That ranks X4 above X3, but still under X5 in size classification. (ussuvs.com)
We started by looking at how the MATs had changed in size between 2015 - 16 and 2016 - 17, broken down by the MATs» size classification specified by Sir David Carter, the National Schools Commissioner: (thenferblog.org)
S&P Dow Jones Indices has over 10 years of live index history for the S&P Pure Style Indices (launched on Dec. 16, 2005) that can be shared with advisors in the S&P 500, S&P MidCap 400 ®, and S&P SmallCap 600 ® size classifications. (indexologyblog.com)