UNĨR
BIIB $191.72 balanced levels 2026-07-14 · 12:10 ET

$BIIB

Biogen Inc · Biotechnology · $30.9B

$191.72
▼ -17.31   (-8.28%)
Snapshot $191.72 · · 2026-07-14 · 12:10 ET

The Levels

Put Wall $180 held 4 sessions
Gamma Flip $190 +0.7% from flip — on the edge
Call Wall $210 held 3 sessions · 0.786 fib confluence
spot $191.72

Regime balanced · no clear edge from positioning.

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

$BIIB is in long gamma at a calm heat 31, which means dealers are pinning moves and damping volatility. The $210 call wall is fresh today but has held 76% of tests previously, while the $180 put wall also holds strong at 78%, suggesting these levels act as reliable support and resistance. Spot stands 6.4% above its gamma flip at $181.05, so any pullback likely meets solid buying interest.

Where the market is positioned

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Free. No login. Real dealer positioning on $BIIB, scored over a year of outcomes.

IV percentile · 1y 88 · premium rich Earnings · 15d out ±5.3% implied · +1.7pt vs history Put / call · OI · all expiries 0.75 · calls-heavy

Plays at the Walls

Covered Call

$205 · Aug 14 · 32Δ

$4.53 premium  ·  29%/yr annualized

Cash-Secured Put

$180 · Aug 21 · 30Δ

$5.65 premium  ·  31%/yr annualized

Not investment advice · Informational only

How our calls on $BIIB have played out

Over the last 21 sessions · n=24

24 Walls Called
4 Held 80% 0 pinned · 4 rejected
1 Broke 20%
19 Untested
Worst Miss

$210 call wall

broke 2.9% on 2026-06-26

Read the methodology →

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Scored Levels

Implied vs Measured

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