Shares of Cisco Systems Inc. /zigman2/quotes/209509471/composite CSCO +0.58% slid 1.1% in morning trading Wednesday, after Bank of America Merrill Lynch downgraded the networking company, citing a lack of expected catalysts in 2020. Analyst Tal Liani cut his rating to neutral from buy, and lowered his stock price target to $52 from $56. "We do not see a major catalyst for the stock in the coming quarters, and we see several headwinds that could continue to weigh on upcoming results," Liani wrote in a note to clients. "Challenges include 2-3 quarters of difficult [comparisons], slower potential growth for campus switching, secular pressure on routing and reduced share repurchase activity." Cisco's stock has gained 7.8% over the past 12 months, while the Dow Jones Industrial Average /zigman2/quotes/210598065/realtime DJIA -0.04% has advanced 20.3%. He also downgraded FireEye Inc. /zigman2/quotes/204730283/composite FEYE +3.31% and Palo Alto Networks Inc. /zigman2/quotes/207599953/composite PANW +3.67% to hold from buy, but upgraded CommScope Holding Co. Inc. /zigman2/quotes/206734450/composite COMM -0.54% to buy from neutral. Shares of FireEye slumped 3.4% and Palo Alto lost 1.9%, while CommScope rallied 5.4%.