Sony shares plunged over 10 percent in Tokyo after the firm slashed its profit forecast

Sony, Panasonic and Sharp racked up a combined $38 billion in losses in the five years to March 2013

Sony says it's on track to shift 42 million smartphones this financial year...

...that's less than half the estimated number Samsung shipped in the third quarter alone

Sony's PS4 game console will be sold at a loss - but it hopes it will "contribute to profitability at an early stage"

No analysts tracked by Reuters have a sell rating on Sony stock

Sony cut around 10,000 jobs in the last business year

Fitch Ratings has called for "more aggressive reform to revamp (Sony's) product portfolio, and to cut fixed costs"