■ 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 — 892.5 — is the max pain price.
Open interest by strike · Fri, Oct 23
■ calls (up)■ puts (down)GS open contracts per strike for Fri, Oct 23.
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 23
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Oct 23
— call IV— put IVATM ≈ 40.4% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Oct 23
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 23
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.87
-1.25
865
0.0101
0.10
-1.26
-0.13
0.82
-1.93
870
0.0132
0.13
-1.93
-0.18
0.75
-2.92
875
0.0162
0.15
-2.92
-0.25
0.71
-3.54
877.5
0.0177
0.17
-3.54
-0.29
0.66
-4.20
880
0.0189
0.18
-4.20
-0.34
0.61
-4.83
882.5
0.0199
0.18
-4.83
-0.39
0.56
-5.31
885
0.0206
0.19
-5.31
-0.44
0.51
-5.51
887.5
0.0210
0.19
-5.51
-0.49
0.46
-5.37
890
0.0210
0.19
-5.38
-0.54
0.41
-4.93
892.5
0.0206
0.19
-4.94
-0.59
0.36
-4.29
895
0.0199
0.18
-4.31
-0.65
0.31
-3.59
897.5
0.0188
0.17
-3.61
-0.69
0.26
-2.92
900
0.0175
0.16
-2.95
-0.74
0.19
-1.86
905
0.0143
0.13
-1.92
-0.82
0.15
-1.47
907.5
0.0126
0.12
-1.55
-0.85
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.