The S&P increased by more than 0.6% on Monday afternoon to a record intraday high of 6,336, while the Nasdaq rose up to nearly 0.8% to an intraday record of 21,077 before both indexes pared gains back slightly.

Standard and Poor's 500 and Nasdaq Composite 500 -- ended trading Monday with record highs as companies release earnings this week, though investors brace for U.S. tariff increases. The S&P 500 hit a high of 6,

The S&P 500 and the Nasdaq notched record high closes on Monday, lifted by Alphabet and other megacaps ahead of several earnings reports this week, while investors bet on potential trade deals to blunt economic damage from the Trump administration's global tariffs.