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Compared with BTC mining, ETH mining has a higher return volatility. This is mainly caused by two reasons, one is the large fluctuation of fee income, the other is the fluctuation of currency price.
ETH mining revenue mainly consists of two parts: fee income and block reward. The DeFi liquidity mining boom in July and August this year saw ETH's fee income grow rapidly, and an airdrop by the decentralized exchange Uniswap on September 17 saw fee income of 42,763 ethereum that day.
As a representative of blockchain 2.0, ETH, the underlying public chain, has attracted a large number of developers and users. Every once in a while, there will be new gameplay and innovative things, from crypto cat, FOMO 3D to the current liquidity mining. Every time a new gameplay appears, ETH network will be congested, and the whole network commission fee will quickly rise. After the congestion is always the benefit of the SILENT ETH miners who have made a fortune.
In contrast, ETH's block reward is stable. The Block reward was originally 5 ethereum, the October 2017 Byzantine upgrade reduced the block reward from 5 ethereum to 3 ethereum, and the March 2019 Constantinople upgrade reduced the block reward from 3 ethereum to the current 2 ethereum
In addition to the fixed 2 ethereum bonus per block, if the block references a tertiary block, the miner who produced the block and the miner who created the tertiary block receive additional rewards.
The average time for creating a block of ETH is about 13 seconds. After mining a block, miners need to broadcast the block to the whole network. The broadcast process takes time. Due to the short block generation time, ETH has a high chance of temporary bifurcation. In order not to discourage miners from mining, the ETH system stipulates that blocks that are not on the longest chain but are referenced by the latest six or less blocks on the longest chain, called tertiary blocks, can also be rewarded.