What Is Bank Reserves?

What is Bank Reserves?

Bank Reserves (Reserve Balances at the Fed) is tracked in our framework because it captures a distinct dimension of US dollar liquidity. The DLI headline is built from the net-liquidity flow — the Fed balance sheet minus TGA minus ON RRP — plus an acute funding-stress override (SOFR-IORB, SRF). Policy and funding inputs drive that headline directly; credit and market-risk inputs are shown as context panels on the liquidity map alongside it.

The indicator uses a "lower_worse" direction, meaning falling values signal tightening liquidity conditions. This directional assignment is based on the historical relationship between the indicator's movement and subsequent risk asset performance.

WRESBAL — reserve balances held by depository institutions at the Federal Reserve, in trillions of USD. The raw cash level of the banking system, and the number market participants watch for "reserve scarcity" (the level fell from a ~$4.3T peak toward ~$3T as QT drained it). Display-only context, NOT in the DLI score: the headline tracks the net-liquidity FLOW (is liquidity being added or drained now), and reserves enter that flow via WALCL − TGA − ON RRP. The absolute level is shown here because it is the figure traders quote, while the reserve-buffer ratio normalizes it against bank assets. A reserve LEVEL was deliberately kept out of the score — it anti-tracks financial conditions in an ample regime.

Why Bank Reserves matters for risk assets

Changes in Bank Reserves influence the broader liquidity environment through both direct and indirect channels. Directly, it affects the cost or availability of funding. Indirectly, it shifts market expectations about future policy or credit conditions.

For Bitcoin and equities, the impact is most visible when Bank Reserves moves to extreme z-scores (above +1.5 or below -1.5). At these levels, the historical correlation with risk asset returns strengthens significantly. Moderate moves within the normal range tend to have weaker predictive power.

Cross-reference with Reserve Buffer, ON RRP, TGA Balance, Fed BS Size, Net Liquidity for multi-indicator confirmation. The strongest signals come when multiple related indicators move in the same direction.

How to interpret daily updates

On the indicator detail page, follow this 3-step process:

Step 1: Check the percentile (5Y) to understand historical context. Above the 75th percentile is noteworthy; above the 90th is extreme. Step 2: Review the 7-day and 30-day trend direction — trend matters more than any single reading. Step 3: Read it beside the DLI score, not inside it — Bank Reserves is reference context and never appears as a score driver, so its job is to explain or contradict what the headline is doing, not to move it.

Pay attention to divergence instead: when Bank Reserves moves hard while the DLI score stays flat, that gap is the signal. A context indicator earns its place precisely when it disagrees with the headline.

Common mistakes and better workflow

Mistake: assuming everything charted on this site feeds the score. Bank Reserves does not — it carries zero weight in the DLI and can never show up as a listed driver. Reading a move here as "so the score should have changed" is the single most common error with reference indicators.

Better workflow: Start with the score reading on the homepage. Then check the top drivers. Only then drill into Bank Reserves if it's flagged as significant. This top-down approach prevents single-indicator tunnel vision. Combine with Reserve Buffer, ON RRP, TGA Balance, Fed BS Size, Net Liquidity for the most complete assessment.