Why is VivoSim Labs stock sliding today?

Recent market activity shows significant price movements for several companies. NioCorp and Palantir Technologies both experienced stock surges today. Similarly, Newmont stock popped as Wall Street reacted positively to its current valuation. In contrast, VivoSim Labs saw its stock price slide. These divergent trends highlight varying investor sentiments across the mining, technology, and laboratory sectors, with three companies seeing gains while one faced a decline in its overall market valuation today.