A key indicator is (Bitcoin market share):
Market share is rising: funds flow into Bitcoin, the main coin sucks blood, and altcoins are trapped in a bear market.
Market share is declining: funds are flowing out of Bitcoin or into altcoins, signaling the start of an altcoin bull market.
Historical data validates this rule:
In March 2017, Bitcoin's market share fell from 80% to 30%, ushering in a bull market for altcoins.
In January 2021, the market share dropped from 70% to 40%, and altcoins surged again.
In December 2024, the current market share is 56%, having fallen below the ascending channel.
The last significant drop in market share was in January 2021, after which altcoins strongly emerged. After June 2023, the market share continued to rise until November 2024, when altcoin performance declined. Many investors were trapped, and now the market share has fallen below a key channel, indicating that a new round of altcoin season may be about to begin!$BTC