The addition is a welcome Christmas gift for those who held Bitcoin (BTC) in Coinbase wallets on August 1 when the BCH fork occurred. Users who had BTC at the time of the fork have received an equal amount of BCH in the newly created wallets.
After previously refusing to support the coin, the company promised that BCH support would come before the end of the year.
The blog post also made clear that Coinbase employees have been restricted from trading BCH on the site for a number of weeks prior to the announcement. Nevertheless, accusations of insider trading have hit Twitter.
Source:https://cointelegraph.com/news/coinbase-adds-bitcoin-cash-as-price-soars-bitcoin-dips