The US dollar is trading slightly higher during the Asian session on Wednesday, hovering near the 99.85 mark. Tonight's consumer price index (CPI) data will serve as a critical catalyst for the near-term direction of the greenback.

The US Bureau of Labor Statistics will release the July CPI report at 8:30 p.m. Beijing time on Wednesday. Market expectations call for headline CPI to rise 0.1% month-over-month, with an annual rate of 3.4%. Core CPI is forecast to increase 0.2% from the prior month, with an annual pace of 2.5%. Against a backdrop of reduced communication from Federal Reserve Chair Jerome Powell and notable internal divisions, this inflation report will be key for markets assessing the likelihood of a September rate hike.

At the July Federal Open Market Committee (FOMC) meeting, the committee voted 9-3 to hold rates steady, with three voting members favoring a hike. Chair Powell has maintained a hawkish tone on price pressures, but his strategy of limiting communication has left markets without clear direction. Analysts note that a strong CPI print could force Powell to back up his words with action, as one strategist put it, "a strong report may compel the Chair to prove with actions what he had difficulty articulating with words last month." Market pricing suggests a roughly 50-50 probability of a hike versus a hold, making this CPI report the first major test of which faction within the Fed is more aligned with current economic realities. However, with another set of CPI and nonfarm payrolls (NFP) data due before the September 16 FOMC meeting, this report will not be the final deciding factor, though it will significantly influence market expectations.

While the Fed technically focuses on the core Personal Consumption Expenditures (PCE) price index for policy guidance, the CPI report holds equal importance for traders given its earlier release. Although the "prices paid" component of the PMI survey was flat last month, historical correlations suggest it could still point to a higher overall inflation reading. A hotter-than-expected CPI would put pressure on Powell to deliver a rate hike in September, while a benign reading would buy him time, including ahead of his keynote speech at the Jackson Hole symposium later this month. Regardless of the outcome, the market impact of this CPI report is expected to be significant.

From a technical perspective, the dollar index has shown early signs of a potential bottom after a sharp decline in late July. Since the start of August, the index has found support at the 99.40 level on two occasions, coinciding with a bullish divergence on the 14-day Relative Strength Index (RSI). This pattern suggests that bearish momentum is fading, and a hotter CPI print could signal the formation of a more meaningful bottom. On the upside, if the CPI beats expectations and drives a dollar rally, the first resistance level is the psychological 100.00 mark, followed by the 20-day moving average at 100.32. On the downside, if the data is soft and pressures the dollar, a break below 99.40 could quickly lead to the 99.00 round number. Additional support lies near the 200-day moving average at 99.16.

Societe Generale's Chief FX Strategist Kit Juckes stated on August 9 that the dollar could trade in a range over the summer but is relatively bullish heading into year-end, with the potential to rise about 4% from current levels before entering a longer-term decline. The strategist notes that the near-term neutrality is largely because rate market pricing already reflects expectations and is broadly aligned with real interest rate differentials. The expected relative strength late in the year would stem from the resilience of the US economy compared to other regions. However, over the longer term, slowing US growth and improving European economic conditions will gradually weigh on the dollar.

Mitsubishi UFJ Financial Group, in its latest Monthly FX Outlook, forecasts the dollar index rising to 100.86 by the end of Q3, then falling to 99.29 in Q4, followed by further declines to 97.74 in Q1 2027 and 96.19 in Q2 2027. Near-term support comes from the market still pricing in some probability of a Fed rate hike, recurring geopolitical tensions in the Middle East that boost energy prices and long-end yields, and the relative growth advantage of the US. The Japanese bank suggests that the Powell-led Fed appears hesitant to raise rates, and rising inflation expectations could instead push up term premiums, ultimately weakening the dollar. Once the window for a rate hike closes and inflation subsides, the dollar's depreciation would become more pronounced. The bank emphasizes that the current coexistence of high volatility and risk assets is unsustainable, identifying September to October as a potential key turning point.

In summary, Wednesday's CPI data will be the pivotal variable for determining the market's expectation of a September rate hike. With market pricing split roughly 50-50 and the Fed clearly divided, this report will test which faction is more consistent with economic reality. A hotter-than-expected reading would reignite rate hike expectations and help the dollar form a short-term bottom. A benign reading would solidify the case for a hold and could push the dollar below the 99.40 support level. Technically, the dollar index has found support at 99.40 twice and formed a bullish divergence with the RSI, signaling a potential bottom. Regardless of the outcome, this CPI report is set to trigger significant market volatility, especially in the absence of clear forward guidance from the Fed.

As of 10:33 a.m. Beijing time on August 12, the dollar index was trading at 99.85.