■ 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 — 107 — is the max pain price.
Open interest by strike · Fri, Oct 23
■ calls (up)■ puts (down)W 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 ≈ 60.7% · 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
0.85
-0.24
107
0.0347
0.02
-0.25
-0.15
0.81
-0.29
108
0.0405
0.03
-0.29
-0.19
0.77
-0.34
109
0.0462
0.03
-0.34
-0.23
0.72
-0.38
110
0.0517
0.04
-0.38
-0.28
0.67
-0.41
111
0.0566
0.04
-0.42
-0.33
0.61
-0.44
112
0.0606
0.04
-0.44
-0.39
0.55
-0.45
113
0.0634
0.04
-0.45
-0.45
0.48
-0.45
114
0.0644
0.04
-0.45
-0.52
0.42
-0.43
115
0.0636
0.04
-0.43
-0.58
0.36
-0.41
116
0.0610
0.04
-0.41
-0.64
0.30
-0.37
117
0.0570
0.04
-0.37
-0.70
0.25
-0.33
118
0.0518
0.03
-0.33
-0.76
0.20
-0.28
119
0.0460
0.03
-0.29
-0.80
0.16
-0.24
120
0.0399
0.03
-0.24
-0.84
0.13
-0.21
121
0.0341
0.02
-0.21
-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 55 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.