美元飙升与日本央行陷入困境，日元跌至近40年低点

由于日本银行（BOJ）近期的加息未能阻止日元的持续下跌，日元正处于历史性崩溃的边缘，面临自1986年以来的最弱水平。随着美元向162关口攀升，市场波动达到白热化阶段，交易员们正高度警惕政府可能采取的干预措施。

遏制日元贬值的艰难斗争

尽管日本银行在本周早些时候将利率提高至31年来的最高水平，但日元仍面临巨大压力。该货币一直徘徊在两年来的低点附近，美元近期一度攀升至161.8日元。如果汇率突破2024年7月的峰值161.96，日元将进入自1986年以来未曾见过的区间。

这种疲软的主要驱动因素是日本与美国之间不断扩大的利差。虽然日本央行已发出政策转向的信号，但日本利率仍显著低于美国利率，这使得美元对全球投资者而言成为更具吸引力的资产。

美联储政策与美元霸权

美联储近期的信号增强了美元的强势地位。在最新的美联储会议之后，季度预测显示，19名决策者中有9人预计年底前会加息。这种鹰派立场推动美元本周兑一篮子主要货币上涨了1%，创下13个月以来的新高。

ING的货币策略师认为，美元可能会继续保持这一势头。随着市场在强劲经济数据公布后，试图将12月前可能发生的两次加息计入价格，这种“美联储会议后的热情”为美元提供了显著的助力。

地缘政治风险与干预担忧

地缘政治的不稳定性进一步使外汇市场形势复杂化。围绕美国与伊朗之间潜在和平协议的不确定性，强化了美元作为避险货币的地位。随着谈判面临延迟，由此引发的市场动荡为美元提供了额外的支撑。

Furthermore, traders are closely watching for direct market intervention from Japanese authorities. History shows that the Japanese government often steps in during periods of low liquidity—such as U.S. holidays—to prop up the yen. Currently, the pair is considered to be deep within "intervention territory." Additionally, domestic political concerns regarding Prime Minister Sanae Takaichi’s spending plans have further dampened investor confidence in the yen.

Global Currency Movements

The dollar's dominance is being felt across other major pairs as well:

  • The Euro: Hit a three-month low of $1.1418 before stabilizing.
  • The British Pound: Experienced volatility following mixed economic data, including stronger-than-expected retail sales but a larger-than-expected budget deficit.
  • The Swiss Franc: Softened against the dollar, which reached its highest level against the franc since November 2025.

Key Takeaways

  • Interest Rate Gap: Despite the BOJ's recent hike to a 31-year high, the massive gap between Japanese and U.S. interest rates continues to drive the yen toward its weakest level since 1986.
  • Fed Hawkishness: Federal Reserve projections suggesting potential rate hikes by year-end have fueled a 13-month high for the U.S. dollar.
  • Intervention Watch: With the yen nearing the critical 161.96 resistance level, Japanese authorities are expected to consider direct market intervention to prevent a total rout.