Nintendo's market value has jumped over the 10 million yen mark today, putting it in league with Toyota and Mitsubishi as one of the most valued Japanese companies.

If you're looking at the figure of 10 trillion yen and not sure what to make of it, it translates into $85 billion or £41.7 billion. The jump comes following a 4.6 percent jump in the value of its shares at 4:34 (GMT) this morning.

While Nintendo still only has half the market cap of Toyota (23 trillion yen), it is 80 percent higher than that of Japanese rival Sony, despite the company having revenues that are more than eight times those of Nintendo.

The rise in share value has been attributed to the announcement of Wii Fitness's release on December 1st in Japan, along with conventional wisdom which tells us that the Wii and DS are going to make a small fortune over Christmas.

Nintendo became the second most valuable company in Japan for a while at the end of September while trading of Mitsubishi shares was suspended.

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