European stocks are seen opening higher on Tuesday following Wall Street's overnight rally, though caution lingers as investors await the next round of U.S.-Iran negotiations in Doha. U.S. President Donald Trump said the meeting would take place in the Qatari capital, but Iran's foreign ministry spokesperson stated no talks are scheduled, and Trump later clarified the U.S. delegation is traveling to Doha only to monitor implementation of the recently signed MoU. A top Iranian official reiterated the country's determination to maintain control over maritime traffic moving through the Strait of Hormuz even if Oman opts not to participate. Among key U.S. data due this week, the Conference Board's consumer confidence index will be out later today, followed by ADP's monthly private payrolls report and the Institute for Supply Management's manufacturing survey index on Wednesday. Asian markets were mixed despite China's official manufacturing PMI returning to expansion, while the Japanese yen fell to a 40-year low versus the dollar. Gold tumbled nearly 1 percent to hover around $3,980 an ounce, and Brent crude futures steadied above $73 a barrel. The Dow rose 0.6 percent to set a new record closing high above 52,000, the S&P 500 rallied 1.2 percent, and the tech-heavy Nasdaq Composite surged 2.1 percent. The pan European Stoxx 600 ended flat with a positive bias, while the German DAX, the U.K.'s FTSE 100, and France's CAC 40 all slid by 0.2 percent.