SynopsisJapanese government bond yields received temporary relief after U.S. Treasury intervention, but analysts warn the 10-year JGB yield could surpass 3%. Persistent inflation, a weak yen, expansive fiscal policy, rising oil prices and expectations of Bank of Japan tightening continue to pressure Japanese debt markets, keeping borrowing costs elevated.ReutersThe intervention helped global bond markets recover temporarily, but analysts say the underlying factors pushing Japanese yields higher remain intact.Actions by the U.S. Treasury to contain a surge in long-term borrowing costs have provided temporary relief to Japanese government bonds, but analysts say the 10-year JGB yield could still breach the closely watched 3% threshold, according to a report by Reuters.The 10-year Japanese government bond yield climbed to a three-decade high of 2.945% on Tuesday, highlighting the pressure spreading through global debt markets as investors contend with persistent inflation and rising concerns about government debt burdens.The move came after long-term U.S. Treasury yields reached a 19-year high earlier this week. The U.S. Treasury responded by increasing the scale of its bond buybacks, while Treasury Secretary Scott Bessent signalled additional support for market liquidity.The intervention helped global bond markets recover temporarily, but analysts say the underlying factors pushing Japanese yields higher remain intact.A weak yen and expansive fiscal policy are among the key pressures facing the Japanese bond market, according to Mari Iwashita, executive rate strategist at Nomura Securities, as reported by Reuters. She expects the long-term Japanese government bond yield could eventually rise toward 3.3%.Also Read | Walmart stock selloff explained: Here’s what spooked investorsInflationary pressures are also complicating the outlook for global fixed-income markets. The continuing Middle East crisis and elevated oil prices have increased concerns about persistent inflation, while Japan's bond market had already been under pressure before the conflict because of growing worries over the fiscal implications of stimulus policies advocated by Prime Minister Sanae Takaichi.The U.S. Treasury's intervention has raised speculation that Tokyo could consider similar measures to stabilise the JGB market. However, U.S. yields have already begun moving higher again, suggesting that the Treasury's buyback strategy may provide only temporary relief rather than reverse the broader rise in long-term borrowing costs, according to Yuki Fukumoto, head of the financial research department at NLI Research Institute, as cited by Reuters.Shorter-dated Japanese government bonds are also facing pressure, with yields approaching multi-decade highs as investors increasingly expect the Bank of Japan to tighten monetary policy to support the yen and contain inflation.The prospect of further increases in Japanese interest rates means the upward pressure on JGB yields is unlikely to disappear soon. Keisuke Tsuruta, senior fixed income strategist at Mitsubishi UFJ Morgan Stanley Securities, said the phase of rising interest rates remains ongoing.For Japanese bond investors, the key test now is whether the recent global bond-market relief can be sustained. If U.S. yields resume their climb and domestic fiscal and inflation pressures persist, the 3% level on the 10-year JGB could become an increasingly realistic target.Read More News on(What's moving Sensex and Nifty Track latest market news, stock tips, Budget 2025, Share Market on Budget 2025 and expert advice, on ETMarkets. Also, ETMarkets.com is now on Telegram. For fastest news alerts on financial markets, investment strategies and stocks alerts, subscribe to our Telegram feeds .) Subscribe to ET Prime and read the Economic Times ePaper Online.and Sensex Today. Top Trending Stocks: SBI Share Price, Axis Bank Share Price, HDFC Bank Share Price, Infosys Share Price, Wipro Share Price, NTPC Share Price...moreless(You can now subscribe to our ETMarkets WhatsApp channel)Read More News on(What's moving Sensex and Nifty Track latest market news, stock tips, Budget 2025, Share Market on Budget 2025 and expert advice, on ETMarkets. Also, ETMarkets.com is now on Telegram. For fastest news alerts on financial markets, investment strategies and stocks alerts, subscribe to our Telegram feeds .) Subscribe to ET Prime and read the Economic Times ePaper Online.and Sensex Today. Top Trending Stocks: SBI Share Price, Axis Bank Share Price, HDFC Bank Share Price, Infosys Share Price, Wipro Share Price, NTPC Share Price...moreless