I started mining ETC past few weeks after the spike in profitability over ETH. I know 51% attacks are still a risk and the 2 week delay for transferring to coinbase is a pain but I’m willing to take that risk.

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I noticed that whattomine is using a different price for ETC then coinbase, coinmarketcap is showing the ETC price.The difference is about $1 usd which is pretty significant for mining profitability. Meaning ETC profitability is about 20% higher then whattomines calculation if you sell ETC on coinbase.

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Any idea why are there different prices? Just the delay to coinbase makes coinbase ETC worth more?

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EDIT: To clarify WhatToMine has ETC listed at $5.17 per USD and some exchange do as well while Coinbase has ETC priced at $6.20 per ETC.