From Boats to Brokers From the Dutch East India Company to Wall Street, the stock market has a long and storied history. Share | Related Content When Markets React When markets shift, experienced investors stick to their strategy. Rebalancing Your Portfolio Over time, different investments' performances can shift a portfolio’s intent and risk profile. Rebalancing may be critical. What Is the Dividend Yield? This calculator helps determine your pre-tax and after-tax dividend yield on a particular stock.