What Is US Dollar Liquidity?

Why dollar liquidity is the single most-watched macro variable

Almost every risk asset on earth — equities, credit, gold, Bitcoin, EM FX — is priced in dollars and funded with dollars. When the supply of usable dollars expands faster than demand, asset prices tend to drift higher even without earnings or fundamentals improving. When it contracts, the opposite happens, often abruptly.

This is why traders, allocators, and policymakers watch dollar liquidity rather than headline M2 or the Fed funds rate alone. M2 grows on a slow demographic clock. The funds rate moves only every six weeks. Dollar liquidity moves daily — sometimes hourly — and is the channel through which Fed and Treasury decisions actually reach markets.

The four channels that drive dollar liquidity

1. Federal Reserve balance sheet (Fed BS): The Fed expands liquidity by purchasing Treasuries and MBS (QE) and contracts it by letting holdings roll off (QT). Read more on the Fed balance sheet indicator page.

2. Treasury General Account (TGA): The Treasury's checking account at the Fed. When TGA falls, cash flows into bank reserves and lifts liquidity. When TGA rises — for example, refilling after a debt-ceiling resolution — liquidity is drained. See the TGA today page for the latest balance.

3. Overnight Reverse Repo (ONRRP): A facility where money-market funds park cash at the Fed overnight. A falling ONRRP balance can act as a hidden liquidity injection — that cash gets redeployed into Treasury bills and short funding. We track it inside the net-liquidity flow (Fed balance sheet - TGA - ONRRP), so a falling balance releases liquidity and a rising balance absorbs it.

4. Market stress and credit pricing: VIX, high-yield credit spreads, real yields, and the dollar index. These don't create liquidity, but they tell you whether liquidity is being demanded faster than supplied. A spiking VIX with widening credit spreads means risk capital is reaching for the exit even when policy is neutral.

How DollarLiquidity.com measures the regime

We distill the channels into a single 0–100 score called the DLI (Dollar Liquidity Indicator). The spine is the net-liquidity flow — the Fed balance sheet minus the Treasury General Account minus ON RRP — smoothed and read as its 6-month-equivalent rate of change: when that flow expands, liquidity is loosening; when it drains, it is tightening. An acute funding-stress override (the SOFR-IORB spread and SRF usage) is layered on via a noisy-OR, so a plumbing seizure registers as tight even when the balance-sheet math looks calm. Credit and market-risk channels are shown as context panels alongside the headline rather than folded into it.

The headline 0–100 reading is absolute, not a percentile: below 33 is loose (risk-on), above 67 is tight (risk-off), and the middle is neutral — the same cutoffs in every period, so today is directly comparable to any past date. DLI is a coincident gauge of the current stance — not a crisis detector or a multi-day predictor. Read the full methodology for the underlying math.

How to use dollar liquidity in your own framework

Use the DLI as the regime filter, not the trade signal. When DLI is loose and improving, the path of least resistance for risk assets is usually up. When it flips to tight and deteriorating, prior dovish narratives need to be re-examined.

Cross-reference with the asset-impact view to see how the current regime has historically rhymed with SPX, Nasdaq, gold, and BTC. The correlation is real at the regime level but noisy day-to-day — anyone selling you a daily lead-lag is overfitting to one cycle.

For deeper context, every indicator page exposes its latest value, percentile, and contribution to the DLI score, with a written interpretation that updates as the data updates.