Event risk before this expiration:FOMC decision Wed, Oct 28 · Jobs report Fri, Nov 6 — 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 — 220 — is the max pain price.
Open interest by strike · Fri, Nov 6
■ calls (up)■ puts (down)BIIB open contracts per strike for Fri, Nov 6.
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 6
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Nov 6
— call IV— put IVATM ≈ 43.2% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Nov 6
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 6
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.90
-0.10
200
0.0054
0.10
-0.12
-0.10
0.88
-0.12
205
0.0067
0.12
-0.13
-0.12
0.85
-0.14
210
0.0083
0.14
-0.15
-0.15
0.80
-0.16
215
0.0101
0.16
-0.17
-0.20
0.75
-0.18
220
0.0120
0.18
-0.19
-0.25
0.69
-0.20
225
0.0138
0.20
-0.20
-0.31
0.61
-0.21
230
0.0153
0.22
-0.22
-0.39
0.54
-0.22
235
0.0161
0.23
-0.22
-0.47
0.46
-0.22
240
0.0161
0.23
-0.22
-0.55
0.38
-0.21
245
0.0154
0.22
-0.21
-0.62
0.31
-0.20
250
0.0142
0.20
-0.20
-0.69
0.25
-0.18
255
0.0126
0.19
-0.18
-0.75
0.20
-0.16
260
0.0110
0.16
-0.16
-0.80
0.16
-0.14
265
0.0094
0.14
-0.14
-0.84
0.13
-0.13
270
0.0079
0.12
-0.12
-0.88
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 16 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.