IDT Corporation (IDT) Ownership
IDT ownership summary
as of October 18, 2026- Institutions
- 62.0% of shares outstanding
- Insiders
- 13.11% of shares outstanding
- Shares outstanding
- 23.3M
- Float
- 20.4M shares available to trade
- Short interest
- 4.71% 746K shares short
- Days to cover
- 2.32 short interest up 39.2% vs prior month
- Institutions 61.97%
- Insiders 13.11%
- Other investors 24.92%
IDT top institutional holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | BlackRock Inc | 7.74% | 1.9M | $155.2M | +149,538 (+8.4%) | June 30, 2026 |
| 2 | Vanguard Capital Management, LLC | 3.57% | 887K | $71.6M | +6,123 (+0.7%) | June 30, 2026 |
| 3 | Renaissance Technologies Corp | 3.54% | 879K | $70.9M | −67,005 (−7.1%) | June 30, 2026 |
| 4 | Dimensional Fund Advisors, Inc. | 3.14% | 780K | $62.9M | −8,209 (−1.0%) | June 30, 2026 |
| 5 | Geode Capital Management, LLC | 2.63% | 653K | $52.7M | +48,338 (+8.0%) | June 30, 2026 |
| 6 | State Street Corp | 2.48% | 617K | $49.8M | +82,329 (+15.4%) | June 30, 2026 |
| 7 | First Trust Advisors L.P. | 2.06% | 513K | $41.4M | +451,829 (+740.2%) | June 30, 2026 |
| 8 | American Century Companies Inc | 1.68% | 417K | $33.6M | +323,377 (+345.5%) | June 30, 2026 |
| 9 | Deutsche Bank AG | 1.56% | 387K | $31.2M | +1,789 (+0.5%) | June 30, 2026 |
| 10 | Kahn Brothers & CO Inc /DE/ | 1.42% | 352K | $28.4M | −20,906 (−5.6%) | June 30, 2026 |
| 11 | Morgan Stanley - Brokerage Accounts | 1.38% | 343K | $27.7M | +108,807 (+46.4%) | June 30, 2026 |
| 12 | D. E. Shaw & Co LP | 1.19% | 296K | $23.9M | +57,450 (+24.1%) | June 30, 2026 |
| 13 | Jacobs Levy Equity Management, Inc. | 1.12% | 279K | $22.5M | −12,026 (−4.1%) | June 30, 2026 |
| 14 | Nuveen, LLC | 1.10% | 272K | $21.9M | +51,258 (+23.2%) | June 30, 2026 |
| 15 | Charles Schwab Investment Management Inc | 1.03% | 255K | $20.6M | −30,479 (−10.7%) | June 30, 2026 |
| 16 | Vanguard Portfolio Management, LLC | 0.99% | 245K | $19.7M | −5,273 (−2.1%) | June 30, 2026 |
| 17 | Cooke & Bieler LP | 0.97% | 242K | $19.5M | −167,347 (−40.9%) | June 30, 2026 |
| 18 | AQR Capital Management LLC | 0.75% | 186K | $15.0M | +94,701 (+103.5%) | June 30, 2026 |
| 19 | Northern Trust Corp | 0.68% | 168K | $13.5M | +10,040 (+6.4%) | June 30, 2026 |
| 20 | Millennium Management LLC | 0.68% | 168K | $13.5M | −55,256 (−24.8%) | June 30, 2026 |
Value at the latest close. Change = shares bought or sold in the latest quarterly filing (13F). In the top 20, 12 holders added 1.4M shares and 8 cut 367K.
