Cryptocurrency stocks like MicroStrategy (NASDAQ: MSTR), Coinbase Global (NASDAQ: COIN), and Riot Blockchain (NASDAQ: RIOT) all pulled back during the past week. As of the market close on Thursday, these stocks were down 14%, 12%, and 14%, respectively, for the week. By comparison, the S&P 500 was flat during this time. The price of Bitcoin (CRYPTO: BTC) was also flat, whereas Ethereum (CRYPTO: ETH) was only down 6%.