Nippon Life, Japan's largest life insurer with $2.7 trillion in assets under management, is open to becoming a net buyer of Japanese government bonds (JGBs) in the coming fiscal year. This potential shift is driven by a rare alignment of higher JGB yields, which are now at 0.8% for 10-year bonds (up from 0.2% in 2021), and a significantly depreciated yen, currently at ¥155 to the dollar, representing a 15% year-over-year decline. The insurer’s CIO, Kazuhiko Ogata, stated that while they are not exiting foreign markets, they are reallocating capital to domestic bonds to achieve better risk-adjusted returns, as the yen's depreciation has eroded hedged returns on overseas bonds.
This move signals a strategic reversal from decades of overseas diversification for Nippon Life, whose foreign bond holdings are projected to decline from a 2022 peak of 35% to 28% by March 2025. This decision, echoed by other major Japanese insurers like Dai-ichi Life and Meiji Yasuda Life, is also supported by regulatory changes, as Japan's Financial Services Agency relaxed capital requirements for JGB holdings in 2023, reducing risk weights from 20% to 10% for insurers with strong solvency margins. The 100-basis-point premium offered by domestic bonds over pre-pandemic levels, combined with surging hedging costs of 3.5% for foreign bonds due to yen weakness, makes JGBs an attractive investment.
The potential for Nippon Life and other insurers to increase domestic bond investments could inject substantial capital into the JGB market. A 5% reallocation by major life insurers, who collectively manage ¥400 trillion ($2.7 trillion) in assets, could inject ¥20 trillion into the market, tightening spreads and lowering borrowing costs for Japanese corporates. The Bank of Japan estimates that a 1% increase in life insurer JGB demand could lower corporate bond yields by 15-20 basis points, boosting capital expenditure by ¥1.2 trillion annually. This increased demand from insurers could complicate the Bank of Japan's efforts to normalize policy and potentially accelerate its tapering of JGB purchases, creating ripple effects in global bond markets.
