European equity markets are set to open lower on Tuesday, heading toward a fourth consecutive day of declines. This trend reflects losses across global equity markets, driven by ongoing concerns about the valuations of technology stocks. Market participants are keenly awaiting Nvidia's forthcoming Q3 earnings and guidance, which could offer valuable insights into the future of the artificial intelligence sector. Additionally, investors are looking forward to a series of US economic data releases, following the conclusion of the government shutdown, to discern future monetary policy directions. On the earnings report front, Siemens Energy and Imperial Brands are expected to disclose their financial results. No significant economic data releases are anticipated within the Eurozone today. In premarket activity, futures for the Euro Stoxx 50 and Stoxx 600 indices were both down by over 1%.