Event risk before this expiration:FOMC decision Wed, Oct 28 — 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 — 510 — is the max pain price.
Open interest by strike · Fri, Oct 30
■ calls (up)■ puts (down)VRTX open contracts per strike for Fri, Oct 30.
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 30
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Oct 30
— call IV— put IVATM ≈ 37.6% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Oct 30
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 30
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.80
-0.75
495
0.0128
0.15
-0.76
-0.20
0.77
-0.82
497.5
0.0141
0.17
-0.83
-0.23
0.73
-0.89
500
0.0153
0.18
-0.90
-0.27
0.69
-0.96
502.5
0.0164
0.19
-0.97
-0.31
0.65
-1.01
505
0.0173
0.20
-1.02
-0.35
0.60
-1.05
507.5
0.0180
0.21
-1.07
-0.40
0.56
-1.08
510
0.0184
0.21
-1.09
-0.45
0.51
-1.10
512.5
0.0186
0.22
-1.11
-0.49
0.47
-1.09
515
0.0185
0.22
-1.10
-0.54
0.42
-1.07
517.5
0.0182
0.21
-1.08
-0.58
0.38
-1.04
520
0.0176
0.21
-1.05
-0.63
0.34
-0.99
522.5
0.0168
0.20
-1.00
-0.67
0.29
-0.94
525
0.0159
0.19
-0.94
-0.71
0.26
-0.88
527.5
0.0148
0.18
-0.88
-0.75
0.23
-0.81
530
0.0137
0.17
-0.81
-0.78
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 52 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.