** Zip ZIP.AX jumps as much as 11.5%; marks steepest pct rise since April 16

** Stock top pct gainer on benchmark ASX200 index

** Consumer lender reports FY25 YTD operating margin of 14.2%, up from 7.9% in FY24

** Reconfirms FY25 guidance for cash EBTDA of at least A$153 mln ($99.2 mln)

** ZIP last up 10.5%, trimming YTD decline to ~40%

($1 = A$1.5425)

(Reporting by Kumar Tanishk in Bengaluru)

((Tanishk.Kumar@thomsonreuters.com; X: @thatstanishk;))