The U.S. Dollar Index (DXY) reached 102.5 on Monday, its highest level in nearly 18 months. This strength is underpinned by the Federal Reserve's September rate hike and further tightening expectations, alongside euro weakness. The euro has fallen to a 17-month low of 1.12 against the dollar, driven by fiscal concerns in France and political uncertainty in Spain. Despite these headwinds, Bitcoin continues to hold firm around $86,000.