Event risk before this expiration:Jobs report Fri, Oct 2 · CPI release Wed, Oct 14 — 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 — 575 — is the max pain price.
Open interest by strike · Fri, Oct 23
■ calls (up)■ puts (down)MA open contracts per strike for Fri, Oct 23.
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, Oct 23
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Oct 23
— call IV— put IVATM ≈ 20.5% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Oct 23
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, Oct 23
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.84
-0.14
530
0.0062
0.44
-0.14
-0.17
0.81
-0.15
535
0.0071
0.48
-0.15
-0.20
0.77
-0.16
540
0.0080
0.53
-0.17
-0.23
0.73
-0.18
545
0.0088
0.58
-0.18
-0.27
0.69
-0.19
550
0.0096
0.62
-0.19
-0.32
0.64
-0.20
555
0.0103
0.66
-0.20
-0.37
0.58
-0.20
560
0.0108
0.68
-0.20
-0.42
0.53
-0.20
565
0.0111
0.69
-0.21
-0.48
0.47
-0.20
570
0.0112
0.70
-0.20
-0.54
0.42
-0.20
575
0.0111
0.68
-0.20
-0.59
0.36
-0.19
580
0.0107
0.66
-0.19
-0.65
0.31
-0.17
585
0.0102
0.62
-0.18
-0.70
0.26
-0.16
590
0.0094
0.58
-0.16
-0.75
0.22
-0.15
595
0.0086
0.53
-0.15
-0.79
0.18
-0.13
600
0.0076
0.47
-0.13
-0.83
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 35 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.