BIIB weekly stock returns with week-by-week price performance and historical return data.
| Period | Return % |
|---|---|
| 2017 | 3.21 |
| 2017 | -3.6 |
| 2017 | -1.27 |
| 2017 | -0.76 |
| 2017 | -4.89 |
| 2017 | 3.89 |
| 2017 | 4.58 |
| 2017 | -1.39 |
| 2017 | 4.37 |
| 2017 | -1.63 |
| 2017 | -5.3 |
| 2017 | -0.74 |
| 2017 | 0.32 |
| 2017 | -1.95 |
| 2017 | 1.19 |
| 2017 | 0.53 |
| 2017 | -1.35 |
| 2017 | -3.39 |
| 2017 |
In the last 52 weeks, BIIB increased in 28 and decreased in 24. The average return for this period was +0.34%, while the median return was +0.62%. Maximum gain was +16.28% on 2025-10-03 and maximum loss was -10.82% on 2025-04-04.
Total : 52 Weeks
In the last 52 weeks, BIIB increased in 28 and decreased in 24. The average return for this period was +0.34%, while the median return was +0.62%. Maximum gain was +16.28% on 2025-10-03 and maximum loss was -10.82% on 2025-04-04.
In the last 52 weeks, BIIB increased in 28 and decreased in 24. The average return for this period was +0.34%, while the median return was +0.62%. Maximum gain was +16.28% on 2025-10-03 and maximum loss was -10.82% on 2025-04-04.
| 2025-12-26 | 174.8 | 177.1 | +1.3% |
| 2025-12-19 | 173.7 | 174.8 | +0.7% |
| 2025-12-12 | 181.3 | 174.1 | -4.0% |
| 2025-12-05 | 180.2 | 181.3 | +0.6% |
| 2025-11-28 | 177.7 | 182.1 | +2.5% |
| 2025-11-21 | 167.0 | 175.3 | +5.0% |
| 2025-11-14 | 155.4 | 167.6 | +7.8% |
| 2025-11-07 | 153.6 | 155.5 | +1.2% |
| 2025-10-31 | 150.1 | 154.3 | +2.8% |
| 2025-10-24 | 143.3 | 149.9 | +4.6% |
| 2025-10-17 | 146.5 | 143.0 | -2.4% |
| 2025-10-10 | 159.6 | 146.6 | -8.2% |
| 2025-10-03 | 137.5 | 159.9 | +16.3% |
| 2025-09-26 | 142.1 | 137.4 | -3.3% |
| 2025-09-19 | 144.8 | 142.5 | -1.6% |
| 2025-09-12 | 140.0 | 144.9 | +3.5% |
| 2025-09-05 | 133.6 | 140.7 | +5.3% |
| 2025-08-29 | 139.0 | 132.2 | -4.9% |
| 2025-08-22 | 140.0 | 139.3 | -0.5% |
| 2025-08-15 | 131.2 | 138.6 | +5.7% |
| 2025-08-08 | 132.3 | 130.7 | -1.3% |
| 2025-08-01 | 131.4 | 132.0 | +0.5% |
| 2025-07-25 | 125.0 | 131.5 | +5.2% |
| 2025-07-18 | 133.6 | 125.0 | -6.4% |
| 2025-07-11 | 132.1 | 134.2 | +1.6% |
| 2025-07-03 | 126.3 | 132.9 | +5.2% |
| 2025-06-27 | 126.9 | 126.1 | -0.6% |
| 2025-06-20 | 131.5 | 127.0 | -3.4% |
| 2025-06-13 | 134.1 | 130.7 | -2.5% |
| 2025-06-06 | 129.6 | 133.1 | +2.7% |
| -2.93 |
| 2017 | -1.53 |
| 2017 | 0.04 |
| 2017 | 2.5 |
| 2017 | 0.98 |
| 2017 | -3.26 |
| 2017 | 10.7 |
| 2017 | -3.68 |
| 2017 | 0.48 |
| 2017 | 2.67 |
| 2017 | 1.01 |
| 2017 | 1.57 |
| 2017 | 0.23 |
| 2017 | -1.9 |
| 2017 | -1.16 |
| 2017 | 1.46 |
| 2017 | 11.42 |
| 2017 | 2.42 |
| 2017 | -2.53 |
| 2017 | -0.95 |
