The notoriously volatile cryptocurrency bitcoin has fallen to its lowest price this month after rallying in the first week of November and then crashing by more than $1,000 on Thursday and Friday.

The price of a single bitcoin is down 4.53 per cent at $6,272.24, according to Coindesk's aggregate index, a level it hasn't reached since the end of October.

Bitcoin surged to an all-time high of almost $7,900 on Wednesday, before dropping by more than $1,000 in 48 hours.

The surge was prompted by the suspension of a software upgrade that could have split bitcoin into what's called a "fork".

The most recent slump came as some traders dumped it for a clone called bitcoin cash, which has seen its value soar in the last few days: it's price is now up by 54 per cent to $1,247.