Bitcoin fell below $84,000 on Wednesday as a jump in oil prices triggered by Iranian attacks on tankers weighed on risk appetite across global markets.
Brent crude rose almost 1% to about $101.50 a barrel after Iran picked up the pace of its attacks on tankers in recent days, according to CoinDesk. The dollar strengthened against every other Group-of-10 currency, and the 10-year Treasury yield climbed three basis points to 5.31%.
The move spread to equities. Asian stocks fell even after record closes for the S&P 500 and Nasdaq 100 on Wall Street, with MSCI's Asia Pacific gauge dropping 0.6% as tech shares in South Korea and Hong Kong turned lower. US stock futures reversed earlier gains.
Bitcoin was trading about $1,200 above the $83,000 low that brokerage FxPro said would confirm sellers are in control, with the firm seeing a break of that level opening a quick path to $80,000.
The selloff comes as traders digest the interest rate outlook. One analyst said the market had already priced in the latest hike, leaving investors focused on whether central bank communications "sound patient or still point to one more increase before the end of the year."