Bitcoin and Ethereum: A Tale of Two Cryptocurrencies

Bitcoin and Ethereum are two of the largest cryptocurrencies, and investors often compare them when deciding where to allocate their funds. However, the two assets have different purposes and characteristics, which can impact their valuation.

Bitcoin is a payment and store-of-value network with a limited supply, while Ethereum is a platform for running programs and managing outside capital. Bitcoin's scarcity is built into its protocol, whereas Ethereum's scarcity is dependent on its usage.

The supply of Bitcoin is capped at 21 million units, with around 20.09 million already in circulation. The annual growth of the money supply is in the low single-digit percentage range and continues to fall. In contrast, Ethereum has no fixed ceiling, and new units arise as a reward for validators, with around 0.85% growth at an annualized pace.

Ethereum's usage is measured by the capital tied up in its applications, known as the total value locked (TVL). As of October 2, 2026, around $96.8 billion was tied up in DeFi applications, with Ethereum accounting for around 56% of that figure. However, it's worth noting that some of this growth is due to Ethereum extensions, which can affect the accuracy of the figure.

Market capitalization and dominance also favor Bitcoin, with a market capitalization of around $1.742 trillion and a dominance of around 56.5%. Ethereum's market capitalization is around $336 billion, and it has given up more ground in this market phase.

Finally, staking is only available on Ethereum, which pays a running yield to validators. However, this yield is not fixed and can vary depending on the network's usage.