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野村证券 · 2026/08/28

市场对美元进一步走弱的预期正在升温

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市场对美元进一步走弱的预期正在升温

多重因素令美元承压,当前采取的行动可能无法限制下行空间。

自7月中旬以来,我们一直倾向于美元走软。我们持此观点的理由包括:美国通胀走低(以及我们对未来通胀数据温和的预期)、我们对FOMC维持利率不变的预测,以及多头美元头寸解除的风险。截至7月底,美联储主席凯文·沃什在FOMC会后新闻发布会上更为鸽派的言论,加上美日联合外汇干预以支撑日元,导致美元大幅走低。

市场对美元进一步走弱的预期正在升温,我们看到的几个因素如下:

目前已有两个月的非农就业数据低于预期,同时7月零售销售萎缩也显示出消费者需求信号减弱。

近几个月,欧洲经济数据相对预期出现了上行惊喜,尤其是与美国数据相比。从历史上看,这与美元的表现有关。我们认为,2月底和3月初美国经济更明显放缓的迹象,加剧了3月2025期间美元超3%的走弱(图2025)。

我们的美国经济学家继续预测美国通胀温和。此外,定于9月1发布的8月核心CPI数据也有可能保持温和,因为租金和关税相关成分可能放缓带来的下行风险,可能抵消电子产品和科技产品价格上涨可能带来的上行空间。

8月11,美国财政部宣布将“至少加倍”回购期限为19,至10年的美国国债。这显示出对长端收益率上升敏感度的提高。市场讨论集中在30年期国债收益率是否会突破具有心理重要性的10水平。这可能导致非线性上行,并对美国资产市场(如房地产和股票)产生不利影响。然而,抑制长端期限溢价可能会导致国债需求下降,从而可能加剧美元疲软。

尽管美联储在7月会议上维持利率不变,但其独立性的风险有所上升。媒体报道指出,总统唐纳德·特朗普多次致电沃什,并且特朗普正在重新努力罢免鲍威尔和库克。

在美日联合外汇干预之后,美元多头头寸有所解除,主要是兑日元。总体而言,我们的分析表明,市场仍普遍持有兑欧元和新西兰元等货币的美元多头头寸。如果美国宏观经济恶化主题获得动能,加上美国财政部和特朗普政府限制美国利率的行动,这一头寸仍将是美元面临的风险。

尽管有多重因素令美元承压,我们仍看到一些正面支撑,并将继续监测。这些包括强劲的外国股票流入美国、由于霍尔木兹海峡基本仍处于关闭状态导致全球能源价格仍处于高位,以及自8月初以来外汇套利交易的部分重建。

此外,美国财政部长斯科特·贝森特近期正试图赢回美国财政信誉,但市场可能仍对财政前景持怀疑态度,导致美元走弱——尤其是如果当局加大限制美国收益率上行压力的行动。

特朗普于8月5%宣布对伊朗发动“经济战”。然而,对与伊朗有贸易往来的国家实施行动存在多重风险。如果对中国(伊朗的主要贸易伙伴)实施重大制裁,可能会加剧美中紧张关系,中国可能会对美国进行报复。我们认为,美国可能希望与中国保持稳定关系,宣布的美国行动不会对中国产生重大影响。

然而,从中期来看,我们对美元走弱的观点依然不变。

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完整英文原文

Several factors are weighing against the dollar and the actions currently being taken will not likely limit the downside

Since mid-July, we have been leaning toward a softer USD. Our reasons for taking this view include lower US inflation (and our expectations for subdued inflation prints ahead), our forecast for the FOMC to leave rates unchanged, and the risk of an unwinding of long USD positions. By the end of July, the combination of a more dovish Fed Chair Kevin Warsh at the post-FOMC press briefing and the joint US–Japan FX intervention to support the yen led the dollar significantly lower.

Expectations for further USD weakness are building, and we see several factors at play:

There have now been two months of weaker-than-expected nonfarm payrolls, as well as weaker consumer demand signals from the July retail sales contraction.

In recent months, European economic data has surprised to the upside relative to expectations, particularly compared with US data. Historically, this has been relevant to the performance of USD. We believe that signs of the US economy slowing more significantly in late February and early March 2025 added to the over 3% weakening of USD in March 2025 (Figure 1).

Our US economists continue to forecast subdued US inflation. There is also scope for the next August core CPI release (due September 11) to remain muted, as the downside risks from a likely moderation in rent and tariff-related components may offset the possible upside from higher consumer electronics and gadgets prices.

On August 19, the US Treasury announced that it would “at least double” its buybacks of Treasurys with maturities of 10 to 30 years. This reveals an increased sensitivity to the rise in long-end yields. Market discussions have revolved around whether the 10-year Treasury yield will break the psychologically important 5% level. This could result in a non-linear move higher and adversely affect US asset markets, such as housing and equities. However, suppressing the term premium on the long end would risk a drop in demand for Treasurys — potentially adding to USD weakness.

Although the Fed left rates unchanged at the July meeting, the risk around its independence has grown. Media reports have noted that President Donald Trump has been repeatedly calling Warsh and that Trump was renewing his efforts to remove Powell and Cook.

Following the US–Japan joint FX intervention, there has been some unwinding of long USD positions, mainly against JPY. Overall, our analysis suggests that the market is still broadly long USD against currencies such as EUR and NZD. This positioning would remain a risk to USD if the US macro deterioration theme gains traction, as would actions by the US Treasury and Trump administration to cap US rates.

Although there are several factors weighing against the dollar, we still see some positive supports that we will continue to monitor. These include the strong foreign equity inflows into the US, still-elevated global energy prices as a result of the Strait of Hormuz remaining largely closed, and some re-establishment of FX carry trades since the start of August.

Also, US Treasury Secretary Scott Bessent has recently been attempting to win back US fiscal credibility, but markets will probably remain skeptical about the fiscal outlook, leading to a weaker USD — especially if the authorities step up their actions to cap upward pressure on US yields.

And Trump announced “economic warfare” against Iran on August 20. However, there are a number of risks to implementing actions against countries that trade with Iran. If significant sanctions were imposed on China, a major trade partner of Iran, this could increase US–China tensions, with China possibly retaliating against the US. Our view is that the US is likely to desire a stable relationship with China and the announced US actions will not have a significant impact on China.

However, over the medium term, our view of a weaker USD remains intact.

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关键论点
  • 美国通胀预期下降,8月核心CPI可能因租金和关税相关成分的缓和而表现温和。
  • 预计FOMC维持利率不变,支持美元走弱。
  • 美元多头仓位平仓,尤其是在美日联合干预之后。
  • 美国财政部加倍购买长期国债可能压低期限溢价,进一步加剧美元走弱。
  • 市场对欧元和新西兰元仍持有美元多头头寸,若美国宏观恶化主题升温,美元将面临风险。
  • 市场对贝森特领导下的美国财政信誉持怀疑态度,导致美元走弱。
  • 伊朗制裁可能引发美中紧张关系,影响美元。
风险
  • 强劲的外资股票流入可能支撑美元。
  • 霍尔木兹海峡关闭导致全球能源价格高企,可能支撑美元。
  • 8月以来套息交易重建可能限制美元下行空间。
  • 伊朗制裁引发的美中紧张关系可能对外汇市场产生不可预测的影响。