Coinbase, one of the biggest bitcoin marketplaces in the U.S., said Friday that trading was up again after being down for more than two hours amid a price rout in cryptocurrencies.
"Buys and sells have been re-enabled. We are monitoring for stability," Coinbase said on its status website as of 1:44 p.m., ET.
Earlier, the company said that buying and selling was temporarily disabled and that the service "may be temporarily offline" due to high traffic.
Coinbase's GDAX exchange for institutional investors saw about $1 billion in bitcoin-U.S. dollar trading volume over the last 24 hours, according to CryptoCompare. Only Hong Kong-based Bitfinex had greater trading volume for the currency pair at around $2 billion, the website showed.
Coinbase, whose mobile app is one of the most popular overall applications in the Apple App store this month, is a leading way in the U.S. to buy and sell major digital currencies bitcoin, ethereum and litecoin. The company added trading for bitcoin's offshoot bitcoin cash in a rocky rollout this week.
On Thursday, Coinbase had temporarily disabled trading at 5:57 p.m. ET, according to its status website. The issue was resolved within 15 minutes.
Coinbase has struggled in recent months to keep up with high demand. On Dec. 12, the company temporarily suspended buys and sells of ethereum twice in one day.