■ 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 — 80 — is the max pain price.
Open interest by strike · Fri, Dec 18
■ calls (up)■ puts (down)BUD 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 ≈ 25.0% · 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
0.94
-0.00
62.5
0.0085
0.06
-0.01
-0.07
0.91
-0.01
65
0.0112
0.08
-0.01
-0.09
0.88
-0.01
67.5
0.0145
0.10
-0.01
-0.12
0.84
-0.01
70
0.0184
0.12
-0.01
-0.16
0.79
-0.01
72.5
0.0227
0.14
-0.01
-0.21
0.73
-0.01
75
0.0270
0.16
-0.02
-0.28
0.66
-0.02
77.5
0.0308
0.17
-0.02
-0.35
0.58
-0.02
80
0.0335
0.18
-0.02
-0.43
0.49
-0.02
82.5
0.0346
0.19
-0.02
-0.52
0.41
-0.02
85
0.0339
0.18
-0.02
-0.61
0.33
-0.02
87.5
0.0318
0.17
-0.02
-0.70
0.27
-0.01
90
0.0285
0.16
-0.01
-0.77
0.21
-0.01
92.5
0.0248
0.14
-0.01
-0.84
0.17
-0.01
95
0.0211
0.12
-0.01
-0.90
0.10
-0.01
100
0.0145
0.09
-0.01
-0.98
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 30 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.