ToplineSales growth for LVMH through the French conglomerate’s latest quarter fueled a broader luxury sector rally Wednesday, boosting shares for Hermès, L’Oreal, Dior, Prada and more as Bernard Arnault, the bellwether’s billionaire chairman, had more than $18 billion added to his net worth. The luxury bellwether reported sales growth for the first time this year. Getty ImagesKey FactsThe CAC 40, France’s luxury-heavy index featuring Hermès, Kering and LVMH, among others, closed up nearly 2% on Wednesday, t ...