TOKYO- Sony and Panasonic shares plunged to their lowest levels in more than three decades on Friday as investors fretted about the future prospects for two of Japan's most iconic firms amid massive losses.
Sony, which reported a record $5.7 billion annual loss Thursday, dived 5.11 percent to 1,151 yen by noon, while Panasonic was off 1.55 percent at 570 yen its earnings later Friday, which it has warned may show a record yearly loss.
By midday, the firms' shares stood at their lowest level since September 1980, taking into account previous stock splits, according to the online edition of the Nikkei business daily.
Meanwhile Sharp shares treaded year lows, falling 4.4 percent to 393 yen.
The sell-off came after Sony said it lost 456.66 billion yen ($5.7 billion) in the year to March, its fourth consecutive year in the red, but vowed to swing back to profitability this year.
Sony has long struggled to stem losses at its television division and blamed a strong yen and natural disasters among the main reasons for its disastrous results.
Panasonic has warned it is on track to report its worst-ever net loss, of 780 billion yen, in what may be among the worst-ever shortfalls recorded by a non-financial Japanese company.
Falling prices, particularly in the television segment, have eaten away at the bottom line of major Japanese electronics makers as a strong yen made their products more expensive overseas while a stuttering global economy knocked sales.
Sony, along with Panasonic and Sharp, has been fighting a losing battle for years against fierce competition offered from the likes of South Korea's Samsung and US-based Apple.
Analysts have called on Sony to drastically overhaul its business, including possibly leaving the TV business all together.
Last month, Sony said it would cut about 10,000 jobs and spend nearly $1 billion on an overhaul that its new chief executive Kazuo Hirai described as "urgent".
"On the whole, (Sony) remains at risk of ongoing losses in its cellular application and TV businesses, and we continue to see little prospect of a rise in valuations for the time being," Credit Suisse analysts Yuan Tian and Shunsuke Tsuchiya said in a client note.
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