To continue with the series on Investing Basics, we are going to explore sectors. I want you to determine if sector investing is the right strategy for you. What is a sector? A sector is a business grouping within a similar area of the economy. Investing a crypto currency is similar to investing in a sector. When it comes to stocks, today’s most common sectors include, financial, technology, health care, energy, utilities, real estate, consumer goods, and durable goods.