1. For investors: Higher JGB yields → increased investment value → ETF inflows.
2. For the Japanese government: Higher JGB yields → increased interest expenses → increased debt servicing costs in fiscal year 2027.
3. For the yen: Higher yields on Japanese assets → theoretically positive for the yen, but fiscal risks and exchange rate hedging will offset some of the impact.
4. For US Treasuries: Slightly negative; the opportunity cost of Japanese capital repatriation decreases, potentially reducing some overseas bond allocations.
5. For the global bond market: A cause for concern; Japan is no longer a "zero-interest-rate pool," and the pricing logic of global bond markets is changing.