■ 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 — 57.5 — is the max pain price.
Open interest by strike · Fri, Dec 18
■ calls (up)■ puts (down)WIX open contracts per strike for Fri, Dec 18.
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, Dec 18
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Dec 18
— call IV— put IVATM ≈ 74.1% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Dec 18
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, Dec 18
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.78
-0.04
62.5
0.0080
0.14
-0.04
-0.21
0.76
-0.04
65
0.0085
0.15
-0.04
-0.24
0.73
-0.04
67.5
0.0091
0.15
-0.04
-0.26
0.70
-0.04
70
0.0096
0.16
-0.05
-0.29
0.68
-0.05
72.5
0.0101
0.17
-0.05
-0.32
0.65
-0.05
75
0.0105
0.17
-0.05
-0.35
0.62
-0.05
77.5
0.0108
0.18
-0.05
-0.38
0.59
-0.05
80
0.0111
0.18
-0.05
-0.40
0.56
-0.05
82.5
0.0113
0.18
-0.05
-0.43
0.54
-0.05
85
0.0114
0.19
-0.05
-0.46
0.51
-0.05
87.5
0.0114
0.19
-0.05
-0.49
0.48
-0.05
90
0.0114
0.19
-0.05
-0.51
0.46
-0.05
92.5
0.0114
0.19
-0.05
-0.54
0.44
-0.05
95
0.0113
0.18
-0.05
-0.56
0.41
-0.05
97.5
0.0111
0.18
-0.05
-0.59
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 39 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.