Coinbase is undoubtedly one of the largest and most well known cryptocurrency exchange sites in the world, and there has been major increases in coin prices after being listed on the exchange. This is known by some as the Coinbase effect. The recent three coins that have been added to Coinbase are MATIC, SKL and SUSHI and since the announcement of them being added to Coinbase there has been a massive rise in their trading volume. This could show a bright future for these coins and may be a reason to consider investing in them as well.