BOJ accounts and a firm dollar test Japan’s normalisation

On 8 October, the US 10-year Treasury yield stood at 5.22%, and the two-year stood at 4.75%. That leaves 47 basis points of curve steepness, a wide enough gap to keep dollar fixed-income carry alive for investors comparing short-dated funding with longer-dated exposure.

The dollar side of the global carry trade has another marker. On 2 October, the trade-weighted dollar index was 121.3848, above the round 120 level. A firm dollar can reinforce the return from holding dollar assets when the position is funded in a lower-yielding currency, and it can also raise the local-currency value of yen-funded dollar exposure until the hedge or funding leg is paid.

Overnight dollar funding costs were close together on 9 October. The effective federal funds rate was 3.88%, while SOFR was 3.87%. One basis point separates the two, suggesting money-market conditions were not showing stress in those readings. The VIX was 15.21 on 12 October, a level in the mid-teens that often coincides with demand for yield rather than demand for protection.

BOJ publications carry the domestic burden

The Japanese side of the story rests on two publication references. The Bank of Japan publishes a Consumption Activity Index, according to the bank’s materials. One side treats that as enough to use the index as a gauge of household spending; the other side wants the primary BOJ release before putting weight on it.

The next test will be whether domestic spending and balance-sheet signals align with a policy path that can survive a dollar index above 121 and a US 10-year above 5%.

A release attributed to the Bank of Japan says accounts dated 30 September were published. Those two items do different work. The consumption index speaks to the demand side of the economy, which matters if policy normalisation is to be sustained by domestic spending rather than by external price pressures. The accounts give a balance-sheet view, which matters because the central bank’s holdings and operations shape liquidity, bond-market functioning and the path of balance-sheet reduction.

The timing is also part of the signal. The accounts are dated 30 September, and the market readings in this story run from 2 October to 12 October. That places the balance-sheet snapshot close to the current data, not in a distant quarter. Whether that timing is routine depends on the bank’s publication calendar, but it means the accounts are meant to be read alongside the present rate and currency backdrop.

The market test is narrow

The available numbers do not give a full Japanese picture. They do not include a Japanese policy rate, a JGB yield or a direct measure of yen funding. They show the external backdrop: high US yields, a firm dollar and low equity volatility.

That backdrop can cut two ways. If Japan’s consumption data hold up and the balance-sheet accounts show a steady path, the case for gradual normalisation becomes easier to make without relying on a weak currency. If the data are soft, the external incentive to keep yen funding cheap remains stronger, and any move toward normal policy has to work against a carry trade that is still paid by the dollar side of the equation.

For JGB volatility, the US curve is the reference point. A 10-year Treasury at 5.22% sets a high global duration anchor. A two-year at 4.75% shows that the front end is not far below it. When the anchor is this high, even small domestic signals can move longer-dated Japanese bonds, because investors are comparing scarce yield across markets and watching the currency leg.

The open question is whether the Japanese publications can carry the weight the market is placing on them. The consumption index and the accounts are specific, dated artifacts. They are also narrow. The next test will be whether domestic spending and balance-sheet signals align with a policy path that can survive a dollar index above 121 and a US 10-year above 5%.