Event risk before this expiration:CPI release Wed, Oct 14 · FOMC decision Wed, Oct 28 · Jobs report Fri, Nov 6 · CPI release Tue, Nov 10 · Jobs report Fri, Dec 4 · FOMC decision Wed, Dec 9 · CPI release Thu, Dec 10 — 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 — 82.5 — is the max pain price.
Open interest by strike · Fri, Sep 17
■ calls (up)■ puts (down)APH open contracts per strike for Fri, Sep 17.
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 17
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Sep 17
— call IV— put IVATM ≈ 44.5% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Sep 17
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 17
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.79
-0.01
70
0.0075
0.24
-0.02
-0.22
0.77
-0.01
72.5
0.0080
0.26
-0.02
-0.24
0.74
-0.02
75
0.0084
0.27
-0.02
-0.27
0.72
-0.02
77.5
0.0089
0.28
-0.02
-0.29
0.69
-0.02
80
0.0093
0.29
-0.02
-0.32
0.67
-0.02
82.5
0.0096
0.30
-0.02
-0.34
0.64
-0.02
85
0.0099
0.31
-0.02
-0.37
0.62
-0.02
87.5
0.0102
0.32
-0.02
-0.40
0.59
-0.02
90
0.0104
0.33
-0.02
-0.42
0.57
-0.02
92.5
0.0105
0.33
-0.02
-0.45
0.54
-0.02
95
0.0106
0.33
-0.02
-0.48
0.52
-0.02
97.5
0.0107
0.34
-0.02
-0.51
0.49
-0.02
100
0.0107
0.34
-0.02
-0.53
0.45
-0.02
105
0.0107
0.33
-0.02
-0.58
0.41
-0.02
110
0.0105
0.33
-0.02
-0.63
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 31 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.