日本央行加息预期重燃 全球股市头顶高悬“达摩克利斯之剑”：日元套息交易

Core Viewpoint - The strategy of yen carry trade is described as a "ticking time bomb" in global financial markets, facing significant risks of large-scale unwinding due to rising expectations of interest rate hikes by the Bank of Japan and potential increases in long-term government bond yields [1][2]. Group 1: Yen Carry Trade Dynamics - The yen carry trade involves borrowing in low-yielding yen to invest in higher-yielding assets, benefiting from stronger carry returns from overseas investments [1]. - The strategy is vulnerable to market downturns or a strengthening yen, which could lead to rapid unwinding of positions and significant market impacts [1][3]. - Rising expectations for interest rate hikes and fiscal stimulus in Japan are contributing to upward pressure on long-term bond yields, weakening the foundation of the carry trade [1][2]. Group 2: Historical Context and Risks - The BCA Research team warns that the current carry trade model could collapse similarly to events in 2008, 2015, and 2020, where rapid deterioration in global risk sentiment triggered sudden deleveraging [2][5]. - The combination of increased interest rate expectations, weakened risk sentiment, and a stronger yen is seen as a potential catalyst for large-scale unwinding of carry trades [2][3]. Group 3: Investment Recommendations - BCA advises long-term investors to go long on yen and short on the dollar, especially as expectations for interest rate hikes rise and the yen begins to rebound from historically weak levels [3][4]. - The yen has appreciated over 1% against the dollar in 2026, moving away from levels that could trigger intervention by the Bank of Japan or the Ministry of Finance [3]. Group 4: Systemic Risk Implications - The yen carry trade represents a systemic risk to global markets, as it is highly leveraged and interconnected across various asset classes [4][6]. - A significant unwinding of these trades could lead to sharp increases in yen value and declines in global risk asset prices, creating a feedback loop that tightens market liquidity and heightens risk aversion [5][6]. - Historical market turmoil has often been linked to the unwinding of carry trades, indicating the potential for widespread market disruptions [5][6].