Central banks’ role in financialization has received increasing attention in recent years. These debates have predominantly revolved around authorities’ ‘benign neglect’ of asset bubbles, their deregulatory policies, and the safety nets they provide for speculative exuberance. Most analyses refer to the dominance of pro-market interests and ideas to explain these actions. The present article moves beyond these accounts by showing how an alignment between techniques of monetary governance and ‘unfettered’ financial markets can explain central banks’ endorsement of increasingly fragile structures of liquidity and their strategic ignorance towards growing amounts of debt. We analyze the processes of abstraction and formalization by which the ‘programmes’ and ‘technologies’ of monetary governance have been made compatible with the texture of contemporary finance; and we show how central banks’ attempts to make markets more amenable to their methods of policy implementation shaped new conduits for financial growth. As empirical cases, we discuss the Federal Reserve’s experiments with different policy frameworks in the 1980s and the Bank of England’s twisted path to inflation targeting from 1979 to 1997. These cases allow us to demonstrate that the infrastructural power of contemporary central banking is predicated on the same institutional foundations that have made financialization possible.