Inflation and Your Portfolio Even low inflation rates can pose a threat to investment returns. Share | Related Content From Boats to Brokers From the Dutch East India Company to Wall Street, the stock market has a long and storied history. What’s Your Investment IQ? You make decisions for your portfolio, but how much do you really know about the products you buy? Try this quiz 5 Smart Investing Strategies Getting what you want out of your money may require the right game plan.