■ 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 — 105 — is the max pain price.
Open interest by strike · Fri, Dec 15
■ calls (up)■ puts (down)KNX open contracts per strike for Fri, Dec 15.
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 15
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Dec 15
— call IV— put IVATM ≈ 38.9% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Dec 15
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 15
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.91
—
40
0.0034
0.17
-0.00
-0.09
0.81
-0.00
55
0.0062
0.29
-0.01
-0.19
0.77
-0.01
60
0.0070
0.32
-0.01
-0.24
0.75
-0.01
62.5
0.0074
0.34
-0.01
-0.26
0.73
-0.01
65
0.0077
0.35
-0.01
-0.28
0.71
-0.01
67.5
0.0081
0.37
-0.01
-0.31
0.69
-0.01
70
0.0084
0.38
-0.01
-0.33
0.67
-0.01
72.5
0.0086
0.39
-0.01
-0.35
0.65
-0.01
75
0.0089
0.40
-0.01
-0.38
0.63
-0.01
77.5
0.0091
0.41
-0.01
-0.41
0.60
-0.01
80
0.0093
0.41
-0.01
-0.43
0.58
-0.01
82.5
0.0095
0.42
-0.01
-0.46
0.56
-0.01
85
0.0096
0.42
-0.01
-0.48
0.54
-0.01
87.5
0.0097
0.43
-0.01
-0.51
0.41
-0.01
105
0.0097
0.42
-0.01
-0.69
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 17 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.