Stock market today: Dow, S&P 500, Nasdaq rise ahead of Powell speech

US equities, including the Dow, S&P 500, and Nasdaq, surged following Federal Reserve Chair Jerome Powell's Jackson Hole speech, which opened the door for a September interest rate cut by noting a "shifting balance of risks" that may warrant policy adjustment. This significantly boosted market odds for a September cut to 91.5%, driving broad market gains and lower Treasury yields, despite Powell acknowledging persistent upside inflation risks from tariffs.

Analysis

US equity markets experienced a significant risk-on rally, with the Dow Jones, S&P 500, and Nasdaq gaining approximately 2.0%, 1.6%, and 1.9% respectively, driven by Federal Reserve Chair Jerome Powell's remarks at Jackson Hole. His statement acknowledging a "shifting balance of risks" that may warrant a policy adjustment was interpreted as a strong signal for a potential rate cut, causing the market-implied probability of a September reduction to surge from 70% to 91.5%. This dovish interpretation was corroborated by a decline in 10-year and 30-year Treasury yields and a rally in alternative risk assets like Bitcoin and Ethereum. However, Powell's commentary was not unequivocally dovish; he explicitly noted that inflation risks remain "tilted to the upside," citing visible price pressures from tariffs. This creates a nuanced outlook where monetary easing is likely but contingent on inflation not accelerating. The broad market rally also masked significant divergence at the single-stock level, with strong earnings reports boosting Zoom (ZM) and Ross Stores (ROST), while Intuit (INTU) and Workday (WDAY) declined, underscoring that company-specific fundamentals remain critical. The backdrop of escalating political pressure on the Fed from the White House adds a layer of non-economic risk to future policy decisions.

Key Decisions for Investors

• Given the Fed's dovish pivot and falling Treasury yields, investors should consider the valuation support for growth-oriented equities and other rate-sensitive assets, as the probability of a September rate cut is now overwhelmingly priced in.
• It is critical to monitor upcoming inflation data, as Powell's explicit warning about tariff-related price pressures represents the primary risk that could derail the central bank's path toward monetary easing.
• The divergent performance of individual stocks like ZM and ROST versus INTU and WDAY highlights the need for rigorous, bottom-up fundamental analysis, as macro tailwinds are not lifting all companies equally.
• The heightened political pressure on the Federal Reserve introduces an element of policy uncertainty, and investors should be aware of potential volatility stemming from any perceived threats to central bank independence.