Event risk before this expiration:FOMC decision Wed, Sep 16 · Jobs report Fri, Oct 2 · CPI release Wed, Oct 14 · FOMC decision Wed, Oct 28 · Jobs report Fri, Nov 6 · CPI release Tue, Nov 10 · Jobs report Fri, Dec 4 · FOMC decision Wed, Dec 9 · CPI release Thu, Dec 10 — macro releases historically overwhelm pinning effects; max pain reads weakest in event weeks.
■ 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 — 85 — is the max pain price.
Open interest by strike · Fri, Dec 18
■ calls (up)■ puts (down)BFH 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 ≈ 39.7% · 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
0.87
-0.03
82.5
0.0077
0.12
-0.03
-0.13
0.85
-0.03
85
0.0087
0.13
-0.03
-0.15
0.82
-0.03
87.5
0.0099
0.14
-0.03
-0.17
0.80
-0.04
90
0.0111
0.15
-0.04
-0.20
0.77
-0.04
92.5
0.0124
0.17
-0.04
-0.23
0.74
-0.04
95
0.0138
0.18
-0.04
-0.26
0.66
-0.04
100
0.0163
0.20
-0.04
-0.34
0.57
-0.04
105
0.0182
0.21
-0.04
-0.43
0.48
-0.04
110
0.0189
0.22
-0.04
-0.52
0.39
-0.04
115
0.0183
0.21
-0.04
-0.61
0.32
-0.04
120
0.0168
0.20
-0.04
-0.69
0.20
-0.03
130
0.0127
0.15
-0.03
-0.81
0.16
-0.03
135
0.0108
0.14
-0.03
-0.85
0.13
-0.03
140
0.0092
0.12
-0.03
-0.88
0.06
-0.01
160
0.0047
0.07
-0.02
-0.96
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 21 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.