You’re reading a free article with opinions that may differ from The Motley Fool’s Premium Investing Services. Become a Motley Fool member today to get instant access to our top analyst recommendations, in-depth research, investing resources , and more. Learn More In afternoon trade, the S&P/ASX 200 Index (ASX: XJO) is on course to record a small gain. At the time of writing, the benchmark index is up 0.35% to 7,997.6 points. Four ASX shares that are rising more than most today are listed below. Here's why they are climbing: A2 Milk Company Ltd (ASX: A2M) The A2 Milk share…