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 — 53.5 — is the max pain price.
Open interest by strike · Fri, Oct 30
■ calls (up)■ puts (down)SLV 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 ≈ 33.2% · 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
0.87
-0.04
49
0.0669
0.02
-0.04
-0.13
0.84
-0.04
49.5
0.0803
0.02
-0.04
-0.16
0.80
-0.04
50
0.0949
0.02
-0.05
-0.20
0.75
-0.05
50.5
0.1100
0.03
-0.05
-0.25
0.70
-0.06
51
0.1243
0.03
-0.06
-0.31
0.63
-0.06
51.5
0.1363
0.03
-0.06
-0.37
0.56
-0.06
52
0.1444
0.03
-0.06
-0.44
0.49
-0.06
52.5
0.1472
0.03
-0.06
-0.52
0.42
-0.06
53
0.1444
0.03
-0.06
-0.59
0.35
-0.06
53.5
0.1367
0.03
-0.06
-0.66
0.28
-0.05
54
0.1251
0.03
-0.05
-0.72
0.23
-0.05
54.5
0.1110
0.03
-0.05
-0.78
0.18
-0.04
55
0.0960
0.02
-0.04
-0.83
0.14
-0.03
55.5
0.0812
0.02
-0.03
-0.86
0.11
-0.03
56
0.0676
0.02
-0.03
-0.90
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 47 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.