■ 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 — 45 — is the max pain price.
Open interest by strike · Fri, Sep 18
■ calls (up)■ puts (down)IMOS open contracts per strike for Fri, Sep 18.
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 18
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Sep 18
— call IV— put IVATM ≈ 58.9% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Sep 18
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 18
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.99
-0.01
25
0.0014
0.01
-0.01
-0.01
0.98
-0.02
30
0.0026
0.01
-0.02
-0.02
0.96
-0.02
35
0.0046
0.02
-0.02
-0.04
0.93
-0.03
40
0.0080
0.02
-0.03
-0.07
0.88
-0.04
45
0.0137
0.04
-0.04
-0.12
0.80
-0.05
50
0.0222
0.05
-0.05
-0.20
0.66
-0.06
55
0.0314
0.07
-0.06
-0.34
0.49
-0.07
60
0.0348
0.07
-0.07
-0.51
0.35
-0.06
65
0.0306
0.07
-0.07
-0.66
0.25
-0.06
70
0.0243
0.06
-0.06
-0.76
0.18
-0.05
75
0.0189
0.05
-0.05
-0.83
0.14
-0.05
80
0.0149
0.04
-0.05
-0.87
0.09
-0.04
90
0.0098
0.03
-0.04
-0.92
0.07
-0.03
100
0.0069
0.02
-0.04
-0.95
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 14 strikes around the money — all 16 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.