Event risk before this expiration:FOMC decision Wed, Sep 16 · 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 — 300 — is the max pain price.
Open interest by strike · Fri, Oct 23
■ calls (up)■ puts (down)TLN open contracts per strike for Fri, Oct 23.
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 23
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Oct 23
— call IV— put IVATM ≈ 51.7% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Oct 23
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 23
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.95
-0.08
230
0.0016
0.11
-0.08
-0.05
0.94
-0.09
235
0.0019
0.13
-0.09
-0.06
0.93
-0.10
240
0.0022
0.14
-0.10
-0.07
0.90
-0.12
250
0.0029
0.18
-0.12
-0.10
0.87
-0.15
260
0.0037
0.23
-0.15
-0.13
0.77
-0.20
280
0.0054
0.32
-0.20
-0.23
0.64
-0.24
300
0.0068
0.40
-0.25
-0.36
0.53
-0.26
315
0.0073
0.42
-0.26
-0.47
0.43
-0.25
330
0.0072
0.42
-0.26
-0.58
0.33
-0.23
345
0.0067
0.38
-0.24
-0.68
0.30
-0.22
350
0.0064
0.37
-0.23
-0.71
0.27
-0.21
355
0.0061
0.35
-0.22
-0.74
0.22
-0.19
365
0.0055
0.32
-0.20
-0.79
0.20
-0.18
370
0.0051
0.30
-0.19
-0.81
0.17
-0.16
380
0.0045
0.27
-0.17
-0.85
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 22 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.