Published by Pratik Algo
US Dollar Index Weekly Forecast: Sep 21–25, 2026
US Dollar Index weekly forecast for September 21–25, 2026: review the Fed hike, DXY's weekly gain, key price levels and upcoming US economic releases.
Daily market research from Pratik Algo covering price action, macro context and known event risks.
By Pratik Algo | Prepared September 20, 2026 Week reviewed: September 14–18 | Week ahead: September 21–25, 2026 Research checked: 08:45 UTC, September 20. Calendar times are UTC.
The US Dollar Index enters the new week after a strong advance around the Federal Reserve's September policy decision. DXY's September 18 historical closing reading was 100.22, compared with 99.12 a week earlier—a calculated gain of approximately 1.11%. These are Friday reference prices, not a live Sunday quote. DXY historical data.
This Dollar Index weekly forecast examines whether the policy backdrop can sustain demand for the currency as attention shifts to business surveys, employment indicators and consumer expectations. The key distinction is between last week's confirmed rate increase and whatever additional tightening investors anticipate next.
What drove the dollar last week?
The Fed raised rates and its projected policy path
On September 16, the Federal Reserve increased its target range by 25 basis points to 3.75%–4.00%, with all 12 voting members supporting the decision. Policymakers described resilient domestic spending and inflation that remained elevated. Federal Reserve statement.
The September projections put the median end-2026 federal funds rate at 4.1%, up from 3.8% in June. The median for end-2027 also rose, to 4.1% from 3.6%. These projections represent policymakers' conditional assessments; they do not commit the Fed to a particular decision at its next meeting. Fed economic projections.
Pratik Algo interpretation: the higher projected path supports the argument for sustained US interest-rate support. However, a policy decision already reflected in market prices cannot be assumed to generate another identical dollar move. Fresh data must change expectations to provide a new catalyst.
US spending added context to the decision
August retail and food-services sales increased 1.2% month over month, while July's decline was revised to 0.5%. The figures are not adjusted for inflation. US Census Bureau retail report.
The rebound helps explain why an immediate collapse in consumer demand is not the only plausible economic scenario. For the dollar, the next question is whether that resilience continues in business activity and employment without a convincing easing of price pressures.
Japan showed why currency reactions depend on expectations
The Bank of Japan announced a 7–2 decision on September 18 to raise its overnight rate target to around 1.25%, effective September 24. Bank of Japan decision.
Yet Reuters reported that the yen weakened as dissent and guidance complicated expectations for further increases. The dollar subsequently pared gains following reports of Japanese rate checks. Those reports should not be treated as confirmation of currency intervention. Reuters currency report.
For DXY, this is a reminder that the response to a rate announcement depends on the outlook investors had already priced.
Why euro and yen developments matter for DXY
The Dollar Index measures the dollar against six currencies: the euro, Japanese yen, British pound, Canadian dollar, Swedish krona and Swiss franc. It is therefore a relative currency measure. ICE index product specifications.
Our interpretation: European activity data deserve attention alongside US releases. Stronger European results could support the euro and offset dollar strength elsewhere. Similarly, a sharp yen recovery could weigh on the index even if the US policy outlook remains firm.
DXY reference levels for the week ahead
| Reference | Basis |
|---|---|
| 100.56 | September 14–18 weekly high |
| 100.17 | Friday's low |
| 100.00–100.02 | Psychological round number and Thursday's low |
| 99.54 | September 16 low |
| 99.07 | September 14–18 weekly low |
Historical references come from the dated DXY price table. They are areas to monitor, not guaranteed support or resistance. Quotes can vary across providers and futures contracts.
Economic calendar: September 21–25
These events are scheduled; their results were not available at the research cutoff.
| Date | Time, UTC | Event |
|---|---|---|
| September 23 | 07:15–08:30 | France, Germany, euro area and UK flash PMIs |
| September 23 | 13:45 | US flash manufacturing and services PMIs |
| September 24 | 07:30 | Swiss National Bank policy assessment |
| September 24 | 12:30 | US initial jobless claims |
| September 24 | 14:00 | US new home sales |
| September 25 | 12:30 | US durable goods orders |
| September 25 | 14:00 | Final University of Michigan sentiment and inflation expectations |
Schedule checked against the weekly economic calendar, SNB event schedule and US Census release calendar. Times are converted to UTC and may change.
Japan has bank holidays on September 21–23. Lower participation in affected markets could make short-term currency moves less representative of broader demand. Fed speeches during the week may also clarify how officials interpret the September decision. Weekly calendar.
PCE and GDP timing: the BEA schedules August Personal Income and Outlays, including PCE inflation, and the third estimate of second-quarter GDP for September 30 at 12:30 UTC. Both fall outside this week's window. BEA release schedule.
How the releases could change the USD outlook
For the flash PMIs, watch the balance between activity, employment and prices. Strong activity accompanied by persistent price pressure could reinforce expectations of restrictive policy. Weaker activity with easing prices could encourage investors to reassess the need for further tightening.
Jobless claims provide another check on labour-market conditions, although one weekly reading can be noisy. Durable goods orders help assess business demand, while revisions and volatile transport orders can affect the headline. Consumer inflation expectations may matter more for the policy debate than the sentiment index alone.
These are analytical scenarios. Market reactions depend on results relative to expectations and on simultaneous moves in other currencies.
Three possible paths for DXY
Further strength: holding the 100 area and sustaining a move above 100.56 would support a continuation scenario, especially if data strengthen the case for additional US tightening.
Consolidation: mixed data could leave the index absorbing last week's policy news. Repeated moves between the round-number area and the weekly high would offer less evidence of a lasting breakout.
A deeper pullback: a sustained loss of 100, followed by 99.54, would weaken the recent advance and bring 99.07 back into view. Softer US data or stronger counterpart currencies could contribute.
These paths are conditional, with no assigned probabilities. A brief move through a level is less informative than whether the market can remain beyond it after the news has been absorbed.
For the earlier policy reaction, read our September 17 Dollar Index analysis. Further coverage is available on the Pratik Algo market research page.
*Market commentary is educational and does not constitute personalised investment advice. Forecasts and reference levels can change as new information arrives.*
*Cover: AI-generated editorial illustration.*
Risk notice: This market overview is educational, not financial advice or a trade signal. Market conditions can change quickly. Verify current prices and use independent risk management before making any decision.