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State Street SPDR S&P 400 MDYG 105.8 0.86 0.82%

MDYG Historical Options Analysis

Explore MDYG (State Street SPDR S&P 400) 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

MDYG / Comparative study

3 signals / 500 sessions
Window statistics

Signal snapshot

Current value vs. selected history
IV Rank z -0.52
4.53
Mean
11.63
Window
-25.7%
ATM IV z -0.62
0.17
Mean
0.37
Window
-39.5%
IV Percentile z -0.96
16.87
Mean
46.38
Window
-28.5%
Relationship matrix

Correlation

Pearson r
Signal IV Rank ATM IV IV Percent...
IV Rank 1.00 0.98 0.71
ATM IV 0.98 1.00 0.72
IV Percent... 0.71 0.72 1.00
Source observations

Data inspector

1-50 of 500
  • 1 / 10
Date Close IV Rank ATM IV IV Percentile
2026-09-21 105.8 4.53 0.17 16.87
2026-09-18 104.94 3.91 0.16 12.8
2026-09-17 105.01 95.83 2.29 99.6
2026-09-16 104.26 73.04 1.76 99.6
2026-09-15 104.45 59.23 1.44 99.2
2026-09-14 105.06 49.17 1.21 98.39
2026-09-11 106.42 33.25 0.84 97.6
2026-09-10 105.5 33.16 0.84 97.6
2026-09-09 106.73 28.35 0.72 96.8
2026-09-08 107.84 24.41 0.63 94.8
2026-09-07 108.32 22.17 0.58 94.78
2026-09-04 108.32 19.32 0.51 92.4
2026-09-03 108.17 18.82 0.5 92
2026-09-02 107.09 19.94 0.53 92.8
2026-09-01 106.63 20.01 0.53 93.17
2026-08-31 107.95 17.26 0.47 91.94
2026-08-28 108.46 14.99 0.41 89.96
2026-08-27 110.36 11.38 0.33 83.53
2026-08-26 110.08 11.61 0.33 83.53
2026-08-25 109.24 12.74 0.36 85.54
2026-08-24 109.13 12.57 0.36 85.48
2026-08-21 110.2 10.02 0.3 80.72
2026-08-20 109.72 10.54 0.31 81.12
2026-08-19 110.9 8.49 0.26 74.7
2026-08-18 111.39 7.56 0.24 67.47
2026-08-17 113.69 3.65 0.15 10.89
2026-08-14 113.58 2.02 0.11 4.82
2026-08-13 113.16 5.39 0.19 36.14
2026-08-12 112.78 6.05 0.21 45.38
2026-08-11 111.99 7.6 0.24 66.67
2026-08-10 111.7 7.82 0.25 67.74
2026-08-07 112.06 5.78 0.2 40.56
2026-08-06 109.89 9.65 0.29 77.51
2026-08-05 109.89 9.7 0.29 77.91
2026-08-04 110.65 -- -- --
2026-08-03 108.2 2.78 0.13 6.43
2026-07-31 106.8 5.81 0.2 40
2026-07-30 106.89 3.13 0.14 8.8
2026-07-29 105.32 8.36 0.26 72.4
2026-07-28 107.66 6.67 0.22 54.4
2026-07-27 108.41 5.97 0.2 41.77
2026-07-24 107.97 8.26 0.26 70.8
2026-07-23 108 6.59 0.22 52.4
2026-07-22 107.97 5.76 0.2 40
2026-07-21 108.33 4.09 0.16 12.4
2026-07-20 106.72 8.17 0.25 69.48
2026-07-17 107.34 4.58 0.19 32.8
2026-07-16 107.92 14.33 0.44 87.6
2026-07-15 108.35 8.6 0.29 75.2
2026-07-14 108.42 19.2 0.57 92.4