U.S. equities are showing strong upward momentum in midday trading on Monday, September 15, 2025, as investors eagerly anticipate a widely expected interest rate cut from the Federal Reserve later this week. The positive sentiment is driving major indexes higher, with the S&P 500 (SPX) eyeing a new all-time high, building on last week's record-breaking rally.As of midday, the S&P 500 (SPX) has climbed 0.4%, positioning it to surpass its recent peak set last week. The Nasdaq Composite (IXIC), heavily weighte ...