Major stock markets mixed after US debt ceiling agreement; tech companies gain ahead of Nvidia's AI announcements

European stock markets stabilized with reduced trading volumes due to UK and US holidays.
US futures indicate a slight increase after provisional agreement to raise debt ceiling, but approval from Congress is still needed.
European stock markets closed slightly lower on Monday while London and New York stock markets were closed for holidays.
New York Stock Exchange opened with mixed results on Tuesday as tech companies saw gains following Nvidia's announcement on AI products and partnerships..
Agreement on the US debt ceiling suspension until January 2025 has been reached between the White House and Republicans decreasing the risk of a short-term default.