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 — 135 — is the max pain price.
Open interest by strike · Fri, Oct 16
■ calls (up)■ puts (down)PEP 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 ≈ 24.8% · 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
0.80
-0.05
124
0.0320
0.09
-0.05
-0.20
0.77
-0.05
125
0.0353
0.10
-0.06
-0.23
0.73
-0.06
126
0.0384
0.11
-0.06
-0.27
0.69
-0.06
127
0.0411
0.12
-0.06
-0.31
0.65
-0.07
128
0.0434
0.13
-0.07
-0.36
0.60
-0.07
129
0.0453
0.13
-0.07
-0.40
0.56
-0.07
130
0.0465
0.13
-0.07
-0.45
0.51
-0.07
131
0.0470
0.13
-0.07
-0.50
0.46
-0.07
132
0.0469
0.13
-0.07
-0.54
0.42
-0.07
133
0.0461
0.13
-0.07
-0.59
0.37
-0.07
134
0.0447
0.13
-0.07
-0.64
0.33
-0.06
135
0.0428
0.12
-0.07
-0.68
0.29
-0.06
136
0.0404
0.12
-0.06
-0.72
0.26
-0.06
137
0.0378
0.11
-0.06
-0.76
0.22
-0.05
138
0.0348
0.10
-0.05
-0.80
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 50 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.