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Spire Inc SR 88.81 -0.43 -0.48%

Previous-day view · Fri Nov 6 close. You are previewing the previous trading day. Subscribe to see today live and every other date — Trader is $59/mo. Sign up Sign in
Group
Window
Scale
Plotted 3/8
Metric library

Volatility

Interactive timeline

SR / Comparative study

3 signals / 491 sessions
Window statistics

Signal snapshot

Current value vs. selected history
IV Rank z 0.18
23.78
Mean
20.94
Window
-36.6%
ATM IV z -0.49
0.27
Mean
0.36
Window
-52.7%
IV Percentile z 0.54
61.94
Mean
46.44
Window
-23.9%
Relationship matrix

Correlation

Pearson r
Signal IV Rank ATM IV IV Percent...
IV Rank 1.00 0.94 0.88
ATM IV 0.94 1.00 0.81
IV Percent... 0.88 0.81 1.00
Source observations

Data inspector

1-50 of 491
  • 1 / 10
Date Close IV Rank ATM IV IV Percentile
2026-11-06 88.81 23.78 0.27 61.94
2026-11-05 89.24 24.71 0.27 65.99
2026-11-04 90.31 18.42 0.22 37.89
2026-11-03 88.01 18.07 0.22 36.72
2026-11-02 88.87 15.55 0.2 23.92
2026-10-30 88 24.17 0.27 63.14
2026-10-29 86.72 26.79 0.29 71.65
2026-10-28 85.5 24.84 0.27 65.61
2026-10-27 86.05 27.36 0.29 71.94
2026-10-26 85.74 26.14 0.28 69.44
2026-10-23 85.24 25.83 0.28 68.65
2026-10-22 85.56 30.59 0.32 81.35
2026-10-21 82.51 17.71 0.22 33.73
2026-10-20 82.89 34.77 0.35 86.11
2026-10-19 81.17 17.82 0.22 34.26
2026-10-15 80.75 13.07 0.18 12.7
2026-10-14 79.8 17.65 0.22 32.54
2026-10-13 80.05 16.54 0.21 28.57
2026-10-12 79.56 18.04 0.22 34.66
2026-10-09 78.42 20.72 0.24 48.02
2026-10-08 77.99 21.88 0.25 52.38
2026-10-07 77.82 22.12 0.25 53.97
2026-10-06 78.17 20.59 0.24 47.22
2026-10-05 77.41 22.7 0.26 56.18
2026-10-02 77.54 21.55 0.25 51.98
2026-10-01 76.44 52.72 0.49 94.84
2026-09-30 76.09 52.45 0.49 94.84
2026-09-29 76.77 46.98 0.45 93.25
2026-09-28 76.84 45.04 0.43 92.03
2026-09-25 77.21 14.2 0.19 20.24
2026-09-24 76.79 40.12 0.39 87.65
2026-09-23 77.39 37.16 0.37 85.66
2026-09-22 78.5 30.46 0.32 79.28
2026-09-21 79.76 11.68 0.17 7.2
2026-09-18 79.23 24.34 0.27 62.15
2026-09-17 80.34 19.7 0.23 45.02
2026-09-16 79.9 20.9 0.24 49.8
2026-09-15 80.22 18.75 0.22 39.44
2026-09-14 81.36 12.09 0.17 8.4
2026-09-11 80.2 47.18 0.45 91.63
2026-09-10 81.47 40.27 0.39 84.46
2026-09-09 81.62 39.96 0.39 84.06
2026-09-08 83.44 26.23 0.28 64.94
2026-09-04 82.68 30.47 0.32 77.29
2026-09-03 83.33 9.37 0.15 2.39
2026-09-02 82.77 29.13 0.31 72.51
2026-09-01 82.78 28.65 0.3 71.2
2026-08-31 81.84 22.16 0.25 53.82
2026-08-28 82.56 21.3 0.24 50.4
2026-08-27 82.54 20.07 0.24 46.8