Biotech Lagged The Broader Market In September — Did Retail Favorites SLS, IBRX, VNDA And IOVA Dodge XBI’s Slump?

Biotech stocks trailed the S&P 500 and Nasdaq-100 in September, yet Iovance Biotherapeutics (IOVA) and ImmunityBio (IBRX) bucked the sector’s decline, while Sellas Life Sciences (SLS) awaited key leukemia data and Vanda Pharmaceuticals (VNDA) unveiled a late-month sleep-drug trial win.So far this m…