** Shares of a2 Milk ATM.NZ fall as much as 11.2% to NZ$7.90, hitting their lowest level since mid-July, 2025
** Stock set for worst intraday trading session since April 13
** Stock's relative strength index slips below 30, widely seen as signalling oversold conditions
** The dairy producer commenced a recall of three batches of its a2 Platinum infant milk formula sold in U.S.
** Product recall done after testing detected cereulide, a toxin that can cause vomiting
** Product manufactured by associate co, Synlait Milk SML.NZ, whose shares are down as much as 1.2% at NZ$0.42
** Citi sees risk that recall could make its way on social media in China and cause damage to brand; says it is unknown to what extent it might be part of a more significant issue
** a2 Milk stock top loser on benchmark S&P/NZX 50 index .NZ50
** YTD, ATM down 25.3%, including the day's moves
(Reporting by Shivangi Lahiri in Bengaluru; Editing by Edmund Klamann)
((shivangi.lahiri@thomsonreuters.com))