(Adds stocks, details)
By Aiko Hayashi
TOKYO, Feb 1 (Reuters) - Japanese stocks fell after earlier gains on Friday, dragged down by Sony Corp <6758.T>, which lost more than 6 percent after the maker of PlayStation game gear and Vaio PCs cut its earnings outlook. [
]The market lost steam as investors turned nervous ahead of U.S. jobs data out on Friday and as a rise in financial stocks on Wall Street had been mostly factored in during Thursday's trade in Japan, said Takahiko Murai, general manager of equities at Nozomi Securities.
The jobs data is due at 1330 GMT on Friday. [
]"Sony's operating profit didn't go up as much as investors had expected, and they are disappointed," Murai said.
"The stock is very sensitive to moves in North American consumption, and if personal consumption slows, it might have a hard time. The worst seems to be over, but the currency poses another concern." The benchmark Nikkei average <
> ended the morning session down 0.6 percent or 84.67 points at 13,507.80 after a 1.9 percent gain on Thursday.The broader TOPIX index <
> shed 0.7 percent or 8.78 points to 1,337.53.The U.S. market rallied after MBIA, the No. 1 U.S. bond insurer, said it had enough cash to run its business of guaranteeing payments on corporate and municipal bonds. Standard & Poor's also told the company it had enough capital to keep its triple-A rating, MBIA executives said. [
]SONY HIT
Sony skidded 6.5 percent to 4,880 yen. The consumer electronics maker posted a small rise in quarterly operating profit and cut its outlook as weaker markets eat into its investments and a firmer yen hurts overseas sales.
Still, Koichi Ogawa, a chief portfolio manager at Daiwa SB Investments, said investors appear to be overselling Sony.
"Maybe this presents a buying opportunity for the stock as if you take a step back and see, Sony has started making profits on its game business."
In contrast, Panasonic maker Matsushita Electric Industrial Co Ltd <6752.T> jumped 3.6 percent to 2,330 yen after reporting a 22 percent gain in quarterly operating profit on Thursday on brisk demand for its digital cameras and flat televisions.
Another notable stock was Suzuki Motor Corp <7269.T>, which shot up 6.4 percent to 2,845 yen.
The automaker booked a better-than-expected 23 percent jump in quarterly profit as its Swift, SX4 and other compact cars powered robust global sales growth amid record-high fuel prices. [
]Japan's top bank Mitsubishi UFJ Financial Group <8306.T> was down 1.3 percent at 1,020 yen.
Trade was moderate on the Tokyo exchange's first section, with 1 billion shares changing hands, in line with last week's morning average.
Declining stocks beat advancing ones by a ratio of nearly two to one. (Reporting by Aiko Hayashi)