Bitcoin fell 0.7% to $77,581.7, retreating from intraday high $79,461.7, facing resistance near $80,000.
Gains were initially sparked by Axios report of Iran's proposal to reopen Strait of Hormuz, raising hopes for oil flow.
The Bitcoin Conference 2026 begins in Las Vegas, expected to draw tens of thousands and historically trigger heightened volatility.
Markets eye Fed decision Wednesday (potential final Powell‑led meeting) and BOJ meeting starting April 27 for rate guidance amid inflation risks.