Binance and Coinbase collectively experienced US$4bn in outflows between Monday and Thursday last week.
Data from blockchain analytics companies Nansen and Glassnode said Binance, Binance.US and Coinbase saw a net outflow of US$3.1bn through the Ethereum network and US$864mln in Bitcoin.
Despite regulatory difficulties, the exchanges were able to process the mass withdrawals promptly with no delays reported so far.
The increase in outflow occurred after the US Securities and Exchange Commission (SEC) charged the two platforms.
Binance and its US branch, Binance.US, were sued on Monday before the SEC threw the book at Coinbase on Tuesday.
Last Friday, Binance said it was suspending US dollar deposits and warned that banking partners will pause fiat dollar withdrawal channels around June 13.
In the most recent development, Nigeria’s markets regulator has ordered the world’s largest cryptocurrency exchange to halt its illegal operations in the country.