IDT CORP (IDT)
Every FINRA and SEC series the site collects for IDT CORP: short interest with days to cover, daily short sale volume, fails to deliver and Form 4 insider trades. Listed on NYSE.
536K
Short interest
settlement 2026-08-31
3.6
Days to cover
-1.6% vs prior
72.8%
Short share of volume
2026-09-18
10
Fails to deliver
settlement 2026-08-25
Mon 28 Sep
Next earnings
estimated; last year 2025-09-29
-$1.8M
Insider flow, 90 days
0 buys, 3 sells
As of 2026-09-18.
Short interest
FINRA, twice a month; the last 12 months shown, all 48 settlements in the JSONAs of 31 August 2026, short interest in IDT is 535,823 shares, up 24,452 shares over the last month. Over the last 48 readings it ranged from 136,982 shares (31 December 2024) to 544,490 shares (14 August 2026). The latest reading sits at the top of that range. At the reported average volume of 149K shares a day that is 3.6 days to cover.
Embed this chartkeeps the attribution line it carries
<iframe src="https://xoomar.com/embed/stocks/idt" width="100%" height="440" style="border:0;max-width:100%" loading="lazy" title="XOOMAR chart"></iframe>
| Settlement | Shares short | Change | Avg daily volume | Days to cover |
|---|---|---|---|---|
| 2026-08-31 | 535,823 | -1.6% | 149,039 | 3.60 |
| 2026-08-14 | 544,490 | +6.5% | 176,366 | 3.09 |
| 2026-07-31 | 511,371 | +5.1% | 196,845 | 2.60 |
| 2026-07-15 | 486,401 | -7.0% | 190,350 | 2.56 |
| 2026-06-30 | 522,712 | +44.7% | 328,848 | 1.59 |
| 2026-06-15 | 361,291 | -6.6% | 196,453 | 1.84 |
| 2026-05-29 | 386,859 | +2.3% | 117,643 | 3.29 |
| 2026-05-15 | 378,333 | -1.5% | 126,371 | 2.99 |
| 2026-04-30 | 384,001 | -2.4% | 116,494 | 3.30 |
| 2026-04-15 | 393,305 | +6.4% | 113,185 | 3.47 |
| 2026-03-31 | 369,780 | -7.0% | 180,731 | 2.05 |
| 2026-03-13 | 397,568 | +21.7% | 171,893 | 2.31 |
| 2026-02-27 | 326,609 | -30.2% | 159,825 | 2.04 |
| 2026-02-13 | 468,086 | +73.7% | 156,322 | 2.99 |
| 2026-01-30 | 269,528 | -4.6% | 130,797 | 2.06 |
| 2026-01-15 | 282,478 | +6.2% | 146,072 | 1.93 |
| 2025-12-31 | 266,018 | -22.3% | 246,559 | 1.08 |
| 2025-12-15 | 342,154 | -24.0% | 221,936 | 1.54 |
| 2025-11-28 | 449,941 | -5.2% | 129,954 | 3.46 |
| 2025-11-14 | 474,475 | +20.2% | 134,145 | 3.54 |
| 2025-10-31 | 394,644 | -11.7% | 169,316 | 2.33 |
| 2025-10-15 | 446,754 | -12.6% | 297,383 | 1.50 |
| 2025-09-30 | 510,906 | +18.7% | 316,651 | 1.61 |
| 2025-09-15 | 430,567 | -1.3% | 135,253 | 3.18 |
Daily short volume
FINRA Reg SHO, last 60 sessions. JSONAs of 18 September 2026, the short share of IDT volume is 72.8%, up 13.2 points over the last five sessions. Over the last 52 readings it ranged from 27.5% (27 July 2026) to 77.8% (23 July 2026). The latest reading is 20.4 points above the 30-session average of 52.4%, on 93K shares reported.
