■ 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 — 97 — is the max pain price.
Open interest by strike · Fri, Oct 23
■ calls (up)■ puts (down)SE 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 ≈ 49.4% · 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
0.88
-0.09
87
0.0315
0.03
-0.09
-0.12
0.85
-0.10
88
0.0378
0.03
-0.11
-0.15
0.81
-0.12
89
0.0445
0.04
-0.12
-0.20
0.76
-0.14
90
0.0514
0.04
-0.14
-0.24
0.71
-0.15
91
0.0578
0.04
-0.15
-0.30
0.65
-0.16
92
0.0631
0.05
-0.16
-0.36
0.58
-0.17
93
0.0669
0.05
-0.17
-0.42
0.51
-0.17
94
0.0686
0.05
-0.17
-0.49
0.45
-0.17
95
0.0681
0.05
-0.17
-0.56
0.38
-0.16
96
0.0655
0.05
-0.17
-0.63
0.32
-0.15
97
0.0612
0.05
-0.15
-0.69
0.27
-0.14
98
0.0556
0.04
-0.14
-0.74
0.22
-0.13
99
0.0494
0.04
-0.13
-0.79
0.18
-0.11
100
0.0431
0.03
-0.11
-0.83
0.14
-0.10
101
0.0369
0.03
-0.10
-0.87
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.