IDT Corporation (IDT) - Market capitalization

Market cap: £1.27 Billion

As of September 2026 IDT Corporation has a market cap of £1.27 Billion. This makes IDT Corporation the world's 5286th 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	£1.27 B	32.14%
2025	£0.96 B	0.35%
2024	£0.96 B	43.24%
2023	£0.67 B	13.35%
2022	£0.59 B	-29.52%
2021	£0.84 B	264.25%
2020	£0.23 B	58.79%
2019	£0.14 B	25.99%
2018	£0.11 B	-40.63%
2017	£0.19 B	-43.78%
2016	£0.34 B	88.81%
2015	£0.18 B	-39.35%
2014	£0.30 B	21.46%
2013	£0.24 B	84.85%
2012	£0.13 B	-1.81%
2011	£0.13 B	-56.29%
2010	£0.31 B	454.99%
2009	£56.58 M	172.98%
2008	£20.72 M	-93.56%
2007	£0.32 B	-40.94%
2006	£0.54 B	-18.55%
2005	£0.66 B	-13.89%
2004	£0.77 B	-28.15%
2003	£1.08 B	13.67%
2002	£0.95 B	-7.74%
2001	£1.03 B

End of Day market cap according to different sources

On Sep 18th, 2026 the market cap of IDT Corporation was reported to be:

£1.29 Billion

by Nasdaq

£1.27 Billion

by CompaniesMarketCap

Market capitalization for similar companies or competitors

Name	Marketcap	Market cap differencediff.	Country
Microsoft MSFT	£2.737 T	213,982.42%	🇺🇸 USA
AT&T T	£129.95 B	10,062.36%	🇺🇸 USA
Fiserv FISV	£18.73 B	1,365.18%	🇺🇸 USA
Verizon VZ	£149.18 B	11,565.99%	🇺🇸 USA
Orange ORA.PA	£34.25 B	2,579.03%	🇫🇷 France
Vonage Holdings Corp. VG.defunct	£4.02 B	214.45%	🇺🇸 USA
Consolidated Communications CNSL	£0.41 B	-67.35%	🇺🇸 USA
Telefónica TEF.MC	£17.24 B	1,248.67%	🇪🇸 Spain
8x8 EGHT	£0.19 B	-85.07%	🇺🇸 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: £1.27 Billion