| Date | Short volume | Total volume | Short share | Exempt |
|---|---|---|---|---|
| 2026-09-18 | 67K | 93K | 72.8% | 0 |
| 2026-09-17 | 53K | 101K | 51.8% | 0 |
| 2026-09-16 | 28K | 81K | 34.3% | 0 |
| 2026-09-15 | 38K | 77K | 49.3% | 2,704 |
| 2026-09-14 | 40K | 79K | 50.9% | 0 |
| 2026-09-11 | 37K | 63K | 59.6% | 500 |
| 2026-09-10 | 34K | 73K | 46.8% | 0 |
| 2026-09-09 | 47K | 78K | 59.9% | 7,618 |
| 2026-09-08 | 32K | 58K | 54.8% | 17 |
| 2026-09-04 | 18K | 40K | 44.9% | 0 |
| 2026-09-03 | 36K | 64K | 55.4% | 0 |
| 2026-09-02 | 25K | 53K | 46.7% | 0 |
| 2026-09-01 | 32K | 50K | 63.1% | 0 |
| 2026-08-31 | 22K | 39K | 55.5% | 0 |
| 2026-08-28 | 28K | 51K | 56.0% | 13 |
| 2026-08-27 | 41K | 57K | 71.2% | 0 |
| 2026-08-26 | 23K | 43K | 53.0% | 0 |
| 2026-08-25 | 46K | 91K | 51.0% | 0 |
| 2026-08-24 | 45K | 78K | 57.7% | 0 |
| 2026-08-21 | 15K | 30K | 49.7% | 0 |
| 2026-08-20 | 20K | 36K | 55.0% | 0 |
| 2026-08-19 | 31K | 54K | 57.1% | 0 |
| 2026-08-18 | 28K | 49K | 56.3% | 3,412 |
| 2026-08-17 | 18K | 45K | 40.7% | 114 |
| 2026-08-14 | 43K | 72K | 59.9% | 0 |
| 2026-08-13 | 22K | 46K | 47.1% | 0 |
| 2026-08-12 | 26K | 65K | 39.4% | 0 |
| 2026-08-11 | 24K | 55K | 43.2% | 0 |
| 2026-08-10 | 23K | 50K | 45.6% | 0 |
| 2026-08-07 | 28K | 65K | 42.9% | 0 |
Fails to deliver
SEC, by settlement date. JSONAs of 25 August 2026, the fails-to-deliver balance in IDT is 10 shares, down 26 shares over the last settlement date. Over the last 52 readings it ranged from 1 share (15 January 2026) to 11,964 shares (12 December 2025). The latest reading sits at the bottom of that range.
| Settlement | Shares failed | Price | Value |
|---|---|---|---|
| 2026-08-25 | 10 | $68.29 | $683 |
| 2026-08-03 | 36 | $65.86 | $2K |
| 2026-07-31 | 2,010 | $65.94 | $133K |
| 2026-07-23 | 1,193 | $64.21 | $77K |
| 2026-06-26 | 60 | $55.92 | $3K |
| 2026-06-15 | 663 | $54.63 | $36K |
| 2026-05-22 | 324 | $52.69 | $17K |
| 2026-05-20 | 2 | $53.18 | $106 |
| 2026-04-27 | 18 | $51.79 | $932 |
| 2026-04-10 | 262 | $50.01 | $13K |
| 2026-03-13 | 3,107 | $49.16 | $153K |
| 2026-02-27 | 1,594 | $50.52 | $81K |
| 2026-02-09 | 2,182 | $48.26 | $105K |
| 2026-02-04 | 42 | $47.32 | $2K |
| 2026-01-15 | 1 | $52.05 | $52 |
| 2025-12-12 | 11,964 | $51.06 | $611K |
| 2025-12-11 | 2 | $50.32 | $101 |
| 2025-11-24 | 88 | $49.79 | $4K |
| 2025-10-31 | 191 | $50.70 | $10K |
| 2025-10-10 | 4,647 | $47.60 | $221K |
| 2025-10-03 | 3,228 | $49.90 | $161K |
| 2025-10-01 | 50 | $52.31 | $3K |
| 2025-09-29 | 18 | $62.57 | $1K |
| 2025-09-23 | 8 | $68.30 | $546 |
| 2025-07-02 | 80 | $69.00 | $6K |
| 2025-06-20 | 339 | $66.08 | $22K |
| 2025-06-11 | 881 | $64.86 | $57K |
| 2025-06-09 | 293 | $68.62 | $20K |
| 2025-06-03 | 129 | $60.43 | $8K |
| 2025-05-29 | 1,029 | $61.89 | $64K |
Insider trades
SEC Form 4, newest first, 50 of 100 shown. JSONInsiders at IDT reported 3 open-market sells worth $1.8M in the last 90 days and no open-market buys. Sells alone are a weak signal; insiders sell for tax, diversification and estate reasons all the time. Latest filing: JONAS HOWARD S (Chairman) on 2026-08-31.
