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Arch Capital Group Ltd ACGL 96.09 -0.11 -0.11%

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

ACGL / Comparative study

3 signals / 503 sessions
Window statistics

Signal snapshot

Current value vs. selected history
IV Rank z 0.48
46.72
Mean
38.2
Window
+43.6%
ATM IV z -0.29
0.24
Mean
0.25
Window
+3.1%
IV Percentile z -0.25
44.84
Mean
52
Window
-11.0%
Relationship matrix

Correlation

Pearson r
Signal IV Rank ATM IV IV Percent...
IV Rank 1.00 0.84 0.86
ATM IV 0.84 1.00 0.91
IV Percent... 0.86 0.91 1.00
Source observations

Data inspector

1-50 of 503
  • 1 / 11
Date Close IV Rank ATM IV IV Percentile
2026-09-11 96.09 46.72 0.24 44.84
2026-09-10 96.2 45.9 0.24 42.86
2026-09-09 96.11 38.87 0.22 28.17
2026-09-08 95.71 32.68 0.21 17.06
2026-09-07 98.1 37.22 0.22 23.11
2026-09-04 98.1 33.63 0.21 18.25
2026-09-03 99.83 25.17 0.19 8.73
2026-09-02 98.21 33.45 0.21 17.46
2026-09-01 98.61 25.9 0.19 9.96
2026-08-31 98.07 48.23 0.24 50
2026-08-28 98.84 24.26 0.19 8.37
2026-08-27 98.76 31.11 0.2 15.54
2026-08-26 100.72 17.01 0.17 1.59
2026-08-25 100.56 57.89 0.26 74.5
2026-08-24 101.14 28.4 0.2 11.6
2026-08-21 99.39 23.56 0.19 7.17
2026-08-20 99.31 28.12 0.2 10.76
2026-08-19 98.53 37.71 0.22 20.72
2026-08-18 98.91 6.45 0.15 0.4
2026-08-17 97.81 26.32 0.19 8.8
2026-08-14 98.71 17.47 0.17 1.59
2026-08-13 98.03 35.58 0.21 15.54
2026-08-12 97.29 30.45 0.2 10.76
2026-08-11 98.26 34.53 0.21 13.94
2026-08-10 98.25 39.87 0.22 24.8
2026-08-07 98.48 47.67 0.24 47.01
2026-08-06 99.29 51.17 0.25 57.77
2026-08-05 99.09 52.78 0.25 60.96
2026-08-04 99.52 58.86 0.26 74.9
2026-08-03 101.12 55.08 0.26 66.4
2026-07-31 100.53 48.32 0.24 49.8
2026-07-30 101.14 57.73 0.26 72.51
2026-07-29 104.55 52.4 0.25 60.16
2026-07-28 106.48 63.23 0.27 79.28
2026-07-27 103.88 59.61 0.27 75.2
2026-07-24 103.36 46.4 0.24 42.23
2026-07-23 100.1 70.05 0.29 85.26
2026-07-22 98.63 55.84 0.26 66.53
2026-07-21 100.55 51.78 0.25 59.36
2026-07-20 101.83 59.55 0.27 74
2026-07-17 101.35 51.74 0.25 58.57
2026-07-16 100.04 44.39 0.23 35.86
2026-07-15 98.54 54.49 0.26 62.55
2026-07-14 101.53 41.96 0.23 29.88
2026-07-13 103.06 55.97 0.26 65.6
2026-07-10 101.06 33.37 0.21 12.75
2026-07-09 101.7 48.17 0.24 47.41
2026-07-08 102.01 53.17 0.25 58.96
2026-07-07 102.85 52.45 0.25 57.37
2026-07-02 102.2 46.73 0.24 42.06