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Napco Security Technologies NSSC 36.26 0.75 2.11%

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

NSSC / Comparative study

3 signals / 508 sessions
Window statistics

Signal snapshot

Current value vs. selected history
IV Rank z -0.70
14.23
Mean
27.42
Window
-71.1%
ATM IV z -0.85
0.38
Mean
0.48
Window
-31.6%
IV Percentile z -0.68
28.79
Mean
48.73
Window
-62.4%
Relationship matrix

Correlation

Pearson r
Signal IV Rank ATM IV IV Percent...
IV Rank 1.00 0.94 0.91
ATM IV 0.94 1.00 0.91
IV Percent... 0.91 0.91 1.00
Source observations

Data inspector

1-50 of 508
  • 1 / 11
Date Close IV Rank ATM IV IV Percentile
2026-09-11 36.26 14.23 0.38 28.79
2026-09-10 35.51 26.96 0.47 59.53
2026-09-09 35.91 37.22 0.54 75.49
2026-09-08 37.09 13.61 0.37 27.63
2026-09-07 37.01 17.87 0.4 39.45
2026-09-04 37.01 15.77 0.39 34.24
2026-09-03 37.05 9.65 0.34 20.62
2026-09-02 35.65 23.21 0.44 48.25
2026-09-01 35.24 20.33 0.42 43.75
2026-08-31 36.24 20.29 0.42 43.14
2026-08-28 35.35 29.9 0.49 65.63
2026-08-27 35.28 18.06 0.41 41.41
2026-08-26 35.73 2.35 0.29 0.39
2026-08-25 36.43 12.19 0.36 27.34
2026-08-24 37.59 21.97 0.43 45.1
2026-08-21 38.09 40.01 0.56 80.08
2026-08-20 37.77 40.54 0.57 80.86
2026-08-19 37.8 37.64 0.55 75.78
2026-08-18 37.81 41.21 0.57 82.03
2026-08-17 38.06 56.59 0.68 98.82
2026-08-14 38.32 30.58 0.5 65.63
2026-08-13 38.26 42.43 0.58 84.77
2026-08-12 38.87 33.11 0.51 70.31
2026-08-11 39.61 31.11 0.5 67.19
2026-08-10 40.01 45.31 0.6 90.2
2026-08-07 41.36 41.8 0.58 84.38
2026-08-06 40.92 32.96 0.51 69.53
2026-08-05 40.34 26.37 0.47 59.38
2026-08-04 40.22 34.49 0.52 72.66
2026-08-03 38.09 32.42 0.51 69.41
2026-07-31 37.08 45.14 0.6 90.23
2026-07-30 36.37 11.73 0.36 26.17
2026-07-29 36.37 3.71 0.3 1.56
2026-07-28 37.25 22.06 0.43 44.92
2026-07-27 36.4 26.27 0.46 59.22
2026-07-24 35.74 33.78 0.52 72.27
2026-07-23 35.66 23.53 0.45 49.22
2026-07-22 35.57 42.65 0.58 86.33
2026-07-21 36.18 22.62 0.44 46.48
2026-07-20 36.05 25.82 0.46 57.25
2026-07-17 36.12 23.78 0.45 50.39
2026-07-16 36.67 26.25 0.46 59.38
2026-07-15 35.56 34.69 0.53 73.83
2026-07-14 35.9 25.38 0.46 56.25
2026-07-13 35.74 26.13 0.46 58.82
2026-07-10 36.07 27.62 0.47 62.11
2026-07-09 36.09 30.77 0.5 68.36
2026-07-08 38.08 19.02 0.41 45.7
2026-07-07 38.4 24.76 0.45 53.91
2026-07-02 37.79 15.96 0.39 39.69