■ 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 — 50 — is the max pain price.
Open interest by strike · Fri, Dec 18
■ calls (up)■ puts (down)KNX 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 ≈ 37.4% · 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
0.91
-0.01
55
0.0094
0.07
-0.01
-0.09
0.88
-0.01
57.5
0.0118
0.08
-0.01
-0.12
0.84
-0.01
60
0.0145
0.10
-0.02
-0.16
0.80
-0.02
62.5
0.0172
0.12
-0.02
-0.20
0.75
-0.02
65
0.0199
0.13
-0.02
-0.25
0.69
-0.02
67.5
0.0223
0.15
-0.02
-0.31
0.64
-0.02
70
0.0242
0.16
-0.02
-0.37
0.57
-0.02
72.5
0.0255
0.17
-0.02
-0.43
0.51
-0.02
75
0.0261
0.17
-0.03
-0.50
0.45
-0.02
77.5
0.0260
0.17
-0.02
-0.57
0.39
-0.02
80
0.0252
0.16
-0.02
-0.63
0.33
-0.02
82.5
0.0239
0.15
-0.02
-0.69
0.28
-0.02
85
0.0222
0.14
-0.02
-0.74
0.20
-0.02
90
0.0182
0.12
-0.02
-0.83
0.14
-0.01
95
0.0142
0.09
-0.01
-0.90
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 32 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.