Bitcoin and cryptocurrency prices have rocketed through October, with the combined crypto market adding $1 trillion since its September lows.

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The bitcoin price clocked a new all-time high earlier this month, topping $67,000 per bitcoin. Meanwhile, ethereum, the second-largest cryptocurrency after bitcoin, has also recorded an all-time high this week, climbing to over $4,400 per ether.

Bitcoin’s rally, adding $20,000 to the price of just one bitcoin, has been put down to big bitcoin holders (known as whales) adding to their stacks—with crypto analysts finding supply shocks “have only grown stronger.”

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