Are SMidCaps coming back into fashion? They had a good day today. They outperformed the LargeCaps. The S&P 500 LargeCaps was up 0.3%, while the S&P 400 MidCaps and the S&P 600 SmallCaps rose 1.6% and 2.0% (chart). The Russell 2000 SmallCaps rose 2.0% as well.

That led lots of market commentators to declare after the close that the SMidCaps may be finally starting to outperform the LargeCaps. That's something they haven't done consistently since roughly 2018 (chart). And there have been lots of similar calls since then that haven't panned out.