Three main factors behind Nintendo's share price rise
On Monday shares in Nintendo rose to a record 46,350 yen on the Osaka Stock Exchange, giving the Kyoto-based company a market capitalisation of 6.56 trillion yen (52.9 billion dollars). Meanwhile, Sony's market value dropped to 6,460 yen each.
Analyst firm Mitsubishi UFK Securities cited three main factors behind Nintendo's strong share price.
"The DS is a big hit, there was a robust launch of the Wii and the cheap yen is a big plus," said equity analyst Murakami.
"I think it's justified that Nintendo's market capitalisation is larger than Sony's because Nintendo's profit is actually increasing," he added.
According to research, Wii, has outsold the PS3 by more than five units to one in Japan in May, while April US sales of Wii consoles were four times that of Sony's PS3.