There's a weblog post about this by the Fed itself: > […] the modification of Regulation D in late April has effectively rendered savings accounts almost indi

There's a weblog post about this by the Fed itself: > […] the modification of Regulation D in late April has effectively rendered savings accounts almost indistinguishable from checking accounts from the perspective of depositors and banks. Accordingly, the composition of M2 between M1 and non-M1 components conveys little economic information. * https://fredblog.stlouisfed.org/2021/01/whats-behind-the-recent-surge-in-the-m1-money-supply/ https://fredblog.stlouisfed.org/2021/01/whats-behind-the-rec...