Olympus Coverup Spooks Investors

TOKYO—Olympus Corp.'s admission that it hid investment losses raised as many questions as it answered: not just about the full extent of the scandal, but even about the viability of the 92-year-old company.

The disclosures established Olympus at the center of one of the most damaging and bizarre accounting scandals in modern business history—a coverup that extended for decades.

Olympus's shares continued to plummet, falling 20% Wednesday morning in Tokyo following a 29% drop the day before, and prompting stock-lender Japan Securities Finance Co. to temporarily stop lending Olympus shares to short sellers.    More Read