Bausch & Lomb Stock Hit by Fungus Outbreak:

Shares of Bausch & Lomb Inc. plunged 17 percent Tuesday, a day after the eye-care company voluntarily suspended shipments of a contact lens solution linked by federal health officials to a fungal eye infection that can cause temporary blindness.

By the way, this is a poorly written headline/lede paragraph, so let’s clarify: 

(1) Bausch & Lomb’s stock ("the capital or fund that a corporation raises through the sale of shares entitling the stockholder to dividends and to other rights of ownership, such as voting rights") plunged….

(2) because Bausch & Lomb’s stock ("total merchandise kept on hand by a merchant, commercial establishment, warehouse, or manufacturer’) got hit by a fungus.