Stock market today: Dow, S&P 500, Nasdaq slide to cap volatile week and month, metals sink after Trump taps Warsh for Fed

Market Overview - US stocks experienced a decline on Friday, with the S&P 500 and Nasdaq Composite falling by 0.4% and 0.9% respectively, while the Dow Jones Industrial Average dropped 0.4% [1] - Despite the volatility, the Dow and Nasdaq recorded their third consecutive losing weeks, while the S&P 500 managed a slight gain of 0.3% over the past five days [2] Federal Reserve Leadership - President Trump announced the nomination of Kevin Warsh as the next chair of the Federal Reserve, which has led to market speculation regarding interest rate policies [2] - Warsh has a hawkish record on interest rates but has recently shown support for cuts, aligning with Trump's campaign for lower rates [2] Currency and Commodities - The US dollar rose in anticipation of Warsh's leadership at the Fed, while gold prices fell below $5,000 and silver experienced a significant drop of up to 25%, marking its largest daily decline on record [3] Trade Policies - Trump threatened to impose a 50% tariff on Canadian aircraft imports and decertify new jets from companies like Bombardier, citing unfair certification practices [4] - New tariffs on countries supplying oil to Cuba were also promised, indicating a potential shift in trade relations with Mexico [4] Earnings Reports - Apple's shares rose following a quarterly profit that exceeded estimates, driven by record iPhone sales, although CEO Tim Cook warned of future margin impacts due to a global memory shortage [5] - Sandisk's shares increased by 5% after positive forward guidance, while Exxon and Chevron reported earnings that slightly beat estimates [6]