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NB Bancorp NBBK 22.84 -0.05 -0.22%

Previous-day view · Tue Sep 15 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

NBBK / Comparative study

3 signals / 501 sessions
Window statistics

Signal snapshot

Current value vs. selected history
IV Rank z -0.46
8.15
Mean
16.7
Window
-80.8%
ATM IV z -0.19
0.41
Mean
0.47
Window
-49.0%
IV Percentile z 0.21
57.77
Mean
52.12
Window
-33.7%
Relationship matrix

Correlation

Pearson r
Signal IV Rank ATM IV IV Percent...
IV Rank 1.00 0.88 0.65
ATM IV 0.88 1.00 0.79
IV Percent... 0.65 0.79 1.00
Source observations

Data inspector

1-50 of 501
  • 1 / 11
Date Close IV Rank ATM IV IV Percentile
2026-09-15 22.84 8.15 0.41 57.77
2026-09-14 22.89 15.25 0.65 86.4
2026-09-11 22.79 18.01 0.74 94.02
2026-09-10 22.86 17.75 0.73 94.02
2026-09-09 22.88 16.59 0.7 90.04
2026-09-08 23 5.27 0.32 32.27
2026-09-07 23.16 19.61 0.8 95.6
2026-09-04 23.16 17 0.71 92.83
2026-09-03 22.97 9.58 0.46 66.14
2026-09-02 22.6 8.26 0.42 58.96
2026-09-01 22.04 8.61 0.43 62
2026-08-31 22.33 3.18 0.25 6.43
2026-08-28 22.46 3.19 0.25 6.4
2026-08-27 22.36 3.29 0.25 8
2026-08-26 22.3 3.48 0.26 10
2026-08-25 22.43 13.01 0.58 82.4
2026-08-24 22.51 0 0.14 0
2026-08-21 21.98 1.92 0.28 17.6
2026-08-20 21.98 0.57 0.24 3.2
2026-08-19 21.9 15.71 0.73 94
2026-08-18 22.74 10.59 0.56 82
2026-08-17 22.91 14.85 0.7 92.37
2026-08-14 22.98 10.27 0.55 80.8
2026-08-13 22.89 11.46 0.59 85.2
2026-08-12 22.85 9.47 0.53 78.4
2026-08-11 22.75 8.99 0.51 76.4
2026-08-10 22.58 7.75 0.47 69.48
2026-08-07 22.58 12.93 0.64 88.8
2026-08-06 22.75 9.31 0.52 78
2026-08-05 23.08 10.97 0.58 83.6
2026-08-04 23.32 13.38 0.65 88.8
2026-08-03 23.12 10.2 0.55 81.93
2026-07-31 23.01 11.61 0.59 85.2
2026-07-30 22.74 6.86 0.43 66.8
2026-07-29 22.66 4.1 0.34 47.6
2026-07-28 23.05 1.07 0.24 7.6
2026-07-27 22.43 0.74 0.23 4.42
2026-07-24 22.43 9 0.5 77.2
2026-07-23 22.29 0.99 0.24 6.8
2026-07-22 21.09 6.2 0.41 63.6
2026-07-21 21.04 6.8 0.43 66.8
2026-07-20 20.98 5.53 0.39 59.84
2026-07-17 21.28 7.84 0.46 70.8
2026-07-16 21.64 3.69 0.33 42.8
2026-07-15 21.15 5.54 0.39 59.6
2026-07-14 20.88 5.22 0.38 57.6
2026-07-13 21.02 5.5 0.39 58.63
2026-07-10 21.02 6.07 0.39 60.4
2026-07-09 21.01 5.26 0.36 54
2026-07-08 20.4 7.37 0.43 67.2