European stocks are expected to open cautiously on Wednesday as investors await the U.S. Federal Reserve's interest-rate decision and seek clarity on the U.S.-Iran interim peace deal. The Fed is widely anticipated to keep rates unchanged, with attention focused on the policy statement, updated economic projections, and new Fed Chair Warsh's first press conference. Oil prices hovered near three-month lows, easing inflation concerns, while Bloomberg reported that Iran could access up to $300 billion in reconstruction funds under the agreement, which may unlock billions in frozen assets and allow immediate oil sales. Overnight, U.S. stocks ended mixed, with the Dow gaining 0.6 percent to a record close, while the Nasdaq fell 1.2 percent and the S&P 500 dropped 0.6 percent. European markets edged higher on Tuesday, with the pan-European STOXX 600 adding 0.3 percent.