The cryptocurrency market can change direction in a matter of hours. One day, investors may be watching Bitcoin climb steadily while smaller digital assets remain quiet. The next day, capital can move rapidly into alternative cryptocurrencies, pushing the overall market higher.

For anyone trying to understand these movements, looking at individual coins is only part of the picture. The broader market provides a useful perspective because it shows whether growth is concentrated in a few major assets or spreading across the industry. That is where a crypto market cap chart becomes useful. Instead of focusing on the price of one cryptocurrency, it helps investors observe the combined value of the digital-asset market and understand how that…