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Natural Gas Services Group NGS 37.87 1.03 2.8%

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

NGS / Comparative study

3 signals / 509 sessions
Window statistics

Signal snapshot

Current value vs. selected history
IV Rank z 1.12
35.18
Mean
17.61
Window
-8.9%
ATM IV z -0.20
0.49
Mean
0.55
Window
-41.2%
IV Percentile z 0.68
65.89
Mean
46.5
Window
-21.3%
Relationship matrix

Correlation

Pearson r
Signal IV Rank ATM IV IV Percent...
IV Rank 1.00 0.81 0.72
ATM IV 0.81 1.00 0.70
IV Percent... 0.72 0.70 1.00
Source observations

Data inspector

1-50 of 509
  • 1 / 11
Date Close IV Rank ATM IV IV Percentile
2026-09-11 37.87 35.18 0.49 65.89
2026-09-10 36.84 53.42 0.66 96.51
2026-09-09 38.08 38.98 0.53 76.74
2026-09-08 36.93 37.63 0.51 74.81
2026-09-07 36.33 26.87 0.41 33.07
2026-09-04 36.33 24.5 0.39 25.97
2026-09-03 35.67 32.11 0.46 51.94
2026-09-02 35.3 27.99 0.42 37.6
2026-09-01 35.27 29.46 0.44 42.8
2026-08-31 35.2 34.36 0.48 64.06
2026-08-28 34.69 41.57 0.55 82.1
2026-08-27 35.4 19.28 0.34 13.23
2026-08-26 34.74 33.07 0.47 57.59
2026-08-25 34.37 35.3 0.49 67.32
2026-08-24 34.77 45.68 0.59 90.23
2026-08-21 35.49 30.98 0.45 49.42
2026-08-20 35.52 26.16 0.41 32.68
2026-08-19 35.22 46.68 0.6 90.66
2026-08-18 37.59 33.93 0.48 63.42
2026-08-17 38.26 23.85 0.38 25
2026-08-14 37.97 30.12 0.44 46.69
2026-08-13 36.74 26.08 0.41 33.46
2026-08-12 36.72 30.51 0.45 47.86
2026-08-11 36.78 31.45 0.46 52.53
2026-08-10 36.97 30.65 0.45 49.22
2026-08-07 37.01 31.21 0.45 51.36
2026-08-06 36.4 39.59 0.53 77.43
2026-08-05 36.68 32.26 0.46 54.09
2026-08-04 37.23 33 0.47 56.81
2026-08-03 36.37 48.01 0.61 90.63
2026-07-31 36.64 35.28 0.58 87.16
2026-07-30 35.89 40.13 0.64 91.05
2026-07-29 35.53 35.12 0.58 86.38
2026-07-28 35.76 42.87 0.67 93.77
2026-07-27 36.4 41.15 0.65 92.58
2026-07-24 36.47 46.9 0.72 95.33
2026-07-23 38.87 35.73 0.59 88.33
2026-07-22 39.55 27.34 0.49 64.2
2026-07-21 39.46 29.06 0.51 71.6
2026-07-20 38.03 30.44 0.52 75.39
2026-07-17 38.77 26.61 0.48 61.09
2026-07-16 39.61 28.95 0.5 71.21
2026-07-15 41.11 26.6 0.48 60.31
2026-07-14 41.3 24.62 0.45 50.97
2026-07-13 40.57 28.33 0.5 69.53
2026-07-10 40.53 28.25 0.5 67.7
2026-07-09 40.05 24.52 0.45 49.81
2026-07-08 40.71 26.42 0.47 58.75
2026-07-07 38.76 25.86 0.47 56.03
2026-07-02 39.46 34.84 0.58 83.33