Events on Wall Street Can successful investors predict changes in the markets? Some can but others miss the market’s signals. Share | Have A Question About This Topic? Name Email Address Message Thank you! Oops! Related Content From Boats to Brokers From the Dutch East India Company to Wall Street, the stock market has a long and storied history. A Look at Diversification Diversification is an investment principle designed to manage risk, but it can't prevent against a loss. 5 Smart Investing Principles Principles that can help create a portfolio designed to pursue investment goals.