After being left reeling by the unexpected money-market crisis during its first round of quantitative tightening (QT1), the US Federal Reserve (Fed) intends to manage the second (QT2) with the utmost caution. This means reducing its securities portfolio without creating a shortage in central bank money, in view of the liquidity requirements imposed on banks under the Basel 3 framework. As it is unable to estimate the optimum amount of central bank reserves needed to ensure that its monetary policy is properly implemented, the Fed aims to reduce the stock of reserves to a sufficiently "ample" level.If QT2 is ended too early, it would have to activate its liquidity draining tools in order to limit the downwards pressure on short-term market rates
