Biogen Inc. (BIIB)
NASDAQ: BIIB
· Real-Time Price · USD
159.88
4.63 (2.98%)
At close: Oct 03, 2025, 3:59 PM
159.00
-0.55%
After-hours: Oct 03, 2025, 07:58 PM EDT
BIIB Open Interest Chart
Open interest breakdown by expiration date for BIIB
options contracts. Displaying data for 16
active expiration dates with future expiry.
Total open interest across all expiries is
67,017
contracts, with 41,695
call contracts and
25,322 put contracts.
Open Interest Table
| Expiry Date | Call OI | Put OI | P/C OI |
|---|---|---|---|
| Oct 10, 2025 | 867 | 293 | 0.34 |
| Oct 17, 2025 | 7,497 | 6,613 | 0.88 |
| Oct 24, 2025 | 385 | 200 | 0.52 |
| Oct 31, 2025 | 271 | 214 | 0.79 |
| Nov 7, 2025 | 50 | 13 | 0.26 |
| Nov 14, 2025 | 4 | 1 | 0.25 |
| Nov 21, 2025 | 2,146 | 1,494 | 0.70 |
| Dec 19, 2025 | 3,783 | 295 | 0.08 |
| Jan 16, 2026 | 15,135 | 9,115 | 0.60 |
| Mar 20, 2026 | 6,429 | 909 | 0.14 |
| Apr 17, 2026 | 105 | 36 | 0.34 |
| Jun 18, 2026 | 1,087 | 878 | 0.81 |
| Sep 18, 2026 | 132 | 1,038 | 7.86 |
| Dec 18, 2026 | 1,259 | 1,467 | 1.17 |
| Jan 15, 2027 | 2,505 | 2,633 | 1.05 |
| Jan 21, 2028 | 40 | 123 | 3.08 |