What Is BoJ BS?

What is BoJ BS?

BoJ Balance Sheet (Total Assets, JPY) 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.

JPNASSETS — Bank of Japan total assets, monthly, in billions of JPY. Tracks the world's most structurally USD-borrowing economy (Japanese lifers / banks fund US fixed-income via JPY/USD FX swaps). Monthly cadence — context indicator. JPY-denominated, no auto-currency-conversion.

Why BoJ BS matters for risk assets

Changes in BoJ BS 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 BoJ BS 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 Fed BS Size, ECB BS, Dollar Index 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 — BoJ BS 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 BoJ BS 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. BoJ BS 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 BoJ BS if it's flagged as significant. This top-down approach prevents single-indicator tunnel vision. Combine with Fed BS Size, ECB BS, Dollar Index for the most complete assessment.