*Nikkei falls 5.3 pct, hits 2-wk closing low

*Grim forecasts from Best Buy, Intel weigh on tech exporters

*Two major glass makers slide after cartel fines (Adds stocks, details)

By Aiko Hayashi

TOKYO, Nov 13 (Reuters) - The Nikkei average slid 5.3 percent to a two-week closing low on Thursday, with high-tech exporters such as Sony Corp (6758.T: Quote, Profile, Research) hit by a firmer yen and worries about their earnings prospects after a top U.S. electronics chain issued a profit warning.

Nippon Sheet Glass (5202.T: Quote, Profile, Research) and Asahi Glass (5201.T: Quote, Profile, Research) tumbled after the European Commission imposed its highest ever cartel penalty on Wednesday, fining them and other companies more than 1.3 billion euros ($1.62 billion). [ID:nT5601]

Mizuho Financial Group (8411.T: Quote, Profile, Research) came under pressure after Japan's No.2 bank said it will raise funds to replenish a capital base hit by the global credit crisis and overexposure to domestic stocks. Japanese media said it could seek as much as $3.2 billion. [ID:nT202479]

"In various sectors, earnings prospects for this business year and the next are grim, and the market appears to be in a tug of war between that and the valuation of stocks in the mid to long term," said Junichi Misawa, a senior fund manager at STB Asset Management.

"But as far as share prices go, I don't see a huge crumbling of the supply and demand balance today, compared to times when short-term selling pressure inflated market volatility."