As previously reported, BTIG analyst Mark Palmer downgraded Square (SQ) to Sell from Neutral, as he believes the stock's valuation reflects "emphatic and unimpeded growth" but fails to factor in the risks facing the company from increasing competition from First Data's (FDC) Clover, Vantiv (VNTV) and others. Other concerns, such as macroeconomic and credit-related risks, "did not go away when some investors suddenly viewed its shares as a play on a trendy cryptocurrency" following the company's confirmation that it is testing allowing users to buy and sell bitcoin using its app, Palmer tells investors. He has a $30 price target on Square shares, which closed Friday at $48.86.