| 2017 | -1.62 |
| 2017 | 3.9 |
| 2017 | 3.11 |
| 2017 | 0.11 |
| 2017 | -8.21 |
| 2017 | 2.08 |
| 2017 | -1.26 |
| 2017 | 1.13 |
| 2017 | -1.48 |
| 2017 | 2.99 |
| 2017 | 2.06 |
| 2017 | 0.26 |
| 2017 | -3.08 |
| 2017 | -0.28 |
| 2018 | 6.64 |
| 2018 | -1.61 |
| 2018 | 1.42 |
| 2018 | 7.08 |
| 2018 | -5.84 |
| 2018 | -8.07 |
| 2018 | -8.58 |
| 2018 | 0.27 |
| 2018 | -2.39 |
| 2018 | 0.68 |
| 2018 | 0.57 |
| 2018 | -8.99 |
| 2018 | 4.02 |
| 2018 | -5.28 |
| 2018 | 2.75 |
| 2018 | -1.65 |
| 2018 | 5.19 |
| 2018 | -2.61 |
| 2018 | 4.15 |
| 2018 | -0.69 |
| 2018 | 1.72 |
| 2018 | 4.75 |
| 2018 | 2.1 |
| 2018 | 0.75 |
| 2018 | 0.68 |
| 2018 | -1.92 |
| 2018 | 23.14 |
| 2018 | -2.64 |
| 2018 | 2.84 |
| 2018 | -5.1 |
| 2018 | 1.08 |
| 2018 | -0.01 |
| 2018 | 0.42 |
| 2018 | -1.5 |
| 2018 | 2.97 |
| 2018 | -4.01 |
| 2018 | -1.17 |
| 2018 | 2.02 |
| 2018 | 3.01 |
| 2018 | -3.72 |
| 2018 | -2.86 |
| 2018 | -2.9 |
| 2018 | -6.87 |
| 2018 | 2.72 |
| 2018 | 3.51 |
| 2018 | -0.26 |
| 2018 | -1.55 |
| 2018 | 3.74 |
| 2018 | -5.45 |
| 2018 | -1.07 |
| 2018 | -11.05 |
| 2018 | 4.39 |
| 2019 | 8.07 |
| 2019 | 4.36 |
| 2019 | 1.85 |
| 2019 | 0.51 |
| 2019 | -1.28 |
| 2019 | -4.9 |
| 2019 | 5.3 |
| 2019 | -1.66 |
| 2019 | 1.88 |
| 2019 | -8.24 |
| 2019 | 7 |
| 2019 | -34.04 |
| 2019 | 7.44 |
| 2019 | 1.11 |
| 2019 | -3.03 |
| 2019 | -3.68 |
| Date | Open | High | Low | Close | Volume |
|---|---|---|---|---|---|
| 2026-07-13 | 199.33 | 210.87 | 197.74 | 209.03 | — |
| 2026-07-10 | 197.63 | 199.98 | 194.37 | 199.15 | — |
| 2026-07-09 | 198.92 | 201 | 196 | 198.91 | — |
| 2026-07-08 | 204.86 | 206.75 | 198.93 | 200.36 | — |
| 2026-07-07 | 211.86 | 212 | 205.65 | 205.7 | — |
| 2026-07-06 | 215.95 | 215.95 | 208.27 | 208.46 | — |
| 2026-07-02 | 212.53 | 219 | 210.75 | 216.12 | — |
| 2026-07-01 | 215.25 | 215.76 | 209.67 | 209.74 | — |
| 2026-06-30 | 218 | 218 | 212.58 | 216.06 | — |
| 2026-06-29 | 215.01 | 219.72 | 214.08 | 216.63 | — |
| 2026-06-26 | 202.99 | 218.06 | 202.29 | 216.03 | — |
| 2026-06-25 | 201.63 | 206.66 | 200.2 | 201.96 | — |
| 2026-06-24 | 199.34 | 202.06 | 198.66 | 199.59 | — |
| 2026-06-23 | 198.87 | 201.22 | 197.01 | 197.19 | — |
| 2026-06-22 | 199.48 | 200.98 | 194.74 | 199.71 | — |
| 2026-06-18 | 200.22 | 200.99 | 193.2 | 196.58 | — |
| 2026-06-17 | 195.14 | 201.75 | 194.04 | 198.67 | — |
| 2026-06-16 | 199.69 | 200.26 | 194.04 | 195.61 | — |
| 2026-06-15 | 199.09 | 199.37 | 195.89 | 198.64 | — |
| 2026-06-12 | 201.29 | 203.45 | 199.06 | 200.05 | — |
| 2026-06-11 | 195.49 | 201.18 | 194.24 | 199.96 | — |
| 2026-06-10 | 200.12 | 201.94 | 194.1 | 194.24 | — |
| 2026-06-09 | 195.51 | 199.63 | 193.48 | 199.1 | — |
