E.L.F. Beauty Inc. /zigman2/quotes/202760864/composite ELF -6.15% stock soared 5.2% in Tuesday premarket trading after the cosmetics company was upgraded to overweight from neutral at Piper Sandler based on share gains, particularly among Gen Z, driven by a recent social media campaign. E.L.F. launched a TikTok campaign, #elfingamazing, in October, and the company has gotten more than 4 billion views since. At a recent beauty industry event that analysts attended, E.L.F. was a standout for its use of the TikTok platform. The company has also launched new products, one an extension of the popular Poreless Putty merchandise. "Too, we are encouraged by E.L.F.'s segmentation, with differing exclusives at top accounts (Walmart Inc. /zigman2/quotes/207374728/composite WMT +0.70% , Ulta Beauty Inc. /zigman2/quotes/210513442/composite ULTA -2.86% and Target Corp. /zigman2/quotes/207799045/composite TGT -1.90% ," Piper Sandler said. E.L.F. stock has skyrocketed more than 93% over the past year while the S&P 500 index /zigman2/quotes/210599714/realtime SPX -1.51% is up 19.2% for the period.