IDT top mutual fund and ETF holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | First Trust SMID Cp Rising Div Achv ETF | 3.22% | 801K | $64.6M | — | September 30, 2026 |
| 2 | Vanguard MStar Total Stk Mkt Idx Invest | 2.54% | 632K | $51.0M | — | August 31, 2026 |
| 3 | iShares Russell 2000 ETF | 1.73% | 429K | $34.6M | −4,928 (−1.1%) | September 30, 2026 |
| 4 | DWS Small Cap Core S | 1.41% | 350K | $28.2M | −17,865 (−4.9%) | August 31, 2026 |
| 5 | Avantis US Small Cap Value ETF | 0.78% | 194K | $15.6M | — | September 30, 2026 |
| 6 | Fidelity Small Cap Index | 0.73% | 181K | $14.6M | +1,659 (+0.9%) | July 31, 2026 |
| 7 | DFA US Small Cap I | 0.67% | 166K | $13.4M | — | August 31, 2026 |
| 8 | CREF Total Global Stock Account R3 | 0.58% | 145K | $11.7M | −7,380 (−4.9%) | August 31, 2026 |
| 9 | Nuveen Quant Small Cap Equity R6 | 0.56% | 140K | $11.3M | — | August 31, 2026 |
| 10 | State Street® SPDR® S&P® Telecom ETF | 0.53% | 131K | $10.6M | +1,250 (+1.0%) | September 30, 2026 |
| 11 | BlackRock Advantage Small Cap Core Instl | 0.51% | 128K | $10.3M | +6,156 (+5.1%) | August 31, 2026 |
| 12 | iShares Russell 2000 Growth ETF | 0.51% | 128K | $10.3M | −161 (−0.1%) | September 30, 2026 |
| 13 | Fidelity Select Telecommunications Port | 0.48% | 119K | $9.6M | −800 (−0.7%) | August 31, 2026 |
| 14 | BMC Global Small Cap Select I SEK | 0.47% | 118K | $9.5M | — | June 30, 2026 |
| 15 | DFA US Core Equity 2 I | 0.46% | 115K | $9.3M | — | August 31, 2026 |
| 16 | DFA US Micro Cap I | 0.46% | 113K | $9.1M | — | August 31, 2026 |
| 17 | Schwab US Small-Cap ETF™ | 0.44% | 109K | $8.8M | +72 (+0.1%) | September 30, 2026 |
| 18 | Vanguard Russell 2000 ETF | 0.39% | 96K | $7.8M | +1,127 (+1.2%) | September 30, 2026 |
| 19 | Fidelity Extended Market Index | 0.38% | 94K | $7.6M | −2,022 (−2.1%) | August 31, 2026 |
| 20 | DFA US Core Equity 1 I | 0.35% | 87K | $7.0M | — | August 31, 2026 |
Funds report holdings monthly or quarterly; dates differ by fund.
IDT insider transactions
latest 5| Date | Name | Transaction | Price | Shares | Value |
|---|---|---|---|---|---|
| 2026-04-14 | Marcelo Fischer | Sell | $50.50 | 5,000 | $252,500 |
| 2026-04-14 | Menachem Ash | Sell | $51.00 | 20,000 | $1.0M |
| 2026-01-15 | Marcelo Fischer | Sell | $52.04 | 920 | $47,877 |
| 2026-01-14 | Marcelo Fischer | Sell | $52.03 | 7,009 | $364,678 |
| 2026-01-08 | Marcelo Fischer | Sell | $52.29 | 641 | $33,518 |
Reported trades by company officers, directors and other filers (including disclosures by members of Congress where EODHD lists them). "—" where the filing gives no share count.
IDT shares outstanding
Year-end shares outstanding, adjusted for splits.
Who owns IDT
Institutional investors own 62.0% of IDT's shares and insiders 13.11%. The largest holder is BlackRock Inc with 7.74% of the shares (1.9M), as of June 30, 2026. Among the top 20 institutions, 12 added shares and 8 reduced their stake in the latest filings. Short interest is 4.71% of the float, or 2.32 days of average trading volume. The share count rose 9.1% since 2014.
Related: IDT analyst forecast, IDT key metrics, IDT dividend history. See the IDT stock overview for the latest quote and news.
IDT ownership FAQ
Who owns the most IDT stock?
The largest shareholders of IDT are BlackRock Inc (7.74%), Vanguard Capital Management, LLC (3.57%), Renaissance Technologies Corp (3.54%), Dimensional Fund Advisors, Inc. (3.14%), Geode Capital Management, LLC (2.63%).
What percentage of IDT is owned by institutions?
Institutions hold 62.0% of IDT's shares outstanding; insiders hold 13.11%.
Which funds own IDT?
The largest fund holders of IDT are First Trust SMID Cp Rising Div Achv ETF (3.22%), Vanguard MStar Total Stk Mkt Idx Invest (2.54%), iShares Russell 2000 ETF (1.73%), DWS Small Cap Core S (1.41%), Avantis US Small Cap Value ETF (0.78%).
What is IDT's short interest?
746K shares of IDT were sold short, 4.71% of the float; at the average daily volume it would take 2.32 days to cover.
Are insiders buying or selling IDT?
Of the latest 5 reported insider transactions in IDT (since January 8, 2026), 0 were purchases and 5 were sales.
How many shares of IDT are outstanding?
IDT has 23.3M shares outstanding, of which 20.4M are in the public float.