| Income Statement (Statement of Operations) | A financial statement showing the revenues, expenses, and income (the difference between revenues and expenses) of a company over some period of time. | |
| Index | An unmanaged selection of securities whose performance as a group is used to measure investment results. Examples include the Dow Jones Industrial Average, the Nasdaq Composite, and the S&P 500. | |
| Inflation | A continuous increase over time in the overall costs of goods and services. | |
| Initial Public Offering (IPO) | A company's first sale of stock to the public. | |
| Intangible Assets | A non-physical asset that represents a competitive advantage to a company, such as brand name, a trademark, patents or other intellectual property, and goodwill. | |
| Inventory | Goods that a company has produced or purchased, but not yet sold. Inventory is considered an asset. If inventory is growing faster than sales, this can be a warning sign that business growth is slowing. |