IRR Calculation is a free Chrome extension developed by Agustin Messina. It falls under the category of Browsers and is classified as an Add-ons & Tools subcategory.

This extension is designed to calculate the Internal Rate of Return (IRR) for a selected period of time in the Google Finance stock graph. When you search for stocks of a company using the Google search engine, you will see a graph displaying the stock prices for different time periods such as days, months, and years. By clicking and dragging a date range on the graph, Google shows a card with the stock price variance.

IRR Calculation takes this variance and calculates the IRR, providing users with a valuable tool for analyzing the performance of stocks over a specific time frame. With this extension, users can make more informed investment decisions based on the calculated IRR.