As of October 2026 IDT Corporation has a market cap of A$2.91 Billion. This makes IDT Corporation the world's 4900th most valuable company by market cap according to our data. The market capitalization, commonly called market cap, is the total market value of a publicly traded company's outstanding shares and is commonly used to measure how much a company is worth.
On Sep 30th, 2026 the market cap of IDT Corporation was reported to be: