Biogen Stock (BIIB)
Showing Closing Date Range from Nov 4 to Nov 11, 2026 compared to Oct 27 to Nov 3, 2026.
Compare Last 7 Days with Previous Period
Investor Relations:biogen.com
Current Period Close
$253.40
Nov 04, 2026 - Nov 11, 2026
Previous Period Close
$248.93
Oct 27, 2026 - Nov 03, 2026
Net Comparison Delta
+$4.47 (+1.80%)
Relative performance vs prior benchmark
Historical Quotes & Breakdown(6 dates)
| Current Date | Current Close | Previous Date | Previous Close | Delta (%) |
|---|---|---|---|---|
| Nov 11, 2026 | $253.40 | Nov 03, 2026 | $248.93 | +1.80% |
| Nov 10, 2026 | $253.25 | Nov 02, 2026 | $249.01 | +1.70% |
| Nov 09, 2026 | $254.87 | Oct 30, 2026 | $253.62 | +0.49% |
| Nov 06, 2026 | $248.35 | Oct 29, 2026 | $249.65 | -0.52% |
| Nov 05, 2026 | $243.93 | Oct 28, 2026 | $244.05 | -0.05% |
| Nov 04, 2026 | $254.46 | Oct 27, 2026 | $252.73 | +0.68% |