Biogen Inc. (BIIB)
NASDAQ: BIIB
· Real-Time Price · USD
138.66
3.72 (2.76%)
At close: Aug 15, 2025, 3:59 PM
139.59
0.67%
After-hours: Aug 15, 2025, 07:58 PM EDT
BIIB Open Interest Chart
Open interest breakdown by expiration date for BIIB
options contracts. Displaying data for 13
active expiration dates with future expiry.
Total open interest across all expiries is
54,721
contracts, with 35,006
call contracts and
19,715 put contracts. The
overall put-call open interest ratio is
0.56, indicating a
bullish
bias in positioning. Options expire from
Aug 22, 2025
to
Jan 15, 2027.
Open Interest Table
| Expiry Date | Call OI | Put OI | P/C OI |
|---|---|---|---|
| Aug 22, 2025 | 336 | 329 | 0.98 |
| Aug 29, 2025 | 628 | 297 | 0.47 |
| Sep 5, 2025 | 111 | 108 | 0.97 |
| Sep 12, 2025 | 75 | 177 | 2.36 |
| Sep 19, 2025 | 8,922 | 4,818 | 0.54 |
| Sep 26, 2025 | 14 | 12 | 0.86 |
| Oct 17, 2025 | 3,437 | 1,359 | 0.40 |
| Jan 16, 2026 | 13,823 | 7,307 | 0.53 |
| Mar 20, 2026 | 1,369 | 580 | 0.42 |
| Jun 18, 2026 | 711 | 447 | 0.63 |
| Sep 18, 2026 | 42 | 228 | 5.43 |
| Dec 18, 2026 | 1,240 | 1,465 | 1.18 |
| Jan 15, 2027 | 4,298 | 2,588 | 0.60 |