U.S. stocks saw a decline on Thursday, with the S&P 500 falling 0.4% from its previous all-time high, while the Dow Jones Industrial Average dropped 313 points (0.6%) and the Nasdaq composite slipped 0.1%. The declines were influenced by fluctuating oil prices, which settled at $100.06 per barrel, down 1.2% from earlier highs of over $115. This volatility is linked to ongoing discussions regarding the Iran war, as hopes for a resolution have caused sharp swings in oil prices. Additionally, the Iranian government has initiated measures to tax vessels passing through the Strait of Hormuz, which could further increase fuel costs. Despite these uncertainties, strong corporate earnings have provided some support to the market. Companies like Datadog and Axon Enterprise reported better-than-expected results, with Datadog's stock soaring 31.3%. Conversely, companies like Whirlpool and Shake Shack saw significant declines after disappointing earnings. In the bond market, the yield on the 10-year Treasury rose to 4.38%, which may lead to higher borrowing costs for consumers and businesses, potentially slowing economic growth.