The company's gaping shortfall was announced after markets closed on Thursday and the firm's stock plummeted more than 11 percent to 176.3 yen today, its lowest close since late 1979.
One of Japan's best-known firms, Toshiba - which makes everything from rice cookers to nuclear reactors - has taken huge charges in the wake of an embarrassing profit-padding scandal, and it also blamed the global economic slowdown for weak sales.
Sharp's volatile stock skyrocketed more than 25 per cent at one stage yesterday on news that the electronics company - which has teetered on the edge of bankruptcy for years - was mulling rival rescue offers, including one from the Taiwan-based giant.
But the strong yen dragged the overall market lower, with Tokyo's benchmark Nikkei 225 index falling 1.32 per cent, or 225.40 points, to close at 16,819.59. The broader Topix index of all first-section shares lost 1.43 per cent, or 19.84 points, to 1,368.97.
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A stronger yen hurts Japanese exporters' profitability and tends to knock demand for their shares.
The yen dived last week after the Bank of Japan said it would adopt a negative interest rate policy, which stoked a brief global equities rally.
"The Bank of Japan has done what they should, but what they could do had its limits," Juichi Wako, a senior strategist at Nomura Holdings, told Bloomberg News.
Investors will keep a close eye on US jobs figures later today, after a disappointing services sector report this week aggravated worries about the world's top economy.
In other Tokyo trading, Toyota dropped 1.88 per cent to 6,625 yen, shortly before reporting its latest quarterly earnings after the markets closed today.
Banking giant Mitsubishi UFJ finished down 3.51 per cent at 538.2 yen, while Uniqlo operator Fast Retailing, a market heavyweight, shed 2.28 per cent to 34,590 yen.