** Shares of BrainChip Holdings BRN.AX fall as much as
7.5% to A$0.185, their lowest since Feb. 6
** Stock posts its biggest intraday percentage decline since
June 24
** AI chip designer announces capital raising of A$25 mln
($16.38 mln) at A$0.193 per share
** Issue price represents a 3.5% discount on co's last close
** Says funds will be used for commercialisation of its
'Akida 2.0' chip technology, among others
** Stock trims YTD gains to 8.8%, including session's moves
($1 = 1.5267 Australian dollars)
(Reporting by Aaditya Govind Rao in Bengaluru)
((Aaditya.govindrao@thomsonreuters.com;))