US CPI: A Crucial Test for the Fed

US CPI: A Crucial Test for the Fed

Gold, oil and the Nasdaq await May inflation data as markets reassess rates, yields and risk.

The most closely watched macroeconomic release of the week comes today from the United States. At 8:30 a.m. ET, 2:30 p.m. in Italy, the Bureau of Labor Statistics will publish the May Consumer Price Index update, a release set to influence not only expectations for Federal Reserve policy, but also the behavior of some of the asset classes most sensitive to the mix of inflation, the dollar, real yields and geopolitical risk: gold, oil and the Nasdaq.

The starting point is already complex. US inflation has started to rise again in recent months, mainly driven by higher energy and gasoline prices, in a context further complicated by tensions in the Middle East and risks surrounding the security of oil routes. After the 3.8% annual reading recorded in April, consensus estimates point to an acceleration in headline CPI to 4.2% in May, with a monthly increase of 0.5%. Core CPI, which excludes food and energy and is therefore more relevant for assessing the persistence of underlying inflation, is expected at 2.9% year-on-year and 0.3% month-on-month.

The real issue for markets will not be the headline figure alone. A higher overall CPI reading may be interpreted as a temporary effect of energy, especially if it is driven by gasoline and fuel prices. A core CPI reading above expectations, however, would send a more dangerous signal: the transmission of the energy shock to the broader price basket, including services, transportation, goods and potentially inflation expectations. This is the point that could alter the perceived trajectory of the Federal Reserve.

The next Fed policy meeting is scheduled for June 16-17. At present, economists’ consensus does not expect any rate cuts at the June meeting. On the contrary, most analysts expect the federal funds rate to remain unchanged in the current 3.50%-3.75% range for the rest of 2026. The question is no longer when the rate-cutting cycle will begin, but whether the Fed will be forced to keep a more restrictive stance for longer or, in the most uncomfortable scenario, reopen the door to further hikes if inflation proves persistent.

For the Nasdaq, today’s data is particularly delicate. The technology index is the equity market segment most sensitive to real rates and monetary policy expectations, because a large part of its valuations reflects earnings expected far into the future. Higher yields reduce the present value of those cash flows and put pressure on multiples, especially across growth stocks, semiconductors and artificial intelligence-related names. A CPI reading above expectations, particularly in the core component, could therefore trigger another phase of multiple compression, with sharper volatility on the Nasdaq than on more defensive indices.

The opposite scenario, namely a CPI reading below consensus or a softer core figure than the expected 0.3% monthly increase, would give equity markets a reason to reduce the probability of a more aggressive Fed. In that case, the Nasdaq could benefit from immediate relief, especially if the data were accompanied by a decline in Treasury yields and a weaker dollar. However, the scale of any rebound would also depend on investor positioning and the resilience of sentiment toward the technology sector, which is already burdened by elevated valuations and profit-taking in AI-related stocks.

Gold is facing a more contradictory dynamic. In theory, higher inflation should support the precious metal as a safe-haven asset and a hedge against the loss of purchasing power. In practice, however, when inflation fuels expectations of higher interest rates, the effect can become negative: gold does not offer a yield and tends to suffer from rising real rates and a stronger dollar. For this reason, a CPI reading above expectations could initially weigh on gold, unless the geopolitical component becomes dominant again and pushes investors toward defensive assets.

If the data were weaker than expected, the outlook for gold would become more constructive. Lower yields and reduced pressure on the Fed would decrease the opportunity cost of holding gold, supporting a rebound after its recent weakness. The key point will be whether markets interpret the data as a temporary peak in inflation or as the beginning of a more stable easing of price pressures.

Oil, finally, remains the asset most directly linked to the energy component of inflation. Brent is trading above the $90 per barrel area, supported by the geopolitical premium linked to tensions between the United States, Israel and Iran, but held back by less encouraging signals on Chinese demand. Here, the impact of CPI is indirect but important: a high reading driven by energy would confirm that oil is already transmitting pressure to the real economy; a high reading also in the core component would instead suggest a risk of second-round effects, with possible consequences for monetary policy.

For crude oil, the scenarios are therefore less linear. A very hot CPI reading could temporarily support prices through the energy-risk channel, while at the same time increasing fears of tighter monetary policy and weaker future demand. A lower CPI reading, by contrast, would ease inflationary pressure and reduce Fed-related risks, but could also indicate a more limited pass-through from energy prices, removing part of the macro premium from the sector.

In summary, markets are focused on three possible scenarios. The first is an in-line reading: CPI at 4.2% and core CPI at 2.9%. In this case, the Fed would remain in wait-and-see mode, but with a cautious tone, and markets could continue to experience elevated volatility without an immediately decisive direction. The second is a below-consensus reading: this would be the most favorable scenario for both the Nasdaq and gold, as it would reduce pressure on yields and rate-hike expectations. The third is an above-consensus reading, especially in the core component: this would be the most negative scenario for the Nasdaq and potentially also for gold, while oil could experience two-sided volatility, caught between geopolitical premium and fears of economic slowdown.

Today’s data will not determine US monetary policy on its own, but it comes just days before a particularly important Fed meeting. After months in which markets debated the possibility of rate cuts, the center of gravity has shifted toward a more restrictive message: rates staying higher for longer, inflation still above target and a central bank forced to defend the credibility of its mandate. For gold, oil and the Nasdaq, May CPI could be the catalyst capable of turning this waiting phase into a decisive market move.