Expectations for US monetary policy are undergoing a notable shift. Barclays has significantly revised its outlook on the US rate path, now forecasting 25 basis point hikes at both the September and December Federal Reserve meetings, for a cumulative 50 basis points of tightening. Previously, the institution expected the Fed to hold rates steady for the remainder of 2026. This move from a projection of inaction to two rate increases within the year highlights a clear change in the bank's assessment of inflation persistence and the risks associated with tighter monetary policy.

One of the key catalysts behind this shift is the hawkish signal recently delivered by Federal Reserve Chair Kevin Warsh. Speaking at the Jackson Hole Economic Policy Symposium, Warsh emphasized that while some recent US inflation figures have come in better than expected, they are not sufficient to prove that the underlying inflation trend has fundamentally changed. If policymakers cannot confirm that inflation is returning to the 2% target at a sufficiently fast pace, the Fed would still need to take further action. His remarks quickly altered market perceptions of the US rate trajectory. Investors had generally anticipated a shift toward a relatively accommodative phase as economic growth gradually slows, but Warsh's comments reasserted the importance of controlling inflation, prompting markets to reassess the likelihood that US rates will remain elevated for longer, with the possibility of additional hikes.

Barclays' adjustment of its annual rate hike expectations from zero to two is a significant indicator of the recent hawkish tilt in Fed policy expectations. For financial markets, the impact of this change extends beyond US rates themselves, potentially triggering knock-on effects on gold, foreign exchange, and commodity markets through shifts in the dollar, Treasury yields, and global capital flows. The dollar is one of the most direct beneficiaries. If markets increasingly accept the view that the Fed will embark on a new tightening cycle in September, the interest rate differential between the US and other major economies could widen again, enhancing the appeal of dollar-denominated assets. The US dollar index had previously rebounded to near 99.60 on the back of hawkish policy signals, and despite short-term pullbacks, the dollar retains the potential to challenge the 100 level as long as US economic data continues to justify the need for higher rates.

The Treasury market is also facing renewed pricing pressure. An expected rise in the Fed's policy rate typically pushes short-term yields higher first, and if markets further conclude that high-rate conditions may persist longer, medium and long-term yields could be affected as well. Higher risk-free rates raise the opportunity cost of holding dollar assets for global investors and could reshape the valuation logic for equities, gold, and other risk assets. Gold faces a more direct headwind. Since gold generates no interest income, rising US real rates and Treasury yields increase the relative opportunity cost of holding the metal. The precious metal's recent strength at elevated levels has been heavily supported by a weaker dollar, safe-haven demand, and expectations of future policy easing. Should the Fed re-enter a hiking cycle, gold could come under short-term valuation pressure. However, this does not necessarily mean its medium-to-long-term bullish narrative has completely reversed. Global geopolitical risks, fiscal deficits, central bank purchases, and concerns over the long-term stability of the monetary system could still provide crucial underlying support for gold. Therefore, even with a hawkish policy turn, gold is more likely to experience high-level volatility and periodic corrections rather than a simple, sustained downtrend.

Non-US currencies also need to watch for pressure from a resurgent dollar. The euro and the pound have recently been supported by policy expectations from their respective central banks, but if Fed hike expectations continue to heat up, rate differentials between the US and Europe, and the US and the UK, could tilt back in favor of the dollar. For the yen, higher US rates would widen the Japan-US yield gap, though expectations of further policy adjustments by the Bank of Japan may partially offset that effect. The impact on the oil market is relatively more complex. On one hand, additional Fed hikes imply higher financing costs, which could weigh on global economic growth and energy demand. On the other, international oil prices are currently supported by geopolitical tensions and supply risks, and if energy prices keep climbing, that could reignite US inflation, making it harder for the Fed to pivot quickly toward easing. The resulting cycle of rising oil prices, increasing inflationary pressure, and sustained high rates could become a major variable for financial markets in the coming months.

The real significance of Barclays' forecast revision is that markets are beginning to refocus on a risk that was previously downplayed: the Fed is not necessarily limited to a choice between cutting rates or holding them steady. Should inflation show renewed resilience, resuming hikes could also be a policy option. Still, it is important not to equate an institutional forecast directly with the Fed's ultimate decision. Ahead of the September policy meeting, US employment, wage, and inflation data will continue to shift market pricing. If the labor market remains resilient while core inflation lacks further downward momentum, Barclays' projection may gain broader market acceptance. Conversely, if employment cools noticeably and inflation continues to decline, expectations for two rate hikes could fade quickly. The US nonfarm payrolls report deserves particular attention. Whether the labor market shows significant deterioration will directly influence the Fed's judgment on the relationship between growth and inflation. If job creation remains solid and wage growth does not decelerate markedly, the Fed would have more policy room to maintain or even raise rates. If jobs data come in well below expectations, markets could pivot back to betting on an economic slowdown, posing a risk of revision to Barclays' hawkish outlook.

From a global market perspective, the key thing to watch is not the forecast itself, but whether more major financial institutions begin to simultaneously raise their Fed hike expectations. If this shift becomes a consensus, the dollar and Treasury yields could undergo a trend-based repricing. If it remains merely a tactical adjustment by a few institutions based on Warsh's remarks, the market impact may be limited to the short term. In summary, Barclays' move from projecting the Fed to hold rates steady for the year to predicting 25 basis point hikes in both September and December signals a clearly rising market risk of US monetary policy turning hawkish. Warsh's view that underlying inflation remains sticky is a key catalyst for this change. If future US employment and inflation data continue to show resilience, Fed hike expectations could intensify further, lending support to the dollar and Treasury yields while exerting periodic pressure on gold and some non-US currencies. Conversely, if the US economy cools markedly, markets could still revert to easing trades. The core question for markets ahead is not simply whether the Fed will hike, but whether US inflation and employment data can persistently support a higher rate path. Until that answer becomes clear, the dollar, gold, and major FX markets are likely to experience elevated volatility, and investors should be prepared for the risk of rapid asset price repricing driven by shifts in policy expectations.