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Align Technology Inc ALGN 147.61 -2.1 -1.4%

Previous-day view · Fri Sep 18 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

ALGN / Comparative study

3 signals / 510 sessions
Window statistics

Signal snapshot

Current value vs. selected history
IV Rank z -0.86
9.4
Mean
30.72
Window
-69.8%
ATM IV z -0.69
0.39
Mean
0.49
Window
-10.0%
IV Percentile z -1.28
16.99
Mean
53.43
Window
-74.7%
Relationship matrix

Correlation

Pearson r
Signal IV Rank ATM IV IV Percent...
IV Rank 1.00 0.80 0.86
ATM IV 0.80 1.00 0.81
IV Percent... 0.86 0.81 1.00
Source observations

Data inspector

1-50 of 510
  • 1 / 11
Date Close IV Rank ATM IV IV Percentile
2026-09-18 147.61 9.4 0.39 16.99
2026-09-17 149.71 8.63 0.38 13.13
2026-09-16 150.45 11.46 0.41 25.87
2026-09-15 147 12.13 0.42 30.89
2026-09-14 153 8.59 0.38 12.79
2026-09-11 150.82 9.19 0.39 15.44
2026-09-10 150.72 8.04 0.37 10.42
2026-09-09 152.92 9.12 0.38 14.29
2026-09-08 153.49 8.48 0.38 11.97
2026-09-07 158.63 10.03 0.39 16.28
2026-09-04 158.63 8.73 0.38 12.74
2026-09-03 159.85 6.5 0.36 5.02
2026-09-02 159.15 7.11 0.36 8.11
2026-09-01 154.96 7.25 0.36 8.14
2026-08-31 159.79 8.91 0.38 12.84
2026-08-28 157.58 4.92 0.34 3.49
2026-08-27 158.84 8.77 0.38 13.18
2026-08-26 159.14 11.3 0.41 24.81
2026-08-25 159.61 8.25 0.37 11.63
2026-08-24 159.64 9.21 0.39 14.79
2026-08-21 162.55 10.37 0.4 17.83
2026-08-20 158.94 10.92 0.4 21.32
2026-08-19 163.04 11.6 0.41 27.13
2026-08-18 167.91 9.67 0.39 17.05
2026-08-17 171.16 7.47 0.37 11.67
2026-08-14 181.31 6.12 0.35 8.14
2026-08-13 176.2 8.28 0.38 13.95
2026-08-12 174.01 9.01 0.38 15.89
2026-08-11 172.96 7.05 0.36 12.79
2026-08-10 176.04 10.97 0.4 21.79
2026-08-07 173.66 9.15 0.38 16.67
2026-08-06 169.08 11.94 0.41 28.68
2026-08-05 174.83 10.27 0.4 19.38
2026-08-04 173.27 12.24 0.42 32.95
2026-08-03 172.89 11.25 0.41 24.9
2026-07-31 169.16 10.79 0.4 20.93
2026-07-30 173.41 14.01 0.44 46.51
2026-07-29 180.08 33.91 0.65 86.43
2026-07-28 175.6 32.02 0.63 82.17
2026-07-27 168.05 32.35 0.64 83.66
2026-07-24 167.01 27.81 0.59 76.36
2026-07-23 168.24 27.28 0.58 74.42
2026-07-22 172.46 26.82 0.58 72.87
2026-07-21 177.5 26.79 0.58 72.87
2026-07-20 175.05 25.79 0.56 71.21
2026-07-17 176.76 25.54 0.56 70.16
2026-07-16 178.41 24.71 0.55 69.38
2026-07-15 181.26 23.89 0.54 67.83
2026-07-14 178.46 23.6 0.54 67.05
2026-07-13 180.59 24.6 0.55 68.48