Portugal's economy has spent the whole of 2011 in negative territory.

The Dow has tipped back into negative territory for the year, but is still up 1.4pc today at 11,573.25.

The index also slipped back into negative territory for the year, down 1.38 percent.

All of the major stock indexes are deep in negative territory for the year.

Americans spent more than they made in 2005, sending the personal savings rate into negative territory for the first time since 1933.

The personal savings rate declined into negative territory last year for the first time since 1933.

After the oil price crash, cash flow for many companies was in negative territory.

In fact, he added, "it could pull the whole year into negative territory."

I expect by the end of the day we'll be in negative territory again.

But they have: some interest rates are now dancing into negative territory.