U.S. markets are trading broadly higher on September 21, with gains concentrated across the major large-cap benchmarks while small-cap equities remain under pressure. The latest snapshot shows Nasdaq leadership alongside gains in the S&P 500 and Dow, while movements across Canada, Brazil, and the U.S. dollar provide additional signals about the broader market environment.

Nasdaq Leads as Major U.S. Benchmarks Move Higher

The Nasdaq is leading the major U.S. equity benchmarks, gaining 0.78% to 26,728.49. The advance places technology-oriented and growth-sensitive equities at the forefront of the current session, extending the positive direction seen across several major U.S. indexes.

The S&P 500 also moved higher, gaining 0.56% to 7,693.08. The broader benchmark’s advance indicates that the session’s strength is not limited to the technology-heavy Nasdaq. The Dow 30 gained 0.43% to 51,906.67, providing additional evidence of positive performance among major U.S. companies.

The three major benchmarks are therefore moving in the same direction, although the magnitude of the gains differs. This creates a more synchronized equity-market picture than the divergence observed in some recent sessions.

Small Caps Remain the Main Area of Weakness

The Russell 2000 presents a notable exception to the broader advance, falling 0.50% to 2,860.40. The decline contrasts with gains in the Nasdaq, S&P 500, and Dow and highlights continued differences between smaller companies and larger publicly traded businesses.

The divergence is important for assessing market breadth. While the major large-cap benchmarks are gaining, small-cap equities are moving in the opposite direction. Because the Russell 2000 represents smaller companies, its performance can provide a different perspective on investor positioning and the relative strength of different market-capitalization segments.

With the U.S. market still open, the current figures remain subject to intraday changes. A widening or narrowing gap between large-cap indexes and the Russell 2000 could therefore become an important feature of the remainder of the session.

Americas Markets and Dollar Provide Additional Signals

Outside the United States, Brazil’s IBOVESPA gained 0.48% to 186,112.78, while Canada’s S&P/TSX Composite Index advanced 0.30% to 35,914.50. Both markets are moving higher alongside the major U.S. benchmarks, supporting a broadly positive equity-market picture across the Americas.

The U.S. Dollar Index also gained, rising 0.06% to 100.29. The move is relatively limited compared with the equity gains and leaves the dollar only modestly higher during the current session. Currency performance remains relevant for international investors because changes in the dollar can influence cross-border capital flows and the relative performance of global assets.

Overall, the current session is characterized by broad large-cap equity strength with selective weakness in small caps. Nasdaq leadership, gains in the S&P 500 and Dow, and advances in Canadian and Brazilian equities point to a constructive market backdrop, while the Russell 2000 remains an important area of divergence.

Looking ahead, investors will monitor whether the major U.S. benchmarks can maintain their gains through the remainder of the session and whether small-cap equities begin to participate more broadly. The Russell 2000’s performance will remain an important measure of market breadth, while the U.S. dollar and international equity markets could provide additional confirmation of broader positioning. Because the market is still open, changes in index leadership or a shift in small-cap participation could alter the current market picture before the close.