Dow, S&P 500, and Nasdaq Set for Volatile Monday Amid Inflation Concerns

The US stock market is heading into Monday, September 21, with a mixed finish to Friday's session still fresh in investors' minds. The Dow Jones Industrial Average closed at 51,682.64 on Friday, falling 0.18% during the session. Meanwhile, the S&P 500 finished at 7,650.50, gaining 0.17%, and the Nasdaq Composite ended at 26,522.55, up 0.39%. Oil prices remain a key factor to watch, with crude trading above $100 a barrel keeping inflation concerns in focus. A sustained decline in oil prices could ease some of those concerns.

The latest Federal Reserve interest-rate decision has kept monetary policy at the center of market discussions. Investors will be looking for additional economic data and Fed commentary that could provide clues about future rate decisions. The benchmark 10-year Treasury yield recently moved toward the 5% level, increasing investor attention on borrowing costs.

The S&P 500's performance on Monday could depend on changes in bond yields, oil prices, and expectations surrounding future Federal Reserve policy. Technology shares remain an important driver of Nasdaq trading, but elevated Treasury yields can affect the valuation of growth-oriented stocks. Investors will therefore be watching energy markets closely before and during Monday's session.