** Shares of Australia's Webjet Group WJL.AX fall as much as 18.4% to a record low of A$0.4
** Stock hits its biggest intraday pct drop since February 13
** Stock on track for a fourth consecutive session of losses, if current trend holds
** The online travel agency posts FY26 underlying net profit after tax (NPAT) of A$13.6 million ($9.65 million), down 24% from last year
** Expects FY27 to be materially impacted by lower airline commissions, among others
** Webjet says Virgin Australia VGN.AX, through unit Virgin Australia Airlines, has informed unit Webjet Marketing that VGN will reduce its commission streams, commercial arrangements
** YTD, stock down 51.1%
($1 = 1.4088 Australian dollars)
(Reporting by Aamir Sheik Khalid in Bengaluru)
((Aamir.SheikKhalid@thomsonreuters.com))