Stock Market Today: Indexes End Lower to Begin New Trading Week as Oil Prices Rise; Memory Shares Outperform — Live Feedhttps://www.live-feeds.com/feed/stock-market-today-indexes-end-lower-to-begin-new-trading-week-as-oil-prices-rise-memory-shares-outperformContinuously updated, source-cited coverage. US Stock Market Indexes End Lower as Oil Prices Risehttps://www.live-feeds.com/feed/stock-market-today-indexes-end-lower-to-begin-new-trading-week-as-oil-prices-rise-memory-shares-outperformhttps://www.live-feeds.com/feed/stock-market-today-indexes-end-lower-to-begin-new-trading-week-as-oil-prices-rise-memory-shares-outperform#u44912Tue, 18 Aug 2026 16:15:20 +0000The US stock market began the new trading week with losses, as rising oil prices and concerns in the Middle East influenced investor sentiment. Futures were mixed ahead of retail earnings reports. The S&P 500 had previously posted a three-week win streak, but Dow, S&P 500, and Nasdaq futures wavered. Memory shares outperformed, while tech shares led advances in the previous week.Why it mattersThe stock market's performance is closely watched as it reflects the overall health of the economy. Rising oil prices and geopolitical tensions can impact market sentiment and influence tradi