Event risk before this expiration: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 — 60 — is the max pain price.
Open interest by strike · Fri, Oct 16
■ calls (up)■ puts (down)SHAK 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 ≈ 43.1% · 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
0.94
-0.03
60
0.0237
0.01
-0.03
-0.06
0.92
-0.04
61
0.0327
0.01
-0.04
-0.08
0.89
-0.06
62
0.0441
0.02
-0.06
-0.11
0.84
-0.07
63
0.0577
0.02
-0.07
-0.16
0.78
-0.09
64
0.0724
0.03
-0.09
-0.23
0.70
-0.10
65
0.0861
0.03
-0.10
-0.30
0.60
-0.11
66
0.0960
0.04
-0.11
-0.40
0.51
-0.12
67
0.0998
0.04
-0.12
-0.49
0.41
-0.11
68
0.0967
0.04
-0.12
-0.59
0.32
-0.11
69
0.0880
0.03
-0.11
-0.68
0.24
-0.09
70
0.0760
0.03
-0.09
-0.76
0.18
-0.08
71
0.0630
0.03
-0.08
-0.82
0.14
-0.07
72
0.0508
0.02
-0.07
-0.86
0.06
-0.04
75
0.0244
0.01
-0.04
-0.94
0.01
-0.01
80
0.0070
0.00
-0.01
-0.99
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 30 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.