Most market commentary focuses on prices. The better question is what moves prices in the first place. For risk assets as a group, the answer is global liquidity.

Global liquidity is the total pool of capital and credit available across the financial system. It is shaped by central bank balance sheets, commercial bank lending, fiscal flows, and the collateral that underpins short-term funding markets. When that pool expands, capital searches for returns and flows into risk assets. When it contracts, the tide goes out and the most speculative assets fall first and fall hardest.

This cycle runs on a rhythm of roughly three to five years. It does not track the calendar and it does not track earnings. It tracks the willingness and ability of the system to create and roll over credit. Analysts like Michael Howell have shown that a large share of asset returns can be explained by the direction of this cycle rather than by any individual company or narrative.

For digital assets, this matters more, not less. Bitcoin and the broader crypto market are among the most liquidity-sensitive assets in the world. They have no earnings to anchor them and no central bank to defend them. They rise fastest when liquidity is abundant and fall fastest when it drains. That sensitivity makes them both a risk and an opportunity, depending on where you are in the cycle.

The practical takeaway is simple. Before forming a view on any risk asset, form a view on liquidity. Is the system expanding credit or contracting it. Are central banks easing or tightening. Are fiscal deficits injecting capital or withdrawing it. Get the direction of the tide right, and individual positioning becomes far easier.

The liquidity cycle does not tell you what to buy on any given day. It tells you which way the wind is blowing. That is worth more than most people realise.

Measuring the Cycle in Practice

Global liquidity is not one number on a terminal, it is a composite built from central bank balance sheets across the major economies, commercial bank credit creation, and cross-currency funding conditions, aggregated and converted to a common currency to strip out exchange rate noise. The reason this composite matters more than any single central bank’s balance sheet is that capital is globally mobile: a liquidity tightening in one jurisdiction can be offset by easing in another, and risk assets respond to the aggregate tide, not to any one country’s tap.

The practical signal is the rate of change, not the level. A balance sheet that is enormous but shrinking is a headwind, while one that is smaller but expanding is a tailwind, and conflating stock with flow is the single most common misreading of this framework. The other common error is timing: liquidity effects on risk assets typically lag the underlying central bank actions by a matter of months, since the transmission runs through bank lending and collateral markets before it shows up in equity multiples, which means the liquidity cycle is a lens for understanding a market move already underway more often than a precise forecasting tool for the next one.