The size of crypto market cap is reported to be a total of 3.2 trillion of the present day (CoinMarketCap). Assuming it increases at the same rate as Bitcoin, 60 percent per annum, it might increase by approximately 9.5 times within five years. This trend is leading to a market size of between 36 trillion and 40 trillion by 2030. This is the proof of history. Throughout the years of 2020 to 2025, the market cap of Bitcoin significantly increased by 7 folds, reaching up to 1.2 trillion dollars. Ethereum was ahead of this trend, surging to $470 billion by the end of 2021, a 31X upsurge over the year.
Assume total crypto market cap grows at an annual rate of 60% like BTC has over the last 5 years, ~9.5X growth over 5 years, meaning we arrive at a $36T-$40T total crypto mcap in 2030.
Given BTC+ETH combined market caps dominate 68-70% total crypto mcap today, let’s assume the… https://t.co/jqkxBiVCnr
— DeFi Dad ⟠ defidad.eth (@DeFi_Dad) September 26, 2025
BTC and ETH Control Over Half of the Market
Both Bitcoins and Ethereums are presently controlling nearly half of the crypto market. The proportion of Bitcoin and Ethereum is 37.5 and 14.7 respectively (CoinMarketCap, September 2025). In some cases, it has reached almost 70% as their joint capacity (Statista, March 2025). They may still dominate half of the potential 40 trillion market even when dominance drops as low as 50 percent in 2030.
Ethereum’s Path to a $10 Trillion Market Cap
Ether is approximately 28 percent of BTC+ETH combine market cap today. Ethereium’s valuation will reach $10 trillion in case it reaches 25 percent of the overall crypto market cap in 2030. This will have a circulating supply of about 120 million ETH (Etherscan), which will project a price of approximately $83,000 per ETH. This is in line with what forecasers, such as @DeFi_Dad and @ryanberckmans, predict that the ETH may return 20X at its current price of 3,893.
Layer 2s Enhance Ethereum’s Deflationary Case
Current scaling solutions such as Arbitrum and Optimism now handle approximately a half of Ethereum transactions (L2Beat, 2025). These networks reduced the average cost to $1-5, which was more than 50 in the bull market of 2021 (Etherscan gas tracker). After the Ethereum EIP-1559 upgrade in 2021, 3.5 million ETH burned, which is worth $13.6 billion at present prices (Ultrasound.money). As Ethereum grows in terms of L2s capturing activity, it might experience inflation close to zero, or even become deflationary, which will increase its usefulness as a settlement layer.
Ethereum’s Share of Global Markets
Ethereium is projected to be worth 10 trillion dollars, which is approximately 7.9 percent of the total equity market cap worldwide estimated at 126.7 in 2024 (SIFMA). It is a structural change because Ethereum is now competing with Bitcoin to lure structured investment funds. By keeping the exposure within a period of five years, the prospects of ETH reaching the valuation of $10 trillion becomes achievable.Today, ETH comprises only 0.37 percent of equities, showing the extent of possible growth. This forecast is based on the ongoing use of DeFi, tokenization of RWA and the use of Ethereum as a base layer by thousands of applications.
