Shares of Premier Protein-branded snacks maker BellRing Brands Inc. /zigman2/quotes/214579114/composite BRBR -10.20% surged 3.7% toward fresh highs in morning trading Monday, after a host of Wall Street analysts started coverage of the recent IPO will bullish ratings. Of the 8 analysts surveyed by FactSet, 7 set ratings at the equivalent of buy and 1 had a rating of the equivalent hold. Analyst Ken Goldman at J.P. Morgan started BellRing at overweight with a $21 stock price target. "Though we appreciate the risks in the story--especially the product and customer concentration--we think these are more than offset by strength in BellRing's category and the distribution opportunity ahead for the flagship Premier Protein brand," Goldman wrote. Stifel Nicolaus's Christopher Growe initiated BellRing with a buy rating and $21 price target, saying BellRing's initial public offering has allowed investors to participate in the fast-growing convenient nutrition category with one of the leading brands. Bill Chappell at SunTrust Robinson Humphrey was the lone non-bull, starting BellRing at hold with $20 price target, citing "reservations" about the channel concentration of the business and the higher-than-peer average leverage. The stock has gained 15% since closing its first day of trading (Oct. 17) at $16.50, which was 18% above the $14 IPO price. Over the same time, the Renaissance IPO ETF /zigman2/quotes/207665280/composite IPO -0.39% has tacked on 2.1% and the S&P 500 /zigman2/quotes/210599714/realtime SPX -0.16% has advanced 2.8%.