65
-1.36
1690
0.0006
3.33
-1.38
-0.36
0.64
-1.36
1700
0.0006
3.35
-1.39
-0.36
0.58
-1.43
1800
0.0006
3.50
-1.45
-0.42
0.53
-1.46
1900
0.0006
3.56
-1.49
-0.48
0.50
-1.46
1950
0.0006
3.57
-1.50
-0.51
0.47
-1.46
2000
0.0006
3.56
-1.50
-0.54
0.42
-1.44
2100
0.0006
3.50
-1.48
-0.59
0.38
-1.40
2200
0.0006
3.39
-1.45
-0.64
0.35
-1.38
2250
0.0006
3.32
-1.43
-0.66
0.29
-1.29
2400
0.0005
3.08
-1.34
-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 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.