Biogen (BIIB) Options — Max Pain, Gamma Exposure (GEX) & Key Levels

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Expiration: Strikes:
Updated at 9/30/2026, 20:20:35
SPOT
$227.00
FORWARD
$226.47
DTE
4d
STM IV
32.4%
DNS SM
3.33%
IMPLIED MOVE
±5.42% ($12.25)
P/C OI
0.63
CALL OI
2,794
PUT OI
1,768
CALL VOL
91
PUT VOL
3
NET GEX
1.2M
TIMESTAMP
05:14:28 PM
Option Insights
Automated analysis based on options positioning, flow, and volatility structure.
Bullish
+60
−100 · Bearish0 · NeutralBullish · +100
KEY PRICE LEVELS
GAMMA
Positive Gamma Environment
Dealers are long gamma — they buy dips and sell rips, dampening moves. Expect mean-reversion and range-bound trading.
DEALER FLOW
Low Put/Call OI Ratio (0.63)
Call open interest dominates, indicating bullish positioning. Market makers may be short calls, creating upside fuel.
KEY LEVELS
Max Pain @ $200.0
Spot is 11.6% above Max Pain. Gravitational pull may increase as expiry approaches.
KEY LEVELS
Support $220.0 / Resistance $220.0
Put Wall at $220.0 acts as support. Call Wall at $220.0 acts as resistance. Net gamma concentration creates dealer hedging flows at these levels.
VOL STATUS
Expected Move (Straddle-mid): ±5.42% ($12.25)
ATM straddle-mid implies a ±5.42% move by expiry. Range: $213.88 — $238.37
Key Levels
OI concentration panel. Key price levels from dealer gamma positioning.
PUT WALL (SUPPORT)
$220
OI: 143
CALL WALL (RESISTANCE)
$220
OI: 354
MAX PAIN
$200
Expiry magnet
GAMMA FLIP
$207.6
Positive δ
SPOT
$227.00
FORWARD
$226.47
MIN IV PRICE
$190
Cumulative Gamma Exposure
Running sum of net GEX across strikes.
Cum. Call GEXCum. Put GEX
Dealer Gamma Exposure (GEX)
▲ Positive: 1.2M | Put Wall: $220 (143) | Call Wall: $220 (354)
Positive GEXNegative GEX
Greeks Exposure
Net gamma exposure by strike. Positive = dealers short gamma (mean-reversion).
PositiveNegativeNet
Volume Profile
Call and put trading volume by strike.
Call VolumePut Volume
Option Prices After-hrs $227.00 (+0.38%)
Hatched tomorrow-open change — tinted = gain, hollow = decay.
Call MidPut MidGainDecay
Profit Probability
Chance a long call (up) / put (down) finishes past breakeven by expiry.
Call POPPut POP
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