On Monday, the bitcoin spot price BTCUSD, -9.91% BTCUSD, -9.91% was down 5.6% at $15,267.08, having hit around $17,135 on Saturday, according to CoinDesk.

Bitcoin futures for January BTCF8, -11.69% on the CME were changing hands at $15,425, a 7% drop from Friday’s settlement. On the CBOE, futures XBTF8, +12.21%  were changing hands at $15,470.

Meanwhile, ether coins on the Ethereum blockchain tapped a new all-time of $1,266.93 on Monday. It has since backed off to trade up 2.5% at $1,177, according to CoinDesk. Ether coins crossed a key psychological threshold above $1,000 for the first time ever last Thursday. Ether’s market cap of $118 billion is second only to Bitcoin’s $269 billion, according to CoinMarketcap.com.

Read: 7 cryptocurrencies to watch in 2018 if you’re on the hunt for the next bitcoin

The price of another cryptocurrency, Ripple coins, which surged 150% at one point last week, also continued to pull back. A single coin was changing hands at $2.56, a drop of 21% early Monday, according to CoinMarketcap.com. The research site also indicated a 8.1% drop to $15,669 for bitcoin.

Ripple’s climb last week was linked to speculation Coinbase could add the virtual coin to its offerings. Prices pulled back after the exchange said in a blog last Thursday that it had no plans to add new assets, and have continued to weaken.