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. Types of Stock Market Analysis Most stock market analysis falls into three broad groups: Fundamental, technical, and sentimental. Here’s a look at each. 5 Smart Investing Principles Principles that can help create a portfolio designed to pursue investment goals.