Uncertainties over how Toshiba will run the nuclear power business and its financing scheme for the acquisition prompted investors to sell.

It seems that foreign selling, partly spurred by relatively expensive Japanese shares, has peaked out.

Share prices were weaker as many investors are keenly awaiting the machinery orders (figures).

Because of the uncertainties over exchange rates, investors were hesitant to chase export-oriented shares, and instead, went for domestic-demand-oriented shares.

Basically, investors can't really take aggressive positions this week, as they are waiting for the Bank of Japan's meeting, even if they expect the end to the ultra-loose policy to come on Thursday.

Market participants are relieved as they now see the trend of foreigners exiting the Japanese market is over.