■ 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 25
■ calls (up)■ puts (down)ADI open contracts per strike for Fri, Sep 25.
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 25
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Sep 25
— call IV— put IVATM ≈ 42.6% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Sep 25
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 25
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.84
-0.51
362.5
0.0130
0.10
-0.51
-0.15
0.81
-0.58
365
0.0150
0.11
-0.58
-0.19
0.77
-0.65
367.5
0.0169
0.12
-0.66
-0.23
0.73
-0.72
370
0.0187
0.14
-0.73
-0.27
0.68
-0.78
372.5
0.0204
0.15
-0.79
-0.32
0.63
-0.83
375
0.0217
0.15
-0.83
-0.37
0.57
-0.86
377.5
0.0226
0.16
-0.86
-0.43
0.52
-0.87
380
0.0231
0.16
-0.87
-0.49
0.46
-0.86
382.5
0.0231
0.16
-0.86
-0.55
0.40
-0.83
385
0.0226
0.16
-0.83
-0.60
0.34
-0.78
387.5
0.0216
0.15
-0.79
-0.66
0.29
-0.72
390
0.0203
0.14
-0.72
-0.71
0.25
-0.65
392.5
0.0186
0.13
-0.65
-0.76
0.20
-0.57
395
0.0167
0.12
-0.57
-0.80
0.17
-0.49
397.5
0.0147
0.10
-0.49
-0.84
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 54 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.