*Nikkei falls 2.9 pct after 3.3 pct gain on Tuesday
*Firm yen, economy worries weigh on exporters
*MUFG drops after newspaper report about profit estimate cut (Adds comment, stocks)
By Aiko Hayashi
TOKYO, Oct 22 (Reuters) - The Nikkei average slid 2.9 percent on Wednesday, dragged down by exporters such as Sony Corp <6758.T> on a firmer yen and amid fears over a global recession and deteriorating corporate earnings.
Mitsubishi UFJ Financial Group's <8306.T> shares skidded more than 6 percent after the Nikkei business daily said Japan's top lender will sharply cut its net profit estimate for the half year. [
]"The market could decide all the bad news has run its course if it could draw a picture in which the global economy, including Japan, would recover in six months or a year," said Yoshinori Nagano, a chief strategist at Daiwa Asset Management.
"But at the moment, we can't say that scenario seems very likely."
The Nikkei average <
> shed 265.18 points to end the morning session at 9,041.07, after falling as much as 3.4 percent at one stage. It finished the previous day up 3.3 percent.The broader Topix <
> declined 3.3 percent to 924.95."Poor earnings prospects are preventing the Nikkei average from fetching further above 9,000, though money markets appear to have calmed down a bit," said Yoku Ihara, manager at Retela Crea Securities.
Earnings worries also pushed down U.S. stocks on Tuesday, though technology shares rallied in after-hour trade after iPod maker Apple <AAPL.O> reported a stronger-than-expected 26 percent rise in quarterly profit. [
]Trade was light on the Tokyo exchange's first section, with 851 million shares changing hands, compared with last week's morning average of 1.1 billion.
Declining stocks outpaced advancing ones by more than 5 to 1.
EXPORTERS DOWN, MUFG SLIDES
Shares of Mitsubishi UFJ lost 6.1 percent to 797 yen.
The Nikkei business daily said Mizuho Financial Group <8411.T> and Sumitomo Mitsui Financial Group <8316.T> are also finalising plans to cut their earnings outlooks.
Mizuho declined 4.7 percent to 348,000 yen and SMFG fell 5.7 percent at 518,000 yen.
Among exporters, Sony dropped 6.3 percent to 2,530 yen and Canon Inc <7751.T> fell 2.3 percent to 3,380 yen.
The euro fell as low as 130.17 yen, the lowest since June 2004 as investors bet that interest rates outside the United States will be cut sharply to try to bolster global growth.
Investors fret over a stronger yen as it curbs exporters' overseas profits when they are brought back home.
Automakers declined also after the Nikkei business daily said Toyota Motor Corp <7203.T> will post its first sales decline in a decade in 2008, with vehicle sales now appearing likely to drop 2 percent below the previous year's levels. [
]Toyota fell 0.5 percent to 3,770 yen, while Honda Motor Co <7267.T> lost 3.1 percent to 2,360 yen.
Shares of major steelmakers such as Nippon Steel Corp <5401.T> and JFE Holdings <5411.T> lost ground after an industry body said steelmakers could soon cut output on signs of weakening demand amid fears of a global recession. [
]Nippon Steel dropped 5 percent to 323 yen and JFE Holdings slid 4.8 percent to 2,365 yen. (Reporting by Aiko Hayashi; Editing by Edwina Gibbs)