Currency in Circulation

Think of it this way

It is a slow leak in a water tank. From one day to the next you notice nothing; after a year several centimeters are missing and nobody remembers why anymore.

What is Currency in Circulation?

It is the total value of the physical dollar banknotes circulating around the world. Although it may seem a minor figure, it is part of the accounting identity for reserves, and almost nobody looks at it.

How to read Currency in Circulation

A line that almost always rises slowly, with marked seasonality: it rises in December because of holiday shopping and falls in January. It grows by roughly 100 billion dollars a year. Lag: none, or +15 days at most: the cash is already in the accounts.

What Currency in Circulation means for the market

It is a silent, constant drain. When you withdraw 200 dollars from an ATM, your bank loses those same 200 in reserves at the Fed. Multiplied across the whole economy, it is a permanent trickle that reduces reserves without anyone announcing it. It does not move the market day to day, but it explains why reserves fall even when the Fed does nothing.

Where the money flows

From banks to wallets and safes. When you withdraw 200 dollars from an ATM, your bank hands over banknotes and its reserve account at the Fed falls by those 200. The money still exists, but it has left the circuit banks use to pay each other, and while it sits in a wallet it funds no loans.

What to watch in Currency in Circulation

Use it as an explanation, not as a signal. The specific case: you see reserves fall one week with no QT and no TGA moves, and you cannot find the cause. Overlay this series, and if it rises, there it is. It moves slowly, so over short stretches it is almost never the answer; over one-year stretches, it explains quite a lot.

Every banknote that leaves an ATM destroys a bank reserve.