One of the "dips" Bukele said El Salvador bought was 420 coins for more than $59,000 each in late October, a total of almost $25 million that is now worth $9.5 million.
The government didn't respond to a request for comment on the value of its bitcoin portfolio.
The amounts, both the investment and the loss, are only a fraction of the $3.65 billion that the Central America nation held in foreign exchange reserves as of last month, according to credit rating agency DBRS Morningstar.
The country has $7.65 billion in marketable debt outstanding according to Refinitiv data. An $800 million payment is due in January, on a bond that is trading at 73.5 cents on the dollar and yielding 67.6%.