Event risk before this expiration:Jobs report Fri, Nov 6 · CPI release Tue, Nov 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 — 55 — is the max pain price.
Open interest by strike · Fri, Nov 20
■ calls (up)■ puts (down)BMRN open contracts per strike for Fri, Nov 20.
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, Nov 20
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Nov 20
— call IV— put IVATM ≈ 38.9% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Nov 20
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, Nov 20
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.95
-0.01
45
0.0136
0.01
-0.01
-0.05
0.92
-0.02
47.5
0.0235
0.02
-0.02
-0.09
0.85
-0.03
50
0.0385
0.03
-0.03
-0.16
0.73
-0.04
52.5
0.0572
0.05
-0.04
-0.27
0.57
-0.04
55
0.0711
0.06
-0.05
-0.44
0.39
-0.04
57.5
0.0700
0.06
-0.04
-0.62
0.25
-0.04
60
0.0561
0.04
-0.04
-0.77
0.15
-0.03
62.5
0.0399
0.03
-0.03
-0.87
0.10
-0.02
65
0.0272
0.03
-0.03
-0.93
0.06
-0.02
67.5
0.0184
0.02
-0.02
-0.97
0.04
-0.01
70
0.0126
0.01
-0.01
-0.99
0.03
-0.01
72.5
0.0088
0.01
-0.01
-1.00
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 12 strikes around the money — all 15 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.