Here are Friday's biggest calls on Wall Street: Bank of America reiterates Amazon as buy Bank of America said it's standing by its buy rating on the stock. "Maintain Buy on Amazon. Three overhangs on stock have been retail margin cuts, AWS revenue deceleration, and potential TAM saturation. [Thursday's] letter set a positive framework for discussion of these on the 1Q call." UBS reiterates Netflix as neutral UBS said all eyes will be on the password sharing crackdown when Netflix reports earnings next week. "We expect 1Q to show continued progress toward re-accelerating growth. We believe subs will come in...