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Tandem Diabetes Care TNDM 17.23 -0.3 -1.71%

Previous-day view · Thu Sep 17 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

TNDM / Comparative study

3 signals / 507 sessions
Window statistics

Signal snapshot

Current value vs. selected history
IV Rank z -0.34
22.7
Mean
30.33
Window
+56.9%
ATM IV z 0.55
0.88
Mean
0.78
Window
+44.4%
IV Percentile z 0.17
60.55
Mean
55.47
Window
+204.0%
Relationship matrix

Correlation

Pearson r
Signal IV Rank ATM IV IV Percent...
IV Rank 1.00 0.84 0.87
ATM IV 0.84 1.00 0.88
IV Percent... 0.87 0.88 1.00
Source observations

Data inspector

1-50 of 507
  • 1 / 11
Date Close IV Rank ATM IV IV Percentile
2026-09-17 17.23 22.7 0.88 60.55
2026-09-16 17.53 20.04 0.84 56.25
2026-09-15 16.28 10.99 0.69 20.7
2026-09-14 16.81 17.79 0.8 50.59
2026-09-11 17.11 27.84 0.96 75.39
2026-09-10 18.31 2.22 0.55 0.78
2026-09-09 19.11 10.51 0.68 18.75
2026-09-08 19.88 3.39 0.57 1.17
2026-09-07 19.9 12.55 0.72 27.84
2026-09-04 19.9 9.95 0.67 14.84
2026-09-03 20.43 14.43 0.75 37.89
2026-09-02 20.56 10.78 0.69 18.36
2026-09-01 21.28 6.46 0.62 6.27
2026-08-31 22.01 19.82 0.83 55.91
2026-08-28 21.43 18.61 0.81 54.12
2026-08-27 21.4 12.5 0.72 28.24
2026-08-26 21.37 17.57 0.8 50.98
2026-08-25 21.58 17.4 0.79 50.59
2026-08-24 22.22 10.42 0.68 18.11
2026-08-21 22.32 9.39 0.67 14.51
2026-08-20 22.57 18.33 0.81 54.12
2026-08-19 23.46 14.76 0.75 41.96
2026-08-18 23.73 6.13 0.61 5.88
2026-08-17 22.25 17.86 0.8 52.36
2026-08-14 22.72 13.45 0.73 35.29
2026-08-13 23.13 20.5 0.85 57.65
2026-08-12 23.44 9.34 0.66 13.73
2026-08-11 23.44 19.43 0.83 56.47
2026-08-10 22.81 11.61 0.7 24.8
2026-08-07 22.38 7.43 0.63 9.02
2026-08-06 18.79 32.65 1.04 90.2
2026-08-05 19.59 15.92 0.77 46.27
2026-08-04 20.2 21.15 0.86 58.43
2026-08-03 20.11 39.63 1.16 96.46
2026-07-31 19.5 31.38 1.02 89.41
2026-07-30 19.01 34.69 1.07 91.37
2026-07-29 18.59 43.14 1.21 98.43
2026-07-28 17.76 31.09 1.02 80.78
2026-07-27 17.17 36.66 1.11 92.91
2026-07-24 17.12 29.53 0.99 78.82
2026-07-23 16.9 33.18 1.05 90.2
2026-07-22 16.91 36.33 1.1 92.55
2026-07-21 17.6 35.56 1.09 92.16
2026-07-20 18.1 31.64 1.03 89.37
2026-07-17 17.08 27.27 0.95 76.08
2026-07-16 16.29 26.66 0.94 73.33
2026-07-15 15.28 33.17 1.05 90.59
2026-07-14 15.54 47.27 1.28 99.61
2026-07-13 16.25 29.33 0.99 79.92
2026-07-10 15.41 30.66 1.01 80.39