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Webull Corporation Class A Ordinary BULL 8.28 0.57 7.39%

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

BULL / Comparative study

3 signals / 345 sessions
Window statistics

Signal snapshot

Current value vs. selected history
IV Rank z -0.86
10.74
Mean
27.61
Window
-85.8%
ATM IV z -1.30
0.58
Mean
0.83
Window
-49.9%
IV Percentile z -1.14
1.16
Mean
30.56
Window
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Relationship matrix

Correlation

Pearson r
Signal IV Rank ATM IV IV Percent...
IV Rank 1.00 0.88 0.92
ATM IV 0.88 1.00 0.87
IV Percent... 0.92 0.87 1.00
Source observations

Data inspector

1-50 of 345
  • 1 / 7
Date Close IV Rank ATM IV IV Percentile
2026-09-18 8.28 10.74 0.58 1.16
2026-09-17 7.71 15.36 0.65 18.6
2026-09-16 7.69 8.46 0.54 0.39
2026-09-15 8.66 14.04 0.63 10.47
2026-09-14 9.04 11.78 0.59 1.95
2026-09-11 9.22 10.41 0.57 0.39
2026-09-10 9.3 13.18 0.62 4.65
2026-09-09 9.42 13.47 0.62 5.81
2026-09-08 9.57 13.34 0.62 5.04
2026-09-07 9.7 13.88 0.63 7.78
2026-09-04 9.74 11.57 0.59 1.16
2026-09-03 10 12.23 0.6 1.94
2026-09-02 9 14.3 0.64 7.75
2026-09-01 9.13 13 0.61 3.11
2026-08-31 9.48 13.24 0.62 3.52
2026-08-28 9.37 11.52 0.59 0.78
2026-08-27 9.57 12.94 0.61 1.95
2026-08-26 8.78 14.65 0.64 8.17
2026-08-25 8.94 13.55 0.62 3.11
2026-08-24 8.53 11.21 0.59 0.39
2026-08-21 8.78 14.46 0.64 6.23
2026-08-20 8.85 13.66 0.63 3.11
2026-08-19 8.64 23.04 0.78 57.59
2026-08-18 7.93 16.13 0.67 18.68
2026-08-17 8.16 14.95 0.65 9.38
2026-08-14 8.04 16.04 0.67 17.12
2026-08-13 7.95 16.11 0.67 17.51
2026-08-12 7.67 16.6 0.67 19.46
2026-08-11 7.57 17.96 0.7 29.96
2026-08-10 7.26 16.16 0.67 17.97
2026-08-07 7.32 16.96 0.68 20.23
2026-08-06 7.22 18.76 0.71 32.3
2026-08-05 7.38 19.45 0.72 35.8
2026-08-04 7.58 19.08 0.72 33.46
2026-08-03 7.26 20.54 0.74 42.19
2026-07-31 7.06 20.51 0.74 41.63
2026-07-30 7.15 20.31 0.74 40.47
2026-07-29 7.01 21.9 0.76 47.86
2026-07-28 7.27 18.2 0.7 29.57
2026-07-27 7.54 19.92 0.73 37.11
2026-07-24 7.49 20.37 0.74 40.08
2026-07-23 7.84 18.42 0.7 29.96
2026-07-22 8.1 21.18 0.75 43.58
2026-07-21 8.15 20.28 0.73 38.91
2026-07-20 7.69 18.45 0.7 30.08
2026-07-17 7.23 17.31 0.69 21.79
2026-07-16 7.52 17.53 0.69 25.29
2026-07-15 7.69 13.83 0.63 3.89
2026-07-14 7.53 16.37 0.67 18.29
2026-07-13 7.28 19 0.71 30.08