** Guzman y Gomez GYG.AX slides as much as 21.5% to record low of A$22.74; marks weakest trading session ever
** Quick service restaurant chain posts FY operating losses for U.S. segment; sees losses deepening further in FY26
** Says network sales in Australia rose 3.7% in first seven weeks of current business year, sharply lower than Visible Alpha consensus of 7.6% growth over first-half
** About 753,088 shares traded, 3.6x the 30-day average
** YTD, GYG falls ~43%
(Reporting by Sneha Kumar in Bengaluru)
((Sneha.kumar@thomsonreuters.com;))