I just realized that what Bitcoin Dominance (BTC.D) is actually is a fairly important concept that many people still don’t fully understand. Bitcoin Dominance (BTC.D) is, in essence, an indicator showing what percentage Bitcoin accounts for within the total market capitalization of the entire crypto market. The calculation is also simple—divide Bitcoin’s market cap by the total market capitalization of the entire cryptocurrency market.

In practice, when you track BTC.D, you’ll understand how strongly Bitcoin is influencing the market. When this indicator is high, it means Bitcoin is dominating and capital flows are concentrating on it. Conversely, when BTC.D declines, altcoins start pulling money away from Bitcoin—at that time, it could be an opportunity for other coins.

I often use BTC.D to predict how capital will move. If I see this indicator rising, I know that money is withdrawing from altcoins and moving back into Bitcoin. If it’s falling, it may be the time when altcoins start to have growth opportunities. This helps me decide on a reasonable way to allocate assets between Bitcoin and other coins.

But remember, what Bitcoin Dominance is only a tool among many other indicators. You shouldn’t rely on it alone to make decisions. Always look at the whole picture—macro market conditions, news, investor sentiment—then decide on your strategy.