Event risk before this expiration:Jobs report Fri, Aug 7 · CPI release Wed, Aug 12 · Jobs report Fri, Sep 4 — 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 — 365 — is the max pain price.
Open interest by strike · Fri, Sep 4
■ calls (up)■ puts (down)V open contracts per strike for Fri, Sep 4.
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, Sep 4
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Sep 4
— call IV— put IVATM ≈ 20.6% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Sep 4
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, Sep 4
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.94
-0.04
335
0.0049
0.13
-0.05
-0.06
0.91
-0.05
340
0.0065
0.17
-0.07
-0.09
0.88
-0.07
345
0.0085
0.21
-0.08
-0.12
0.83
-0.09
350
0.0109
0.26
-0.10
-0.17
0.78
-0.11
355
0.0134
0.32
-0.12
-0.23
0.70
-0.13
360
0.0157
0.36
-0.13
-0.30
0.62
-0.14
365
0.0176
0.40
-0.14
-0.39
0.53
-0.14
370
0.0186
0.41
-0.15
-0.48
0.44
-0.14
375
0.0186
0.41
-0.14
-0.57
0.35
-0.13
380
0.0176
0.39
-0.13
-0.67
0.27
-0.12
385
0.0156
0.35
-0.12
-0.75
0.20
-0.10
390
0.0132
0.30
-0.10
-0.82
0.15
-0.08
395
0.0107
0.24
-0.08
-0.88
0.10
-0.07
400
0.0084
0.19
-0.06
-0.92
0.07
-0.05
405
0.0064
0.15
-0.04
-0.95
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 43 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.