Continuous Disclosure: Role reversal? Fonterra finds favour while a2 Milk slumps 4 Mar, 2021 04:00 PM 6 minutes to read Fonterra's units have outperformed the market so far this year. Photo / NZ Herald It's usually the other way round, but Fonterra's units have been finding favour on the sharemarket while a2 Milk's shares have foundered. In a2's case, the third downward revision in a row of its earnings prospects has seen the stock slump to $10.01 - about half its $21.51 peak last July - due to Covid-19 disruption in the unofficial trade channel into China. Meanwhile Fonterra's units - which give investors access to the co-op's dividends - have been a top performer, closing at $5.09.