S&P 500 fluctuates today amid uncertainty at the Fed and Wall Street reacting to Trump.

• Uncertainty at the Fed is putting pressure on the Dow, S&P 500, and Nasdaq.
• Banks support the market in a volatile week.
• Technology reacts to US-Taiwan agreement.

U.S. stocks gave back some of the gains made earlier on Friday amid uncertainty about the future leadership of the Federal Reserve. Positive performance from banks and corporate news related to technology helped limit broader losses, but were not enough to provide a clear direction for the market.

The Nasdaq Composite, heavily concentrated in technology companies, initially traded higher but then retreated and began fluctuating near stability. The S&P 500 advanced about 0,1%, while the Dow Jones Industrial Average also posted a slight increase, interrupting a recent losing streak.

The change in mood occurred after US President Donald Trump signaled hesitation in nominating Kevin Hassett as the next Fed chairman. This stance fueled speculation that the central bank might adopt a less cautious tone when Jerome Powell leaves office in May. During a White House event, Trump declared, "Actually, I want you to stay where you are if you want to know the truth," addressing Hassett.

Wall Street ended the week amid a combination of external factors that amplified volatility. Geopolitical tensions involving Iran, diplomatic debates over Greenland, and a criminal investigation that reignited discussions about the independence of the Federal Reserve contributed to more defensive investor behavior. The market is still preparing for a long holiday weekend, with stock exchanges and bond markets closed on Monday for Martin Luther King Jr. Day.