| 2026-06-05 | 196.45 | 200.66 | 195.14 | 195.34 | — |
| 2026-06-04 | 198 | 199.9 | 196.35 | 196.45 | — |
| 2026-06-03 | 187.69 | 196.36 | 187.48 | 195.96 | — |
| 2026-06-02 | 190 | 190.58 | 184.96 | 188.83 | — |
| 2026-06-01 | 194.5 | 195.28 | 191.67 | 192.23 | — |
| 2026-05-29 | 195.55 | 198.46 | 195.18 | 196 | — |
| 2026-05-28 | 196.97 | 198 | 194.5 | 196.39 | — |
| 2026-05-27 | 194.11 | 199.72 | 194.11 | 196.97 | — |
| 2026-05-22 | 190.53 | 194.75 | 190.01 | 193.76 | — |
| 2026-05-21 | 187.4 | 190.27 | 185.85 | 189.47 | — |
| 2026-05-20 | 191.41 | 193.38 | 186.37 | 187.8 | — |
| 2026-05-19 | 191.65 | 193.03 | 188.64 | 190.56 | — |
| 2026-05-18 | 191.25 | 193.37 | 189.19 | 191.91 | — |
| 2026-05-15 | 191.83 | 194.88 | 190.72 | 192.95 | — |
| 2026-05-14 | 200.25 | 205 | 189.49 | 191.37 | — |
| 2026-05-13 | 199.33 | 205.97 | 198.9 | 204.53 | — |
| 2026-05-12 | 198.45 | 202.4 | 196.47 | 199.36 | — |
| 2026-05-11 | 194.76 | 200.31 | 194.75 | 197.95 | — |
| 2026-05-08 | 189.68 | 195.2 | 189.5 | 193.45 | — |
| 2026-05-07 | 190.34 | 192.1 | 188.86 | 191.38 | — |
| 2026-05-06 | 189.13 | 191.16 | 188.3 | 190.68 | — |
| 2026-05-05 | 187.38 | 189.69 | 186 | 189.13 | — |
| 2026-05-04 | 186.28 | 187.51 | 185.44 | 187.21 | — |
| 2026-05-01 | 189.28 | 190.57 | 186.17 | 187.06 | — |
| 2026-04-30 | 194.04 | 195.98 | 187.16 | 189.28 | — |
| 2026-04-29 | 183.12 | 195.89 | 180.18 | 194.38 | — |
| 2026-04-28 | 182.45 | 184.41 | 181.89 | 183.38 | — |
| 2026-04-27 | 183.16 | 186.15 | 179.15 | 180.67 | — |
| 2026-04-24 | 186.65 | 186.65 | 183.17 | 184.38 | — |
| 2026-04-23 | 189.46 | 190.32 | 187.01 | 187.88 | — |
| 2026-04-22 | 188.81 | 192.75 | 188.71 | 190.07 | — |
| 2026-04-21 | 184.52 | 187.74 | 181.75 | 185.95 | — |
| 2026-04-20 | 179.54 | 184.26 | 178.94 | 183.34 | — |
| 2026-04-17 | 176.29 | 178.4 | 175.69 | 177.35 | — |
| 2026-04-16 | 178.68 | 179.5 | 174.85 | 176.02 | — |
| 2026-04-15 | 179.36 | 180.87 | 177.7 | 180.54 | — |
| 2026-04-14 | 177.71 | 181.77 | 177.45 | 178.96 | — |
| 2026-04-13 | 172.62 | 176.79 | 171.22 | 176.37 | — |
| 2026-04-10 | 177.97 | 177.97 | 172.32 | 172.97 | — |
| 2026-04-09 | 177.81 | 180.06 | 174.96 | 177.11 | — |
| 2026-04-08 | 178.24 | 180.17 | 176.35 | 179.9 | — |
| 2026-04-07 | 172.21 | 175.61 | 170.43 | 175.61 | — |
| 2026-04-06 | 177 | 177 | 168.64 | 172.34 | — |
| 2026-04-02 | 181.46 | 182.23 | 176.39 | 177.34 | — |
| 2026-04-01 | 183.17 | 186.31 | 181.71 | 183.78 | — |
| 2026-03-31 | 179.46 | 184.68 | 171.37 | 183.33 | — |
| 2026-03-30 | 186.16 | 190.09 | 185.55 | 187.57 | — |
| 2026-03-27 | 191.06 | 191.06 | 183.01 | 183.84 | — |
