Event risk before this expiration:FOMC decision Wed, Oct 28 · Jobs report Fri, Nov 6 · CPI release Tue, Nov 10 — 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 — 920 — is the max pain price.
Open interest by strike · Fri, Nov 20
■ calls (up)■ puts (down)GS open contracts per strike for Fri, Nov 20.
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, Nov 20
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Nov 20
— call IV— put IVATM ≈ 32.9% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Nov 20
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, Nov 20
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.69
-0.49
855
0.0042
0.89
-0.51
-0.31
0.67
-0.51
860
0.0043
0.91
-0.52
-0.33
0.65
-0.52
865
0.0044
0.93
-0.53
-0.35
0.63
-0.53
870
0.0046
0.95
-0.54
-0.38
0.60
-0.53
875
0.0046
0.97
-0.55
-0.40
0.58
-0.54
880
0.0047
0.98
-0.55
-0.42
0.56
-0.55
885
0.0048
0.99
-0.56
-0.45
0.53
-0.55
890
0.0049
1.00
-0.56
-0.47
0.51
-0.55
895
0.0049
1.00
-0.56
-0.50
0.48
-0.55
900
0.0049
1.00
-0.55
-0.52
0.43
-0.54
910
0.0049
0.99
-0.54
-0.57
0.41
-0.53
915
0.0048
0.98
-0.53
-0.60
0.39
-0.52
920
0.0048
0.96
-0.52
-0.62
0.36
-0.51
925
0.0047
0.94
-0.51
-0.65
0.34
-0.50
930
0.0046
0.92
-0.50
-0.67
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 60 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.