Stem STEM 4.46 -0.15 -3.36%
STEM Historical Options Analysis
Explore STEM (Stem) historical options data, volatility, Greeks and positioning. Compare signals over time in the free Historical Lab preview.
Window
Scale
Plotted 3/8
Metric library
Volatility
Interactive timeline
STEM / Comparative study
3 signals / 501 sessions
Window statistics
Signal snapshot
Current value vs. selected history
IV Rank
z 1.58
58.4
Mean
19.51
Window
-41.6%
ATM IV
z -0.39
1.42
Mean
2.12
Window
-74.6%
IV Percentile
z 1.30
85.66
Mean
42.37
Window
-14.3%
Relationship matrix
Correlation
Pearson r
| Signal | IV Rank | ATM IV | IV Percent... |
|---|---|---|---|
| IV Rank | 1.00 | 0.80 | 0.78 |
| ATM IV | 0.80 | 1.00 | 0.67 |
| IV Percent... | 0.78 | 0.67 | 1.00 |
Source observations
Data inspector
1-50 of 501
- 1 / 11
| Date | Close | IV Rank | ATM IV | IV Percentile |
|---|---|---|---|---|
| 2026-09-21 | 4.46 | 58.4 | 1.42 | 85.66 |
| 2026-09-18 | 4.61 | 49.1 | 1.33 | 72.22 |
| 2026-09-17 | 4.72 | 42.89 | 1.28 | 59.52 |
| 2026-09-16 | 4.47 | 50.58 | 1.35 | 75.79 |
| 2026-09-15 | 4.63 | 61.84 | 1.46 | 91.27 |
| 2026-09-14 | 4.75 | 51.13 | 1.35 | 76.89 |
| 2026-09-11 | 4.72 | 40.23 | 1.25 | 51.98 |
| 2026-09-10 | 5.12 | 40.55 | 1.25 | 53.57 |
| 2026-09-09 | 5.37 | 43.33 | 1.28 | 61.51 |
| 2026-09-08 | 5.64 | 47.3 | 1.32 | 68.65 |
| 2026-09-07 | 5.46 | 55.63 | 1.4 | 82.87 |
| 2026-09-04 | 5.57 | 51.94 | 1.36 | 78.97 |
| 2026-09-03 | 5.51 | 73.89 | 1.57 | 97.22 |
| 2026-09-02 | 5.46 | 55.69 | 1.4 | 84.13 |
| 2026-09-01 | 5.49 | 50.37 | 1.35 | 77.29 |
| 2026-08-31 | 5.72 | 43.55 | 1.28 | 64.4 |
| 2026-08-28 | 5.44 | 4.74 | 0.91 | 0.4 |
| 2026-08-27 | 5.7 | 8.95 | 0.95 | 0.4 |
| 2026-08-26 | 5.66 | 17.76 | 1.04 | 3.59 |
| 2026-08-25 | 5.61 | 15.97 | 1.02 | 2.39 |
| 2026-08-24 | 5.46 | 18.71 | 1.05 | 3.2 |
| 2026-08-21 | 5.7 | 20.46 | 1.06 | 5.18 |
| 2026-08-20 | 5.65 | 13.29 | 0.99 | 1.2 |
| 2026-08-19 | 5.76 | 19.25 | 1.05 | 3.19 |
| 2026-08-18 | 5.84 | 20.2 | 1.06 | 3.59 |
| 2026-08-17 | 6.1 | 13.34 | 0.99 | 1.2 |
| 2026-08-14 | 6.34 | 25.85 | 1.11 | 11.95 |
| 2026-08-13 | 6.24 | 0 | 0.87 | 0 |
| 2026-08-12 | 5.45 | 18.36 | 1.14 | 17.93 |
| 2026-08-11 | 5.89 | 47.66 | 1.38 | 82.87 |
| 2026-08-10 | 5.68 | 16.19 | 1.12 | 12.8 |
| 2026-08-07 | 5.88 | 39.44 | 1.32 | 70.12 |
| 2026-08-06 | 5.75 | 24.32 | 1.19 | 32.67 |
| 2026-08-05 | 5.8 | 24.98 | 1.2 | 33.86 |
| 2026-08-04 | 5.98 | 56.77 | 1.46 | 92.43 |
| 2026-08-03 | 5.62 | 73.47 | 1.6 | 98 |
| 2026-07-31 | 5.4 | 53.76 | 1.43 | 87.65 |
| 2026-07-30 | 5.3 | 54.75 | 1.44 | 88.45 |
| 2026-07-29 | 4.95 | 100 | 1.82 | 100 |
| 2026-07-28 | 5.33 | 71.57 | 1.51 | 94.42 |
| 2026-07-27 | 5.58 | 62.61 | 1.45 | 89.2 |
| 2026-07-24 | 5.49 | 52.36 | 1.37 | 80.48 |
| 2026-07-23 | 5.81 | 50.94 | 1.36 | 78.88 |
| 2026-07-22 | 6.01 | 61.29 | 1.44 | 87.25 |
| 2026-07-21 | 6.29 | 46.84 | 1.33 | 74.1 |
| 2026-07-20 | 6.09 | 35.46 | 1.25 | 49.2 |
| 2026-07-17 | 6.26 | 45.03 | 1.32 | 69.72 |
| 2026-07-16 | 6.32 | 42.03 | 1.3 | 65.34 |
| 2026-07-15 | 6.63 | 75.09 | 1.54 | 94.82 |
| 2026-07-14 | 6.61 | 68.13 | 1.49 | 90.84 |