Bitcoin slumped 10% to a 10-day low before paring some of its losses Thursday as traders feared tighter U.S. regulations.
The world's most popular cryptocurrency Bitcoin was last down 10.6% at $31,724. It has lost about 27% of its value after touching a record $42,000 on Jan. 8.
The pullback comes amid growing concerns that bitcoin is one of a number of financial market price bubbles.
Fears that U.S. President Joe Biden's administration could attempt to regulate cryptocurrencies have also weighed on sentiment, traders said.
During a Senate hearing on Tuesday Janet Yellen, Biden's pick to head the U.S. Treasury, expressed