Event risk before this expiration:Jobs report Fri, Oct 2 · CPI release Wed, Oct 14 — 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 — 1600 — is the max pain price.
Open interest by strike · Fri, Oct 16
■ calls (up)■ puts (down)SNDK open contracts per strike for Fri, Oct 16.
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 16
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Oct 16
— call IV— put IVATM ≈ 69.9% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Oct 16
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 16
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.71
-2.10
1640
0.0010
1.69
-2.11
-0.29
0.70
-2.13
1650
0.0010
1.72
-2.15
-0.30
0.65
-2.29
1700
0.0011
1.84
-2.31
-0.35
0.60
-2.39
1740
0.0011
1.91
-2.40
-0.40
0.59
-2.41
1750
0.0011
1.93
-2.42
-0.41
0.56
-2.45
1780
0.0011
1.96
-2.47
-0.44
0.54
-2.47
1800
0.0011
1.97
-2.49
-0.47
0.51
-2.48
1820
0.0011
1.98
-2.50
-0.49
0.49
-2.49
1840
0.0011
1.98
-2.51
-0.51
0.43
-2.46
1900
0.0011
1.95
-2.48
-0.58
0.37
-2.38
1960
0.0011
1.87
-2.40
-0.64
0.33
-2.30
2000
0.0010
1.80
-2.32
-0.67
0.25
-2.04
2100
0.0009
1.58
-2.07
-0.75
0.24
-1.98
2120
0.0008
1.53
-2.01
-0.77
0.19
-1.74
2200
0.0007
1.34
-1.78
-0.82
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.