The share of bitcoin reached a four -year -old maximum

The Bitcoin dominance index increased to 64.7%, which is the maximum value from the beginning of 2021, according to CoinmarketCap. This indicator is a kind of barometer of investors in cryptocurrencies. A decrease in the index indicates the increased interest of participants in altcoin. While growth means that capital flows are directed towards the main cryptocurrency, writes RBC Crypto.

Index indicators slightly vary depending on the site. For example, according to TradingView, the dominance index (ticker BTC.d) on June 22 exceeded 66%. The fact is that on TradingView the index is calculated based on 125 largest cryptocurrencies, while CoinmarketCap takes into account thousands of cryptoactives. There are also options for calculating the index, excluding stablecoins.

The Bitcoin dominance index, the share of bitcoin in the market, or the Bitcoin domination, is the ratio of the market capitalization of bitcoin to the market capitalization of the entire cryptocurrency market. Among the factors that affect this metric: a change in bitcoin price, altcoin assessment, growth in the use of stablecoins, market conditions, as well as the emergence of new cryptocurrencies. Altcoins are any other than bitcoin cryptocurrency. Many investors expect the same large -scale growth of such crypto assets as in 2017 and 2021, when almost all large cryptocurrencies overtook Bitcoin in growth for several months.

The local minimum of the index was reached at the end of 2022, when the share of bitcoin fell to 38%. Since then, the indicator has almost reliable with a small correction at the end of 2024 – when, against the backdrop of the victory of Donald Trump during the post of US president, the index dropped from about 60 to 54%. After that, the dominance of the main cryptocurrency continued to grow to current values.

Restoring dominance can reflect a trend where cryptocurrency is becoming more and more popular among traditional financial institutions, wrote in the analytical note The Block. And unlike the massive adoption of bitcoin, altcoins have not yet attracted the attention of institutional investors.

“The preference of shares associated with cryptocurrency probably contributed to a decrease in the level of interest in altcoins,” analysts write.

Traditional investors have access to only a few large shares associated with cryptocurrency, such as Circle (CRCL), Coinbase (Coin), Robinhood (Hood) and Strategy (MSTR), which, in turn, pointarily affects cryptocurrency.

“On the contrary, the altcoin market includes thousands of separate tokens, fragmenting potential investment flows on a wider universe of assets and blurring capital,” added analysts.

Replacing altcoins

The interest of institutional investors in altcoins can also be reduced due to the excitement around the companies buying cryptocurrencies. In 2025, a new trend was outlined: companies go to the exchange to form cryptocurrency reserves on the STRETEGY model Michael Saylor, and now not only bitcoins, but also altcoins are on the balance sheet. Most often, this leads to an increase in prices precisely on the shares of companies, and not to the altcoins themselves, which are added to the reserve.

The trend is increasingly noted by experts. The co-founder of Blockstream and one of the first participants in the Bitcoin community Adam Back said that “it is time to change altcoins to bitcoin or on the paper of companies that buy it.”

And the founder of the largest crypto -tank Binance, Chanpen Zhao, noted the colossal growth of shares of Nano Labs, which announced the Binance BNB strategy for the Binance Exchange in the Corporate Reserve. After the announcement of the plans, Zhao wrote in X that the Nano Labs shares “took off to heaven.”

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