Forbes contributors publish independent expert analyses and insights. Catherine Brock covers personal finance and investing. In a perfect world, stock prices would always reflect underlying value. But ...

Stock indices are collections of stocks designed to represent or reflect the performance of a stock market, country, region, industry, or category of stocks. Investors frequently use indices to track ...

The Dollar Index is a long-running measure of the value of the U.S. Dollar against a variety of other fiat currencies. Investors can trade ETFs based off the index's movements, along with using it as ...

Smoke from wildfires in Canada has drifted into the U.S., prompting air quality alerts for Americans as it continues to spread. But when officials and forecasters classify a city's air as "unhealthy" ...

It's always important to protect yourself from UV radiation to avoid getting burned and damaging your skin. One way to plan for your safety outside is by checking the UV index. (Photo Credit: E+/Getty ...

Sarah Loughran receives funding from The National Health and Medical Research Council of Australia (NHMRC). She is the Principal Researcher and EME Program Director at the Australian Radiation ...

The Air Quality Index (AQI) is used by various government agencies to report how clean or polluted the air is in your area. For example, you may have spotted this metric popping up in local weather ...

For those new to investing or seasoned investors who like to keep things as simple and inexpensive as possible, an index fund could be your best friend. It's fair for beginning investors to ask "What ...

Your Handicap Index® represents your demonstrated playing ability. It is a portable number, so you can use it from course to course and tee to tee. It is based on the Score Differentials™ from your ...