Now everyone knows that the altcoin season has arrived, but no one actually tells you how to determine if it has really come!

The key indicator for the altcoin market rally is the market share of BTC.

Increase in market share: Indicates that funds are flowing into BTC, and everyone is chasing Bitcoin, while altcoins continue to bear market.

Decrease in market share: Funds are flowing out of BTC and into altcoins, which indicates that altcoins have entered a bull market.

Looking back at history:

In March 2017, BTC's market share dropped from 80% to 30%, and the altcoin bull market erupted.

In January 2021, the market share fell from 70% to 40%, and the altcoin bull market started again.

Now it is December 2024, and the market share has already dropped to 56%, falling below the rising channel.

The last significant drop in market share was in January 2021, after which altcoins began to rise strongly, until June 2023, when the market share broke through and continued to rise.

Recently, the market share has been continuously declining, with almost all altcoins making new lows, and retail investors are also feeling the pressure with their holdings. Now, the market share has once again fallen below the rising channel, and a new altcoin season has already begun!