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 — 52 — is the max pain price.
Open interest by strike · Fri, Oct 30
■ calls (up)■ puts (down)ASO 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 ≈ 41.4% · 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
0.97
-0.03
53
0.0190
0.01
-0.03
-0.03
0.95
-0.04
54
0.0281
0.01
-0.04
-0.05
0.92
-0.06
55
0.0414
0.01
-0.06
-0.08
0.88
-0.08
56
0.0602
0.01
-0.08
-0.12
0.82
-0.10
57
0.0850
0.02
-0.10
-0.18
0.73
-0.13
58
0.1129
0.02
-0.13
-0.28
0.60
-0.14
59
0.1353
0.02
-0.15
-0.40
0.47
-0.15
60
0.1414
0.03
-0.15
-0.54
0.33
-0.14
61
0.1279
0.02
-0.14
-0.67
0.23
-0.11
62
0.1031
0.02
-0.11
-0.78
0.15
-0.09
63
0.0771
0.01
-0.09
-0.86
0.10
-0.07
64
0.0555
0.01
-0.07
-0.91
0.07
-0.05
65
0.0394
0.01
-0.05
-0.94
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 13 strikes around the money — all 28 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.