** Shares of out-of-home waxing services provider European Wax Center EWCZ.O rise as much as 26% to $4.99 in early trading
** Stock set for its best day on record, if gains hold
** Co beat estimates for Q1 revenue and adjusted core profit, according to data compiled by LSEG
** System-wide sales rose 2.1% to $225.9 million in Q1, driven by increased spending by guests at co's centers
** Co, however, maintains annual forecasts
** "We continue to navigate a dynamic macroeconomic environment and are taking a disciplined, strategic approach to managing our supply chain with franchisee success top of mind," CEO Chris Morris says
** Up to last close, stock has fallen 40% YTD
(Reporting by Neil J Kanatt in Bengaluru)
((Neil.JKanatt@thomsonreuters.com;))