Major Japanese life insurance institutions have indicated they will maintain or expand their domestic bond purchases in the second half of the fiscal year, providing potential demand support for Japanese government bond auctions. Super-long government bond yields are near multi-decade highs, reshaping the asset allocation logic of Japanese institutional investors.
Japan Post Insurance said it plans to increase purchases of yen-denominated bonds, while Daido Life Insurance raised its domestic bond holding target, focusing mainly on corporate bonds. Meiji Yasuda Life Insurance plans to keep its JGB holdings roughly unchanged while swapping low-yield bonds for higher-yielding ones.
These statements indicate that the purchasing appetite of one of Japan's most important groups of bond investors is recovering.
Signals of recovering demand are already visible in the market. The 20-year Japanese government bond auction held on Tuesday recorded the highest bid-to-cover ratio in history, showing that even amid rising Middle East tensions, higher oil prices, and global bond selloffs triggered by inflation concerns, elevated yields still attract buyers.
According to data from the Japan Securities Dealers Association, life insurance institutions have been net buyers of super-long Japanese government bonds for four consecutive months.
Life Insurers' Purchasing Appetite Recovers, Structural Adjustments Vary
A spokesperson for Japan Post Insurance said the company plans to continue buying government bonds to replace maturing holdings, stating, "Given the recent rise in interest rates, we currently view all maturities along the yield curve as potential investment targets."
Daido Life Insurance raised its domestic bond holding plan, mainly through increasing corporate bond purchases. Meiji Yasuda Life Insurance's strategy focuses on keeping total government bond positions roughly flat while replacing existing low-yield holdings with higher-yielding bonds to improve portfolio returns.
Life insurers' purchases of long-term government bonds carry structural significance 鈥?their asset-liability management needs naturally tilt them toward super-long-end allocations. As the Bank of Japan continues to scale back bond purchases, the moves of life insurers are particularly critical to the absorption capacity of government bond issuance.
High Yields Reshape Allocation Logic, Super-Long-End Appeal Returns
Super-long Japanese government bond yields have recently approached multi-decade highs, fundamentally changing the asset allocation considerations of Japanese institutional investors. After years of ultra-low interest rates that forced life insurers toward overseas assets and risk assets, the significant rise in yields is driving capital back toward domestic bonds.
Societe Generale strategist Stephen Spratt said: "Life insurers are likely to increase their willingness to raise JGB allocations in the second half. Domestic demand is recovering, and at the same time, super-long bond auction sizes have been reduced."
HSBC Asia-Pacific rates strategist Justin Heng noted that the relative stability of the yen exchange rate also helps investors increase JGB exposure. "Absolute yields are attractive, and the yield curve is steepening. In our view, the current relatively calm situation in the JGB market may persist for some time."
Japanese Life Insurers Hold Massive Investment Assets, JGB Auctions May Find Support
According to data from the Life Insurance Association of Japan as of the end of July, Japanese life insurers collectively hold approximately 386 trillion yen (about 2.4 trillion US dollars) in investment assets, meaning even slight changes in their allocation ratios can have a considerable impact on domestic and overseas markets.
However, market risks remain. Lombard Odier senior macro strategist Homin Lee pointed out that the possibility of a second supplementary budget under Prime Minister Sanae Takaichi's administration, the scale of the initial budget for fiscal 2027, and the direction of Bank of Japan policy all constitute potential disruptive factors.
Nevertheless, he added that as the bond supply outlook gradually becomes clearer and demand stabilizes, "government bond auctions in the coming weeks are expected to receive slightly firmer support."
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