In the world of finance, the term "operating income" refers to the profit a company earns from its core business operations, after deducting all expenses except income taxes and other non-business related items. This metric is a key indicator of a company's financial health and is often used to evaluate its profitability and efficiency. It is important to understand this concept in order to make informed investment decisions. Let's delve deeper into the nuances of operating income and its significance in the business world.