Wall Street anticipates losses on Monday due to escalating tensions in the Russia-Ukraine conflict and increased oil prices following OPEC+'s output decision. Futures for major indices show declines. Oil prices surged, benefiting energy stocks. Steel stocks jumped after President Trump announced doubled tariffs on steel and aluminum imports. UnitedHealth Group's annual meeting begins amidst CEO departure and financial outlook suspension. Asian markets experienced mixed results, with Hong Kong's Hang Seng falling slightly amid US-China trade tensions. European markets also showed mixed performance.