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 — 70 — is the max pain price.
Open interest by strike · Fri, Oct 30
■ calls (up)■ puts (down)TEM 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 ≈ 87.3% · 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
-0.14
60
0.0294
0.03
-0.14
-0.21
0.76
-0.15
61
0.0322
0.03
-0.15
-0.24
0.73
-0.16
62
0.0347
0.04
-0.16
-0.28
0.69
-0.17
63
0.0368
0.04
-0.17
-0.31
0.65
-0.18
64
0.0386
0.04
-0.18
-0.35
0.61
-0.19
65
0.0400
0.04
-0.19
-0.40
0.57
-0.19
66
0.0409
0.04
-0.19
-0.44
0.53
-0.20
67
0.0414
0.04
-0.20
-0.48
0.48
-0.20
68
0.0413
0.04
-0.20
-0.52
0.45
-0.19
69
0.0409
0.04
-0.19
-0.56
0.41
-0.19
70
0.0400
0.04
-0.19
-0.60
0.37
-0.18
71
0.0388
0.04
-0.19
-0.63
0.33
-0.18
72
0.0374
0.04
-0.18
-0.67
0.30
-0.17
73
0.0356
0.04
-0.17
-0.70
0.27
-0.16
74
0.0337
0.04
-0.16
-0.73
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 54 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.