BOOORING. Those two companies shouldn't even be compared. I love A2 and I hold it myself. It's better than WHA is almost every sense. But that's why it cost almost 50 x the price.
WHA just peaked at 20% off something that as far as I'm concerned is a rubbish announcement. Meanwhile A2 posts the most amazing sales but it's not enough for their investors and it's lucky to move 2%. It's achievements are already factored into it's price. That stock is going nowhere for a while. It is merely a sensible safe option. Relative to their cost - I think WHA is a good buy.
If WHA just went 20% from this announcement. CFDA is going to pop the cap. WHA presents big opportunity. A2 has already had it's run. If you wanna go safe. Just put in a stop loss at $0.95. CFDA will bring the SP to $1.70+. The risk reward seems logical to me.