In response to the financial crisis of 2008, the Federal Reserve (Fed) purchased over $4.2 trillion in bonds through a series of quantitative easing measures designed to push interest rates lower in an attempt to improve the environment for economic growth.

Stocks, bonds, and cash are fundamental components of an investment portfolio. However, many other investments can be used to try to spice up returns or reduce overall portfolio risk. So-called alternative assets have become popular in recent years as a way to provide greater diversification.

There are five estate planning documents you may need, regardless of your age, health, or wealth: durable power of attorney, advance medical directives, will, letter of instruction, living trust. The last document, a living trust, isn't always required, but it's included here because it's a vital component of many estate plans. Learn more about each of these documents and why they are necessary.

Though the ups and downs of the bond market are not usually as dramatic as the movements of the stock market, they can still have a significant impact on your overall return. If you're considering investing in bonds, either directly or through a mutual fund or exchange-traded fund, it's important to understand how bonds behave and what can affect your investment in them.

Deciding when to retire may not be one decision but a series of decisions and calculations.

It's generally a good idea to review your employer-sponsored retirement savings plan at least once each year and when major life changes occur. If you haven't given your plan a thorough review within the last 12 months, now may be a good time to do so.