Recent auctions of Japan's 30-year government bonds have shown a pattern of firmer demand compared to their 12-month average. For example, a Thursday auction saw demand above the 12-month average for 30-year debt, with yields on 20- and 40-year debt increasing by 8 and 7.5 basis points respectively bloomberg.com. Another auction earlier in the year, despite Middle East tensions, also drew solid demand, indicated by a bid-to-cover ratio of 3.66, which surpassed the previous sale's 3.64 and the 12-month average of 3.34 bloomberg.com. These instances suggest a resilient investor appetite for Japanese long-term debt.
However, demand levels have fluctuated. A Tuesday sale notably saw the strongest demand since 2019, with a bid-to-cover ratio of 4.55 against a previous auction's 2.94 and a 12-month average of 3.41 finance.yahoo.com. This surge in demand was attributed to historically high yield levels, attracting investors despite concerns over fiscal policy and inflation. Miki Den, a senior interest-rate strategist at SMBC Nikko Securities, noted that "Yields were already at historically high levels, and they rose further in the morning which boosted demand," suggesting a potential turning point for the yield curve finance.yahoo.com.
Despite the robust overall demand, the breakdown of buyers in the strongest sale since 2019 suggested that a significant portion (74%) of unknown buyers might be looking for tactical trades rather than long-term holdings finance.yahoo.com. Conversely, there was one report of the weakest demand in a year during a Wednesday auction, where the bid-to-cover ratio fell and bond futures declined bloomberg.com. This indicates that while overall trends show stronger demand, market sentiment can still lead to periods of weaker interest.