| 2026-03-26 | 189 | 192.27 | 188.35 | 191.06 | — |
| 2026-03-25 | 184.91 | 189.38 | 184.91 | 189.18 | — |
| 2026-03-24 | 182.63 | 184.84 | 180.33 | 183.94 | — |
| 2026-03-23 | 183.48 | 185 | 183.02 | 183.64 | — |
| 2026-03-20 | 183.13 | 183.69 | 180.48 | 181.46 | — |
| 2026-03-19 | 182.18 | 185.45 | 181.68 | 183.41 | — |
| 2026-03-18 | 184.13 | 184.32 | 180.48 | 182.31 | — |
| 2026-03-17 | 184.73 | 186.52 | 183.2 | 185.29 | — |
| 2026-03-16 | 182.76 | 184.62 | 181.88 | 183.26 | — |
| 2026-03-13 | 185.99 | 188 | 181.46 | 181.55 | — |
| 2026-03-12 | 187.86 | 188.91 | 184.63 | 184.9 | — |
| 2026-03-11 | 187.54 | 192.99 | 187.54 | 190.48 | — |
| 2026-03-10 | 187.69 | 190.78 | 187.02 | 188.41 | — |
| 2026-03-09 | 183.91 | 188.5 | 182.6 | 188.24 | — |
| 2026-03-06 | 186.25 | 186.25 | 181.24 | 184.87 | — |
| 2026-03-05 | 187.97 | 190.99 | 185.95 | 188.08 | — |
| 2026-03-04 | 185.06 | 190.37 | 183.16 | 189.94 | — |
| 2026-03-03 | 185.01 | 187.05 | 181.79 | 184.02 | — |
| 2026-03-02 | 190.22 | 190.75 | 186.72 | 188.05 | — |
| 2026-02-27 | 187.51 | 192.46 | 186.62 | 191.82 | — |
| 2026-02-26 | 190.3 | 190.74 | 185.9 | 188.02 | — |
| 2026-02-25 | 194.23 | 196.73 | 189.89 | 190.73 | — |
| 2026-02-25 | 194.23 | 196.73 | 189.89 | 190.73 | — |
| 2026-02-25 | 194.23 | 196.73 | 189.89 | 190.73 | — |
| 2026-02-24 | 196.03 | 198.72 | 194.43 | 195.13 | — |
| 2026-02-23 | 191.82 | 197.05 | 189.11 | 196.34 | — |
| 2026-02-20 | 190.78 | 192.6 | 189.95 | 192.03 | — |
| 2026-02-19 | 193.51 | 195 | 191.05 | 192.08 | — |
| 2026-02-18 | 195.32 | 195.68 | 193.11 | 194.13 | — |
| 2026-02-17 | 197.46 | 200.29 | 193.37 | 195.62 | — |
| 2026-02-13 | 196.27 | 199.5 | 195.52 | 196.52 | — |
| 2026-02-12 | 190.15 | 196 | 189 | 195.5 | — |
| 2026-02-11 | 188.35 | 192 | 187.2 | 191.2 | — |
| 2026-02-10 | 194.07 | 195.72 | 188.74 | 188.99 | — |
| 2026-02-09 | 199.83 | 201 | 191.88 | 193.81 | — |
| 2026-02-06 | 187.01 | 202.41 | 184.6 | 201.18 | — |
| 2026-02-05 | 184.87 | 187.73 | 184.54 | 185.36 | — |
| 2026-02-04 | 177.25 | 186.24 | 177.1 | 185.45 | — |
| 2026-02-03 | 177.79 | 182.67 | 176.19 | 176.76 | — |
| 2026-02-02 | 179.3 | 180.76 | 177.58 | 179.09 | — |
| 2026-01-30 | 177.09 | 180.14 | 175.96 | 179.89 | — |
| 2026-01-29 | 174.88 | 177.2 | 173.51 | 176.18 | — |
| 2026-01-28 | 173.63 | 175.06 | 170.85 | 174.83 | — |
| 2026-01-27 | 173.02 | 176.14 | 172.23 | 174.12 | — |
| 2026-01-26 | 171.67 | 174.31 | 170.59 | 173.12 | — |
| 2026-01-23 | 173.17 | 173.9 | 170.04 | 171.59 | — |
| 2026-01-22 | 171.78 | 175.29 | 171.65 | 173.8 | — |
| 2026-01-21 | 165.31 | 172.87 | 165.31 | 172.62 | — |
| 2026-01-20 | 161.51 | 165.61 | 160.36 | 165.38 | — |