Event risk before this expiration:Jobs report Fri, Oct 2 · 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 — 175 — is the max pain price.
Open interest by strike · Fri, Sep 17
■ calls (up)■ puts (down)AMT 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 ≈ 27.1% · 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
0.89
-0.01
130
0.0040
0.31
-0.01
-0.12
0.86
-0.01
135
0.0046
0.37
-0.02
-0.15
0.84
-0.01
140
0.0053
0.42
-0.02
-0.18
0.77
-0.02
150
0.0065
0.51
-0.02
-0.24
0.69
-0.02
160
0.0076
0.59
-0.02
-0.32
0.65
-0.02
165
0.0080
0.62
-0.02
-0.36
0.61
-0.02
170
0.0084
0.64
-0.02
-0.41
0.57
-0.02
175
0.0088
0.66
-0.02
-0.45
0.44
-0.02
190
0.0091
0.66
-0.02
-0.58
0.40
-0.02
195
0.0090
0.65
-0.02
-0.63
0.36
-0.02
200
0.0088
0.63
-0.02
-0.67
0.22
-0.02
220
0.0073
0.50
-0.01
-0.83
0.10
-0.01
250
0.0042
0.29
—
-0.99
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. 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.