IDT Corporation (IDT) - Market capitalization

Market cap: A$1.78 Billion

As of April 2026 IDT Corporation has a market cap of A$1.78 Billion. This makes IDT Corporation the world's 5584th 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.

Market cap history of IDT Corporation from 2001 to 2026

End of year Market Cap

Year	Marketcap	Change
2026	A$1.78 B	-8.49%
2025	A$1.94 B	0.01%
2024	A$1.94 B	54.55%
2023	A$1.25 B	19.22%
2022	A$1.05 B	-32.71%
2021	A$1.56 B	282.58%
2020	A$0.41 B	50.29%
2019	A$0.27 B	30.96%
2018	A$0.20 B	-38.21%
2017	A$0.33 B	-43.14%
2016	A$0.59 B	58.88%
2015	A$0.37 B	-35.14%
2014	A$0.57 B	24.95%
2013	A$0.46 B	119.79%
2012	A$0.20 B	0.75%
2011	A$0.20 B	-56.41%
2010	A$0.47 B	368.21%
2009	A$0.10 B	136.71%
2008	A$43.06 M	-94.12%
2007	A$0.73 B	-45.99%
2006	A$1.35 B	-14.12%
2005	A$1.57 B	-18.2%
2004	A$1.92 B	-25.93%
2003	A$2.60 B	-3.88%
2002	A$2.70 B	-7.58%
2001	A$2.93 B

End of Day market cap according to different sources

On Mar 31st, 2026 the market cap of IDT Corporation was reported to be:

A$1.78 Billion

by Nasdaq

A$1.78 Billion

by CompaniesMarketCap

Market capitalization for similar companies or competitors

Name	Marketcap	Market cap differencediff.	Country
Microsoft MSFT	A$3.978 T	223,352.54%	🇺🇸 USA
AT&T T	A$293.50 B	16,383.08%	🇺🇸 USA
Fiserv FISV	A$43.40 B	2,337.55%	🇺🇸 USA
Verizon VZ	A$306.20 B	17,096.26%	🇺🇸 USA
Orange ORA.PA	A$78.59 B	4,313.72%	🇫🇷 France
Vonage Holdings Corp. VG.defunct	A$7.78 B	337.42%	🇺🇸 USA
Consolidated Communications CNSL	A$0.80 B	-54.58%	🇺🇸 USA
Telefónica TEF.MC	A$35.82 B	1,911.80%	🇪🇸 Spain
8x8 EGHT	A$0.33 B	-81.22%	🇺🇸 USA

What is the market capitalization of a company?

The market capitalization sometimes referred as Marketcap, is the value of a publicly listed company.
In most cases it can be easily calculated by multiplying the share price with the amount of outstanding shares.

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Market capitalization of IDT Corporation (IDT)

Market cap: A$1.78 Billion