Analyzing ETH Price Moves During BTC Market Cycles

April 2021, BTC down – ETH sideway

May 2021, BTC recovered – ETH up from 2k to 4k$

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Dec 2017, BTC down – ETH sideway

Jan 2018, BTC recovered – ETH up from 600 to 1k2

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August 2025, BTC down – ETH sideway

Sep Oct 2025 ETH 8k