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 — 57 — is the max pain price.
Open interest by strike · Fri, Oct 30
■ calls (up)■ puts (down)ETHA 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 ≈ 46.2% · 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
0.83
-0.07
50.5
0.0613
0.02
-0.07
-0.17
0.81
-0.08
51
0.0697
0.02
-0.08
-0.20
0.77
-0.08
51.5
0.0786
0.02
-0.08
-0.23
0.73
-0.09
52
0.0878
0.03
-0.09
-0.27
0.69
-0.09
52.5
0.0967
0.03
-0.10
-0.31
0.64
-0.10
53
0.1048
0.03
-0.10
-0.36
0.59
-0.10
53.5
0.1114
0.03
-0.10
-0.41
0.53
-0.10
54
0.1157
0.03
-0.10
-0.47
0.47
-0.10
54.5
0.1172
0.03
-0.10
-0.53
0.42
-0.10
55
0.1157
0.03
-0.10
-0.59
0.36
-0.09
55.5
0.1112
0.03
-0.09
-0.65
0.31
-0.09
56
0.1044
0.03
-0.09
-0.70
0.26
-0.08
56.5
0.0959
0.03
-0.08
-0.75
0.22
-0.07
57
0.0866
0.02
-0.07
-0.79
0.19
-0.07
57.5
0.0771
0.02
-0.07
-0.82
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.