Event risk before this expiration:Jobs report Fri, Oct 2 — 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 — 545 — is the max pain price.
Open interest by strike · Fri, Oct 2
■ calls (up)■ puts (down)LMT open contracts per strike for Fri, Oct 2.
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 2
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Oct 2
— call IV— put IVATM ≈ 26.2% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Oct 2
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 2
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.87
-0.25
497.5
0.0088
0.19
-0.26
-0.13
0.85
-0.28
500
0.0098
0.21
-0.29
-0.16
0.79
-0.34
505
0.0120
0.25
-0.34
-0.21
0.73
-0.39
510
0.0141
0.29
-0.40
-0.28
0.69
-0.41
512.5
0.0151
0.31
-0.42
-0.31
0.65
-0.43
515
0.0159
0.32
-0.44
-0.35
0.57
-0.46
520
0.0170
0.34
-0.46
-0.43
0.53
-0.46
522.5
0.0173
0.34
-0.47
-0.48
0.48
-0.46
525
0.0174
0.35
-0.47
-0.52
0.44
-0.46
527.5
0.0173
0.34
-0.46
-0.57
0.40
-0.45
530
0.0169
0.34
-0.45
-0.61
0.32
-0.41
535
0.0156
0.31
-0.42
-0.69
0.25
-0.36
540
0.0138
0.28
-0.37
-0.76
0.19
-0.31
545
0.0117
0.24
-0.32
-0.82
0.14
-0.26
550
0.0096
0.20
-0.27
-0.87
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 50 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.