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HealthStream Inc HSTM 28.89 -0.71 -2.4%

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

HSTM / Comparative study

3 signals / 490 sessions
Window statistics

Signal snapshot

Current value vs. selected history
IV Rank z -0.44
7.47
Mean
13.73
Window
-17.0%
ATM IV z -0.59
0.44
Mean
0.88
Window
-14.5%
IV Percentile z -0.21
42.68
Mean
48.81
Window
-17.3%
Relationship matrix

Correlation

Pearson r
Signal IV Rank ATM IV IV Percent...
IV Rank 1.00 0.98 0.77
ATM IV 0.98 1.00 0.76
IV Percent... 0.77 0.76 1.00
Source observations

Data inspector

1-50 of 490
  • 1 / 10
Date Close IV Rank ATM IV IV Percentile
2026-11-06 28.89 7.47 0.44 42.68
2026-11-05 29.6 11.74 0.64 68.7
2026-11-04 32.48 7.68 0.45 46.67
2026-11-03 31.67 8.89 0.51 59.22
2026-11-02 34.58 7.13 0.43 38.19
2026-10-30 33.7 12.59 0.67 72.83
2026-10-29 33.8 7.28 0.44 41.5
2026-10-28 33.73 6.61 0.41 30.95
2026-10-27 34.18 7.01 0.42 37.7
2026-10-26 34.86 10.45 0.58 64.14
2026-10-23 35.16 8.33 0.48 55.16
2026-10-22 34.59 3.33 0.26 5.16
2026-10-21 33.51 11.91 0.64 69.44
2026-10-20 33.77 6.47 0.4 30.16
2026-10-19 33.31 5.41 0.35 19.92
2026-10-15 33.75 6.5 0.4 29.76
2026-10-14 33.65 7.64 0.45 44.44
2026-10-13 33.75 5.49 0.36 20.63
2026-10-12 33.46 13.36 0.71 76.1
2026-10-09 33.13 10.79 0.59 63.89
2026-10-08 32.47 12.3 0.66 69.05
2026-10-07 32.1 12.49 0.67 69.84
2026-10-06 31.31 13.65 0.72 75
2026-10-05 31.54 12.42 0.67 69.72
2026-10-02 30.82 6.79 0.41 32.14
2026-10-01 30.36 5.31 0.35 18.65
2026-09-30 29.71 5.81 0.37 22.22
2026-09-29 29.74 7.44 0.44 39.68
2026-09-28 29.14 4.9 0.33 15.94
2026-09-25 29.1 4.87 0.33 15.08
2026-09-24 28.87 4.79 0.32 13.55
2026-09-23 28.76 4.38 0.31 10.76
2026-09-22 29.01 1.32 0.17 1.59
2026-09-21 29.08 3.67 0.27 5.6
2026-09-18 29.23 11.63 0.63 63.75
2026-09-17 29.19 0.89 0.16 1.2
2026-09-16 29.42 9.95 0.63 62.95
2026-09-15 29.65 2.69 0.25 3.19
2026-09-14 29.63 12.78 0.78 73.2
2026-09-11 29.11 16.84 0.99 82.07
2026-09-10 28.88 15.11 0.9 79.28
2026-09-09 28.67 13.64 0.82 76.49
2026-09-08 28.72 13.03 0.79 74.9
2026-09-04 29.2 3.75 0.31 8.76
2026-09-03 29.74 3.61 0.3 7.57
2026-09-02 29.77 3.6 0.3 7.17
2026-09-01 29.67 4.47 0.34 13.2
2026-08-31 29.05 7.39 0.5 49
2026-08-28 29.38 12.99 0.79 72.4
2026-08-27 28.83 5.52 0.4 23.2