spread difference qqq and iwm this year

This year, QQQ has returned 16.2% and IWM has returned 15.1%.

DATE
May 14 2026
$284.45
$719.79
May 13 2026
$282.67
$714.71
May 12 2026
$282.57
$707.24
May 11 2026
$285.33
$713.29
May 08 2026
$284.17
$711.23
May 07 2026
$282.26
$694.94
May 06 2026
$286.80
$695.77
May 05 2026
$282.56
$681.61
May 04 2026
$277.88
$672.88
May 01 2026
$279.28
$674.15
April 30 2026
$277.97
$667.74
April 29 2026
$272.08
$661.57
April 28 2026
$273.91
$657.55
April 27 2026
$277.14
$664.23
April 24 2026
$276.65
$663.88
April 23 2026
$275.52
$651.42
April 22 2026
$276.48
$655.11
April 21 2026
$274.51
$644.33
April 20 2026
$277.35
$646.79
April 17 2026
$275.78
$648.85
April 16 2026
$269.95
$640.47
April 15 2026
$269.39
$637.40
April 14 2026
$268.72
$628.60
April 13 2026
$265.07
$617.39
April 10 2026
$261.30
$611.07