Inflation and Your Portfolio Even low inflation rates can pose a threat to investment returns. Share | Related Content Can Election Results Predict the Market? How do the markets usually react to elections? Was the 2016 election any different? The Anatomy of an Index The S&P 500 represents a large portion of the value of the U.S. equity market, it may be worth understanding. 5 Smart Investing Principles Principles that can help create a portfolio designed to pursue investment goals.