Representation of cryptocurrency Bitcoin is placed on PC motherboard in this illustration taken.
HONG KONG Reuters - Bitcoin fell slightly in Asian hours on Thursday, a day after marking an all-time high on optimism around the launch of the first U.S. bitcoin futures ETF.
The world's largest cryptocurrency was last down 1.3% at $65,184 after hitting a record $67,016 on Wednesday, but still above a previous peak of $64,895 seen in April.
We think its going to go higher and we can get to 80 or 90,000 by the end of this year easy, but that won't be without volatility, said Matt Dibb, COO of Singapore-based Stack Funds.
He added that he anticipated traders would rotate out of bitcoin and into other altcoins - major cryptocurrencies.
Ether, the world's second largest cryptocurrency, rose 1% to $4,203 and there were also sharper gains in smaller tokens.
Market players say the latest wave of buying has been supported by the launch of the first U.S. bitcoin futures-based exchange-traded fund ETF with investors betting this will open a path to greater investment from both retail and institutional investors.
Existing bitcoin exchange-traded funds and products have seen sharp inflows since September.
Average weekly flows to bitcoin funds totalled $121.1 million in October, up from $31.2 million a month earlier, data from London-based CryptoCompare shows.
The three months prior to September had seen outflows following steep losses for bitcoin in May and June.