I've been researching how to fine tune my Factor based investing. One of the questions I've had is whether or not the "XYZ" Growth Fund that I buy is actually giving me exposure to Growth stocks. I came across a group of guys that analyze mutual funds and ETFs based off of the underlying factors they draw exposure from. Then they take those factor exposures and compare them to the different styles (gowth, value, momentum, etc.) - to see if the fund is actually tracking the factor it is claiming to track.

Just wanted to get some other thoughts on this idea - and if you think this is something I should look into more?