European equity markets were poised to open lower on Tuesday, on track for a fourth consecutive session of declines, mirroring losses across global equities amid persistent concerns over tech valuations. Market attention is focused on Nvidia’s upcoming Q3 earnings and guidance, which could provide insights into the broader artificial intelligence industry’s prospects. Investors are also awaiting a stream of US economic data following the end of the government shutdown for further clues on the monetary policy outlook. On the earnings front, reports are expected from Siemens Energy and Imperial Brands. There are no major economic data releases in the bloc today. In premarket trading, Euro Stoxx 50 and Stoxx 600 futures were both down more than 1%.