US equity markets suffered a sharp selloff, with the Dow Jones Industrial Average falling approximately 1,100 points in its worst single-day decline since April 2025. The plunge was driven by mounting inflation concerns and a jump in oil prices, which intensified pressure on an already cautious market environment.

The broader market rout also weighed heavily on the S&P 500 and the Nasdaq Composite, both of which tumbled alongside the Dow. Investors reacted to the latest Federal Reserve policy decision, which underscored persistent inflationary pressures in the US economy. The Fed's stance reinforced expectations that interest rates would remain elevated for longer, dampening risk appetite across asset classes.

The bond market bore the brunt of the reaction. The yield on the benchmark US 10-year Treasury note returned to the 4.7% level following the Fed policy announcement. The more pronounced move was seen further out the curve, where the 30-year Treasury bond yield surged to 5.2% — its highest level since 2007, predating the era of unconventional monetary policy and near-zero rates that defined the post-2008 financial crisis period. The steepening of long-duration yields reflected investor concerns over the inflation outlook and the potential trajectory of monetary policy. Rising yields also increase the discount rate applied to future corporate earnings, a dynamic that tends to weigh most heavily on growth and technology stocks whose valuations depend on longer-dated cash flow expectations.

In currency and commodity markets, the US Dollar weakened, while Gold and Silver posted modest gains. The decline in the dollar and the uptick in precious metals were consistent with the inflation-driven narrative that dominated the session, as investors sought traditional stores of value amid rising price pressures. The oil price surge added another layer of concern, as energy costs feed through the economy as a key input for transportation, manufacturing, and logistics, reinforcing the very inflationary pressures the Fed is working to contain.

The sell-off came during a busy week for corporate earnings, with results from major technology companies including Microsoft and Meta Platforms in focus. As among the largest constituents in the S&P 500 by market capitalization, their outcomes carry outsized influence over index-level performance. The combination of hawkish central bank signals, rising energy costs, and elevated bond yields created a challenging backdrop for equities, contributing to the broad-based decline.