When people talk about "cash in the bank", or "money on the sidelines", the conventional wisdom reverts to an image of inert capital, used by banks to fund loans (as has been the case under fractional reserve banking since time immemorial) sitting in a bank vault or numbered account either physically or electronically, and collecting interest, well, collecting interest in the Old Normal (not the New ZIRPy one, where instead of discussing why it is not collecting interest the progressive intelligentsia would rather debate such trolling idiocies as trillion dollar coins, quadrillion euro Swiss cheeses, and quintillion yen tuna). There is one problem, however, with this conventional wisdom: it is dead wrong. Tracking deposit flow data is so critical, as it provides hints of major inflection points, such as when there is a massive build up of deposits via reserves (either real, from saving clients, or synthetic, via the reserve pathway) which can then be used as investments in the market. And of all major inflection points, perhaps none is more critical than the just released data from today's H.6 statement, which showed that in the trailing 4 week period ended December 31, a record $220 billion was put into savings accounts (obviously a blatant misnomer in a time when there is no interest available on any savings). This is the biggest 4-week total amount injected into US savings accounts ever, greater than in the aftermath of Lehman, greater than during the first debt ceiling crisis, greater than any other time in US history.