Have you been paying attention to shares of BellRing Brands (BRBR) ? Shares have been on the move with the stock up 11.9% over the past month. The stock hit a new 52-week high of $74 in the previous session. BellRing Brands has gained 32.2% since the start of the year compared to the -1.7% move for the Zacks Medical sector and the 14.1% return for the Zacks Medical - Products industry.What's Driving the Outperformance?The stock has a great record of positive earnings surprises, as it hasn't missed our earni ...