** Shares of Australia's GrainCorp GNC.AX fall as much as 11.6% to A$5.50, their lowest since late October 2021
** Stock biggest loser on the benchmark index .AXJO, which is down 0.1%
** Agribusiness firm posts 92.1% fall in half-yearly net profit after tax to A$4.6 million ($3.34 million)
** Reports revenue from ordinary activities at A$3.88 billion, 5.1% lower than prior corresponding period
** Declares interim dividend of 14 Australian cents per share, same as the previous year
** GNC stock down 22.3% YTD
($1 = 1.3791 Australian dollars)
(Reporting by Keshav Singh Chundawat in Bengaluru)
((Keshav.singhchundawat@thomsonreuters.com))