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Biogen Inc BIIB 217.15 1.72 0.8%

Previous-day view · Fri Sep 11 close. You are previewing the previous trading day. Subscribe to see today live and every other date — plans start at Delta, $39/mo. Sign up Sign in
Group
Window
Scale
Plotted 3/8
Metric library

Volatility

Interactive timeline

BIIB / Comparative study

3 signals / 503 sessions
Window statistics

Signal snapshot

Current value vs. selected history
IV Rank z -0.79
22.62
Mean
36.59
Window
-7.9%
ATM IV z -0.51
0.34
Mean
0.36
Window
+17.8%
IV Percentile z -0.91
32.54
Mean
57.79
Window
-37.4%
Relationship matrix

Correlation

Pearson r
Signal IV Rank ATM IV IV Percent...
IV Rank 1.00 0.86 0.91
ATM IV 0.86 1.00 0.77
IV Percent... 0.91 0.77 1.00
Source observations

Data inspector

1-50 of 503
  • 1 / 11
Date Close IV Rank ATM IV IV Percentile
2026-09-11 217.15 22.62 0.34 32.54
2026-09-10 215.43 23.6 0.34 33.73
2026-09-09 210.73 25.31 0.34 38.89
2026-09-08 212.5 23.23 0.34 34.13
2026-09-07 220.9 18.21 0.32 17.53
2026-09-04 220.83 14.37 0.31 7.94
2026-09-03 224.51 13.77 0.31 5.95
2026-09-02 222.67 20.35 0.33 23.41
2026-09-01 216.04 15.85 0.32 11.55
2026-08-31 216.65 19.87 0.33 21.6
2026-08-28 218.5 17.21 0.32 15.14
2026-08-27 221.5 10 0.3 1.59
2026-08-26 221.07 11.84 0.3 3.19
2026-08-25 220.77 13.93 0.31 5.18
2026-08-24 218.12 11 0.3 2.4
2026-08-21 216.78 17.88 0.32 15.94
2026-08-20 214.35 23.76 0.34 33.86
2026-08-19 221.56 13.61 0.31 4.78
2026-08-18 212.55 18.28 0.32 17.53
2026-08-17 209.15 19.39 0.33 19.6
2026-08-14 209.83 12.28 0.3 3.19
2026-08-13 210.65 19.47 0.33 20.72
2026-08-12 208.87 18 0.32 17.53
2026-08-11 203.89 24.26 0.34 35.06
2026-08-10 207.13 19.43 0.33 20.8
2026-08-07 207.94 20.05 0.33 22.71
2026-08-06 206.28 25.89 0.34 39.44
2026-08-05 206.63 31.4 0.36 54.58
2026-08-04 208.45 31.8 0.36 55.78
2026-08-03 201.82 28.62 0.35 48.4
2026-07-31 202.95 32.24 0.36 56.18
2026-07-30 207.93 40.84 0.39 71.71
2026-07-29 209.23 35.18 0.37 60.96
2026-07-28 205.61 38.67 0.38 68.13
2026-07-27 200.14 60.89 0.45 92.8
2026-07-24 202.19 55.82 0.43 87.65
2026-07-23 200.62 55.11 0.43 85.26
2026-07-22 197.74 45.27 0.4 75.7
2026-07-21 203.16 53.27 0.43 83.67
2026-07-20 199.95 54.68 0.43 85.2
2026-07-17 205.99 55.69 0.43 86.45
2026-07-16 208.92 50.5 0.42 83.27
2026-07-15 197.24 40.21 0.39 72.11
2026-07-14 191.95 45.48 0.4 78.49
2026-07-13 209.03 55.97 0.43 88
2026-07-10 199.15 50.53 0.42 84.06
2026-07-09 198.91 56.68 0.44 88.45
2026-07-08 200.36 58.53 0.44 90.84
2026-07-07 205.7 58.47 0.44 90.44
2026-07-02 216.12 55.74 0.43 89.29