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Spero Therapeutics SPRO 1.14 0.01 0.88%

SPRO Historical Options Analysis

Explore SPRO (Spero Therapeutics) historical options data, volatility, Greeks and positioning. Compare signals over time in the free Historical Lab preview.

Previous-day view · Mon Sep 21 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

SPRO / Comparative study

3 signals / 500 sessions
Window statistics

Signal snapshot

Current value vs. selected history
IV Rank z 1.97
70.43
Mean
23.51
Window
+265.9%
ATM IV z 3.10
7.76
Mean
2.25
Window
+242.9%
IV Percentile z 1.43
98.8
Mean
50.97
Window
+90.5%
Relationship matrix

Correlation

Pearson r
Signal IV Rank ATM IV IV Percent...
IV Rank 1.00 0.78 0.81
ATM IV 0.78 1.00 0.73
IV Percent... 0.81 0.73 1.00
Source observations

Data inspector

1-50 of 500
  • 1 / 10
Date Close IV Rank ATM IV IV Percentile
2026-09-21 1.14 70.43 7.76 98.8
2026-09-18 1.13 67.06 7.41 98.8
2026-09-17 1.12 65.85 7.29 98.8
2026-09-16 1.11 65.09 7.21 98.8
2026-09-15 1.13 63.88 7.09 98.8
2026-09-14 1.14 62.04 6.9 98.8
2026-09-11 1.13 59.11 6.6 98.8
2026-09-10 1.12 58.6 6.54 98.8
2026-09-09 1.17 55.83 6.26 98.8
2026-09-08 1.19 52.45 5.91 98.8
2026-09-07 1.21 51.02 5.77 98.8
2026-09-04 1.21 48.98 5.56 98.8
2026-09-03 1.22 48.59 5.52 98.8
2026-09-02 1.22 48.07 5.46 98.8
2026-09-01 1.2 47.48 5.4 98.8
2026-08-31 1.22 44.68 5.11 98.8
2026-08-28 1.2 13.75 1.93 87.2
2026-08-27 1.21 12.78 1.83 86
2026-08-26 1.22 13.18 1.88 86.4
2026-08-25 1.23 14.11 1.97 87.6
2026-08-24 1.22 12.74 1.83 86.75
2026-08-21 1.22 12.09 1.76 85.6
2026-08-20 1.21 11.51 1.7 84.4
2026-08-19 1.23 20.58 2.64 94.4
2026-08-18 1.2 89.98 9.77 99.6
2026-08-17 1.19 18.67 2.44 94.78
2026-08-14 1.23 18.19 2.39 94
2026-08-13 1.24 18.65 2.44 94.8
2026-08-12 1.19 16.56 2.22 93.2
2026-08-11 1.23 17.78 2.35 93.6
2026-08-10 1.23 100 10.8 100
2026-08-07 1.26 100 9.35 100
2026-08-06 1.27 97.48 3.44 99.6
2026-08-05 1.26 96.87 3.42 99.6
2026-08-04 1.23 94.69 3.36 99.6
2026-08-03 1.15 100 3.51 100
2026-07-31 1.17 100 3.12 100
2026-07-30 1.2 96.53 2.88 98.8
2026-07-29 1.19 100 2.97 100
2026-07-28 1.2 99.64 2.9 99.6
2026-07-27 1.18 100 2.9 100
2026-07-24 1.19 95.55 2.7 99.2
2026-07-23 1.16 99.05 2.78 99.6
2026-07-22 1.27 82.49 2.4 99.6
2026-07-21 1.38 72.21 2.17 98.4
2026-07-20 1.44 65.55 2.01 96.39
2026-07-17 1.58 51.1 1.68 92.4
2026-07-16 1.57 50.77 1.68 92.4
2026-07-15 1.7 40.33 1.44 76.4
2026-07-14 1.7 45.45 1.56 90