Money Funds

Interesting.

Retail money funds (WRMFSL) plus institutional money funds (WIMFSL).

From CNBC:

But for contrarians, retail investors' return to stocks raises a red flag that the markets-which have recouped their losses since the banking crisis-could be close to the end of their rally. This view stems from the unfortunate trend of retail investors who are notorious for "buying high and selling low."
 

Oh, I see. And the institutional investors?