On its first day as a publicly traded company Wednesday, Rockville-based Shuttle Pharmaceuticals Holdings Inc. (NASDAQ: SHPH) saw its shares climb a staggering 373% to close at $38.48. At one point late Wednesday, its shares were trading at above $65 — up more than 700% from their opening price.
In after-hours trading Wednesday, the stock was down about 17% from its close and trading around $32 a share.
The eye-popping gains came on a day when all the major U.S. stock indexes fell.