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AppFolio APPF 208.48 2.72 1.32%

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

APPF / Comparative study

3 signals / 502 sessions
Window statistics

Signal snapshot

Current value vs. selected history
IV Rank z 0.00
38.47
Mean
38.36
Window
+136.0%
ATM IV z 0.33
0.47
Mean
0.43
Window
+34.8%
IV Percentile z -0.49
41.43
Mean
56.73
Window
-4.2%
Relationship matrix

Correlation

Pearson r
Signal IV Rank ATM IV IV Percent...
IV Rank 1.00 0.96 0.92
ATM IV 0.96 1.00 0.90
IV Percent... 0.92 0.90 1.00
Source observations

Data inspector

1-50 of 502
  • 1 / 11
Date Close IV Rank ATM IV IV Percentile
2026-09-11 208.48 38.47 0.47 41.43
2026-09-10 205.76 43.13 0.49 54.58
2026-09-09 205.65 42.8 0.49 53.78
2026-09-08 206.01 44.09 0.5 57.37
2026-09-07 215 39.36 0.48 46.4
2026-09-04 214.28 37.44 0.47 40.64
2026-09-03 223.57 38.63 0.47 44.22
2026-09-02 224.27 39.85 0.48 48.21
2026-09-01 225.28 40.56 0.48 48.8
2026-08-31 234.21 35.59 0.46 36.55
2026-08-28 234.49 33.54 0.44 30.4
2026-08-27 232.06 41.31 0.48 48.4
2026-08-26 223.18 34.85 0.44 33.6
2026-08-25 223.05 37.41 0.46 38
2026-08-24 225.1 43.02 0.49 51.81
2026-08-21 224.4 39.95 0.47 44.4
2026-08-20 218.85 44.38 0.49 54.4
2026-08-19 215.22 42.42 0.48 50.4
2026-08-18 203.95 45.36 0.5 56.8
2026-08-17 195.97 43.59 0.49 53.82
2026-08-14 204.21 38.42 0.46 43.2
2026-08-13 203.97 47.25 0.51 61.2
2026-08-12 196.77 50.12 0.52 68
2026-08-11 203.02 50.08 0.52 68
2026-08-10 199.54 53.66 0.54 74.3
2026-08-07 198.74 55.89 0.55 76.8
2026-08-06 194.11 51.88 0.53 72.4
2026-08-05 193 58.33 0.56 79.2
2026-08-04 199.53 51.09 0.53 72
2026-08-03 191.69 54.5 0.54 76.31
2026-07-31 180.19 69.58 0.62 89.6
2026-07-30 176.02 56.78 0.56 77.6
2026-07-29 187 55.41 0.55 76.4
2026-07-28 178.27 55.59 0.55 76.4
2026-07-27 168.74 61.73 0.58 83.13
2026-07-24 165.05 50.7 0.52 71.2
2026-07-23 163.95 97.01 0.76 99.6
2026-07-22 162.21 88.75 0.72 99.2
2026-07-21 167.84 90.74 0.73 99.6
2026-07-20 179.09 85.64 0.7 99.2
2026-07-17 179.73 82.84 0.69 98.4
2026-07-16 181.45 79.68 0.67 97.6
2026-07-15 175.4 81.22 0.68 98
2026-07-14 174.46 79.17 0.67 98
2026-07-13 179.9 75.13 0.65 97.19
2026-07-10 175.58 71.68 0.63 95.6
2026-07-09 175.31 73.53 0.64 96.8
2026-07-08 176.48 69.27 0.62 93.6
2026-07-07 179.42 70.51 0.63 95.2
2026-07-02 170.9 58.66 0.57 86.45