[It should be noted that eNotes responses are intended for purposes of academic study only. They should not be used as financial planning advice.]
The global financial situation is uncertain at best at the moment. The EU crisis is ongoing, the Chinese economic growth is slowing, and the recoveries in the US and certain developing countries are uncertain at best. There is really no reliable way to predict market performance in the near future; even fairly sophisticated investors are keeping quite large cash reserves.
In general, in uncertain periods, a diverse portfolio, with perhaps a higher than normal emphasis on cash and bonds is a good idea, but individual portfolios need to be based on specific individual needs. Usually paying off debt (whether credit card or mortgage) should be a top priority, followed by building a balanced investment portfolio, with limited exposure to any one sector.