US stock markets extended their losses on Tuesday, with Wall Street moving further away from record highs as technology stocks lost momentum and investors remained cautious on rising bond yields, oil price volatility and geopolitical uncertainty.The S&P 500 fell 0.5 percent and is headed for its third consecutive decline after recently hitting a record high. The Dow Jones Industrial Average fell 397 points, or 0.8 percent, in early trading, while the Nasdaq Composite fell 0.6 percent, the AP reported.Markets remained mixed at the global level as well. South Korea’s Kospi fell 3.3 percent, while Germany’s DAX rose nearly 1 percent as weakness in technology shares weighed on sentiment.Technology stocks, which had driven the market higher on optimism around artificial intelligence, showed signs of losing momentum after a sharp rally that had sparked concerns over stretched valuations.Investors are now keeping a close eye on chipmaker Nvidia, which is scheduled to report quarterly earnings on Wednesday. The company’s results are expected to play a key role in determining whether technology stocks can sustain their broader rally.Nvidia shares fell 0.7 percent.“Every flow has its own ups and downs,” Barclays Capital’s Rex Feng, Venu Krishna and other strategists wrote in a report.He said investors were pouring money into US stock funds at a rapid pace, leading to the “fastest rebound in decades”; Now the pendulum can swing backwards.Among individual stocks, Akamai Technologies fell 3.9 percent after the cybersecurity and cloud services company announced plans to raise $2.6 billion through a convertible note offering.Home Depot declined 2.2 percent despite reporting quarterly earnings that beat analysts’ expectations. However, sales growth at stores that have been open for more than a year fell short of some estimates.CEO Ted Decker said Home Depot saw demand trends similar to last year “despite greater consumer uncertainty and housing affordability pressures.”Meanwhile, bond yields continued to rise. The yield on the benchmark 10-year US Treasury rose to 4.66 percent from 4.61 percent on Monday and remained well above levels seen before the Iran conflict.Oil prices eased slightly after recent sharp moves. Brent crude fell 0.7 percent to $111.39 a barrel, although prices have remained largely above $100 since the start of the Iran conflict.According to AAA, the average U.S. gasoline price rose again to $4.53 a gallon, up nearly 43 percent from the same period last year.