Cryptocurrency Ethereum Classic (CRYPTO: ETC) is having a week to write home about. According to CoinMarketCap, Ethereum Classic is up 72% over the past seven days, and it's likely because of upcoming changes to Ethereum (more on that in a moment).

Interestingly, Bitcoin Gold (CRYPTO: BTG) is also up big over the past seven days: 47% as of this writing. But this Bitcoin alternative doesn't have a clear catalyst like Ethereum Classic.

This week's outsize moves from Ethereum Classic and Bitcoin Gold are interesting considering they're both hard forks -- of Ethereum and Bitcoin, respectively.

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Source Fool.com