As of January 2026 IDT Corporation has a market cap of A$1.87 Billion. This makes IDT Corporation the world's 5620th 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 Jan 16th, 2026 the market cap of IDT Corporation was reported to be: