BIIB $229.41 pinning levels as of 2026-10-12 · 16:26 ET (after hours)

$BIIB

Biogen Inc · Biotechnology · $33.9B

▲ +3.70   (+1.64%)
Snapshot $229.41 · +25.9% above flip · pinning 2026-10-12 · 16:26 ET (after hours)

The Levels

Put Wall $200 held 15 sessions
Gamma Flip $182 +25.9% above flip
Call Wall $230 held 2 sessions
spot $229.41

Regime pinning · moves get faded back to the walls.

Each wall is the strike carrying the heaviest open interest within 15% of price, call above as resistance, put below as support, pooled across all listed expirations. It is a structural positioning level, not a single expiry pin. Max pain is tracked separately.

The Read

Next session: dealers are pinning BIIB between $200 and $230. Moves toward the walls tend to get faded.

Where the market is positioned


Talk to the oracle

Ask Nĩr about $BIIB.

Free. No login. Real dealer positioning on $BIIB, with scored outcomes and historical backtests.

IV percentile · 1y 78 · premium elevated Earnings · 16d out ±5.3% implied · +2.3pt vs history Put / call · OI · all expiries 0.85 · calls-heavy

Plays at the Walls

Covered Call

$245 · Nov 13

21%/yr annualized

Cash-Secured Put

$220 · Nov 6

45%/yr annualized

Not investment advice · Informational only


How our calls on $BIIB have played out

Over the last 21 sessions · n=28

28 Walls Called
8 Held 100% 2 pinned · 6 rejected
0 Broke 0%
20 Untested

$230 call wall

held 4 sessions running


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Scored Levels


Implied vs Measured


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