A deterioration in overseas demand may gradually affect the Japanese economy, like a body blow.

U.S. stocks have settled down, but data on the economy is getting worse. Investors are increasingly worried the U.S. economy will fall off a cliff and pull Japan over with it.

But a sour-loan solution remains elusive, the supplementary budget is unlikely to do much for the economy, and the future direction for Wall Street remains unclear.

Even good earnings results from well-known names like Toyota Motor Corp aren't helping sentiment,

Many had bought high-techs on the back of a weaker yen. But a scenario of the yen's free fall doesn't seem realistic,

There's uncertainty in the market and investors are looking to large-cap shares for relative safety.