** Shares of Lovisa Holdings LOV.AX fall as much as 13.2% to A$30.21, their lowest level since July 7

** Fast fashion jewellery retailer heading for worst day since early January 2025, if losses hold; co top loser in the benchmark index .AXJO

** Co posts global comparable store sales growth of 3.5% in first 20 weeks of FY26

** Sales growth is slightly lower than VA consensus estimate of 5.3% growth for first half, according to Citi

** Comparable sales growth for first 20 weeks also lower than 5.6% growth in first 8 weeks of FY26

** Stock up ~3.5% this year, including the day's move

(Reporting by John Biju in Bengaluru)

((John.Biju@thomsonreuters.com))