BeyondSpring is trading 5.02% up at $0.49 versus the prior close; no fresh company-specific announcement explaining the October 28 pre-market move was identified. - Its latest listed item is a corporate presentation dated October 25. - FDA Fast Track and DUBLIN-4 financing news was announced September 29, so neither is a new October 28 catalyst. - Broader market signals are mixed, and available information does not establish a cause for the move.