Why is Arm stock sliding today?

Market activity shows a downward trend for three distinct companies. ACADIA Pharmaceuticals is experiencing a stock tumble, while Gildan Activewear is seeing its stock plunge significantly. Simultaneously, Arm stock is sliding in current trading sessions. These movements indicate a negative trajectory for the shares of these specific entities across the pharmaceutical, apparel, and semiconductor sectors. Investors are observing these declines as the market reacts to various factors influencing the valuation of ACADIA Pharmaceuticals, Gildan Activewear, and Arm.