What does the Fed's hawkish rate hike mean for the US dollar?

The Federal Reserve's more hawkish stance than expected provided the strongest short-term support for the dollar, but ongoing geopolitical conflicts and political pressure from the upcoming midterm elections have kept market uncertainty high, and confidence in directional judgments in the foreign exchange market remains low.

The Federal Reserve's September policy meeting released a strong hawkish signal, and the market reaction was stronger than previously expected. According to Citi research, the September meeting results have already made the October meeting an "active meeting," with the market currently pricing in a further rate hike of about 13 basis points in October. The US Dollar Index (DXY) has subsequently strengthened its technical pattern, completing a double bottom confirmation, with a target of 101.15.

Citigroup research points out that the current macroeconomic combination for the US dollar—high yields coupled with downward pressure on stocks—is historically the most favorable market condition for the dollar. Meanwhile, the euro, Swiss franc, Swedish krona, and New Zealand dollar all face downward pressure, with the euro/dollar exchange rate potentially retesting the 1.13 low.

Hawkish sentiment exceeds expectations, fueling expectations of an October rate hike.

Citigroup Research's previous baseline assessment was that the Federal Reserve would struggle to "outperform" the market's hawkish pricing of its policy path, risking disappointing the market. However, this policy meeting, led by Warsh, completely overturned this prediction.

This meeting not only confirmed the interest rate hike, but the hawkishness of its forward guidance also prompted the market to reassess the subsequent path. The probability of an interest rate hike at the October meeting has increased significantly, and the market has already priced in an additional 13 basis points of tightening expectations.

Citigroup Research believes that despite the risk of pricing ahead of reality, this tightening expectation may continue to support US Treasury yields and the US dollar until geopolitical conflicts become clearer.

Geopolitical conflicts and midterm elections constitute persistent variables.

Geopolitical situation is another key variable in the current foreign exchange market.

According to a Reuters report on September 9, Trump said the war with Iran could end after the US midterm elections, consistent with the previous assessment by a Citigroup research team: the November midterm elections could be the trigger for the situation, and the Iranian leadership may have an incentive to push up energy prices before the elections.

The spot premium signal in the energy market confirms this assessment. Citigroup research indicates that the price spread between spot Brent crude and Brent futures contracts (the spot premium) has widened significantly again, suggesting tight supply in the physical market. With the conflict extending into the Bab el-Mandeb Strait and east-west oil pipelines, this tension is unlikely to ease in the short term. Analysts point out that if the situation deteriorates significantly, the premium could narrow rapidly, but this possibility is relatively low before the midterm elections.

The US dollar has confirmed a double bottom technically, but a key resistance level is imminent.

From a technical perspective, the DXY's movement provides support for the US dollar bulls. Citigroup research points out that the current price pattern has confirmed a double bottom structure, targeting 101.15, similar to the double bottom pattern seen in April and May—when the DXY overshooted to 101.80 after completing its double bottom. If this round of price action replicates the same path, the euro/dollar exchange rate will subsequently fall back to the 1.13 low range.

However, the upside potential is not without obstacles. Citigroup research has identified the 102.20 to 102.50 range as a key resistance zone, a level that coincides closely with the 200-week moving average and a historically significant long-term trendline. Analysts have explicitly stated that this is not a target price, but rather a reminder to investors to be aware of potential resistance levels following a potential overvaluation of the US dollar.

Stock market pressure coupled with a cooling AI narrative provides additional support for the US dollar.

The performance of the equity market provided additional support for the US dollar.

Citigroup research points out that stock market volatility is historically normal in the initial stages of interest rate hikes, and the US stock market is already showing signs of this. In the longer term, social and political obstacles surrounding artificial intelligence, as well as uncertainties surrounding the pace of model development, may continue to suppress market sentiment before the midterm elections.

Citigroup's US equity strategy team maintains its bullish outlook driven by earnings before the end of the year, but acknowledges that the triple pressures of negative AI narratives, high interest rates, and geopolitical risks may keep the market highly volatile during the lull before earnings season.

Citigroup emphasizes that the combination of rising yields and falling stocks is historically the most favorable macroeconomic condition for the US dollar, and the market is currently in this condition, with potential for further gains in the coming days.

Be wary of a rapid reversal of the situation.

Despite a clear bullish outlook for the US dollar in the short term, the Citi research team has repeatedly emphasized the risk of a reversal in their overall assessment. Firstly, the market has already largely priced in this FOMC meeting, resulting in diminishing marginal positive effects. Secondly, the adjustment to the PCE statistical methodology remains a potential variable to be digested. Thirdly, price movements on the day of the Fed's decision are historically highly volatile, and it is unwise to overinterpret the day's price action.

Citigroup concludes that, in the absence of new information, the US dollar lacks clear downward momentum in the short term, and the path for the euro to retest the 1.13 low remains open. However, given the current market conditions, the situation could fundamentally change in a very short time, and investors should avoid over-betting on a single direction.

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