Bitcoin, Ethereum… Why the Price of Cryptocurrencies has Fallen in Recent Days
The price of cryptocurrencies has fallen sharply since the 7th October 2025. A decline which is partly linked to a chain reaction on the Bitcoin market.
1929, 1987… Historically, October is often the month of stock market crashes. In October 2025, cryptocurrencies, these digital assets issued independently of traditional financial players, have just experienced this.
Certainly last October 5, bitcoin, the most popular cryptocurrency, has reached a historic record, surpassing the $125,000 mark. But since then, as the graph below shows, its value has plummeted, returning to around $105,000, its level observed at the beginning of the summer.
The price of other major cryptocurrencies has fallen in similar proportions. Ethereum, the second largest cryptocurrency, saw its price rise from $4,686 on the 7th October to $3,218 on the 17th October. Between these two dates, the value of the BNB increased from 1304 to 1047 dollars, while that of the Solana increased from 222 to around 177 dollars. If some more confidential cryptocurrencies escaped the crash, the stampede is as severe as it is widespread.
A self-sustaining decline
According to Valentine Demaison, of Mon Petit Placement, this drop is due “to a self-fulfilling movement: a decline that led to its own decline. Ithere was a small downturn and then investors said to themselves: “Ah it’s going down, so if it goes down, I have to sell!” ⁇ Sales, partly automated, which therefore accelerated the fall in prices launched by the initial movement.
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What is the latter due to? “Some say it is a decline against a backdrop of geopolitical tensions”, explains Valentine Demaison. Some players mention in particular the impact of Donald Trump’s declarations on possible new customs duties on Chinese products, which would have once again destabilized the global economy and pushed certain investors to abandon risky assets like Bitcoin.
Others raise doubts about the future decision of the American Federal Reserve regarding its interest rates which, by modifying the profitability of safe assets such as American Treasury bonds, has a significant impact on less safe products. “But, in reality, no one knows” which is really the cause of the crash this October, explains Valentine Demaison.
Manipulation
We just know that this initial movement is unlikely to be the work of a small carrier. “In the cryptocurrency market, downward or upward movements are often linked to large players”, notes Valentine Demaison.
The impact that the latter have is all the more significant as the cryptocurrency market is very poorly regulated and therefore allows the birth of “gigantic flows”, to buy or sell. And ultimately, the victims of these major downward movements are small investors whose limited portfolios are subject to the movements initiated by large investors.
Other cryptocurrencies dragged down
Bitcoin has dragged down most other major cryptocurrencies. Firstly, through a contagion effect, the debacle of the largest cryptocurrency largely undermining the confidence that investors can have in other assets of this type. Furthermore, certain cryptocurrencies are in a way derivatives of Bitcoin, which does not could only amplify the fall in their price. Fall from which no one knows when or how it will be stopped.
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