What percentage of investment in stock?

In general, two things to remember:
1) Stocks are considered to be on the risky side as far as investments go.
2) As you approach retirement and as you retire, your investments are supposed to become more and more conservative.

Many retirement planners want retirees to insure that they have adequate lifetime income -- guaranteed income that covers your expenses indefinitely -- and have insured themselves against unforseen risks like healthcare crises, inflation and fluctuations in financial markets.

Stocks can and often do play a part in a retirement strategy, but should most often be part of a holistic financial plan.

Retirement is not really something that should be planned by amatuers. You might want to consider working with a financial planner.

Learn more about financial planners here: http://www.newretirement.com/Services/Professional_Financial_Advisors.aspx

Or, learn more about financial planning for retirement... http://www.newretirement.com/Services/Retirement_Planning.aspx

And, the risks retirees face:
http://www.newretirement.com/Services/Retirement_Risks.aspx