The U.S. and NATO are in talks for a coordinated rollout of a new Afghan strategy that could include a European commitment to send thousands ... more

Not putting all your eggs in one basket is the most basic principle of investing. It also may be the hardest to get right.

Small-cap stocks fell for Friday and the week, led downward by the energy sector. Among Friday's decliners were Penn Virginia, MTS Systems and Wet Seal.

The IPOs of U.S. online education company Archipelago Learning and Chinese hotel chain 7 Days Group attracted investors, while coal miner Cloud Peak and defense-technology ... more

India and the U.S. are pushing to tie up details of a nuclear-energy cooperation agreement approved by their legislatures last year, ahead of Prime Minister ... more

Exxon ended months of negotiations with Nigeria by renewing three oil leases for fields the company operates in the country.