| Date | Insider | Title | Type | Shares | Price | Value | Owned after |
|---|---|---|---|---|---|---|---|
| 2026-08-31 | JONAS HOWARD S | Chairman | Gift | 1K | $0.00 | $0 | 45K |
| 2026-07-16 | ASH MENACHEM | EVP of Strategic&Legal Affairs | Sell | 4K | $63.17 | $231K | 24K |
| 2026-07-15 | ASH MENACHEM | EVP of Strategic&Legal Affairs | Sell | 4K | $63.02 | $277K | 28K |
| 2026-06-26 | FISCHER MARCELO | Chief Financial Officer | Sell | 23K | $56.98 | $1.3M | 33K |
| 2026-06-23 | JONAS HOWARD S | Chairman | Gift | 2K | $0.00 | $0 | 47K |
| 2026-06-11 | KATSOF IRWIN | Other | Sell | 2K | $55.03 | $133K | 0 |
| 2026-06-09 | CONKLING WILLIAM | n/a | Grant | 673 | $55.75 | $38K | 673 |
| 2026-06-08 | SHEA NADINE | EVP of GLOBAL HUMAN RESOURCES | Sell | 500 | $55.32 | $28K | 9K |
| 2026-05-07 | JONAS HOWARD S | Chairman | Gift | 8K | $0.00 | $0 | 49K |
| 2026-05-07 | MASON JOYCE J | EVP and Corporate Secretary | Gift | 722 | $0.00 | $0 | 39K |
| 2026-05-05 | JONAS HOWARD S | Chairman | Gift | 1K | $0.00 | $0 | 57K |
| 2026-04-16 | MASON JOYCE J | EVP and Corporate Secretary | Sell | 907 | $50.94 | $46K | 12K |
| 2026-04-16 | MASON JOYCE J | EVP and Corporate Secretary | Sell | 2K | $50.94 | $117K | 38K |
| 2026-04-16 | JONAS HOWARD S | Chairman | Gift | 600 | $0.00 | $0 | 58K |
| 2026-04-14 | FISCHER MARCELO | Chief Financial Officer | Sell | 5K | $50.50 | $253K | 56K |
| 2026-04-14 | ASH MENACHEM | EVP of Strategic&Legal Affairs | Sell | 20K | $51.00 | $1.0M | 32K |
| 2026-02-17 | ASH MENACHEM | EVP of Strategic&Legal Affairs | Tax withholding | 347 | $48.45 | $17K | 52K |
| 2026-02-17 | ASH MENACHEM | EVP of Strategic&Legal Affairs | Option exercise | 834 | $48.45 | $40K | 53K |
| 2026-01-28 | JONAS HOWARD S | Chairman | Gift | 2K | $0.00 | $0 | 58K |
| 2026-01-16 | FISCHER MARCELO | Chief Financial Officer | Option exercise | 5K | $38.43 | $200K | 61K |
| 2026-01-16 | MASON JOYCE J | EVP and Corporate Secretary | Sell | 3K | $50.28 | $126K | 29K |
| 2026-01-15 | FISCHER MARCELO | Chief Financial Officer | Sell | 920 | $52.04 | $48K | 56K |
| 2026-01-15 | PEREIRA BILL | COO & President | Sell | 7K | $51.17 | $373K | 35K |
| 2026-01-14 | FISCHER MARCELO | Chief Financial Officer | Sell | 7K | $52.03 | $365K | 57K |
| 2026-01-08 | FISCHER MARCELO | Chief Financial Officer | Sell | 641 | $52.29 | $34K | 64K |
| 2026-01-05 | KATSOF IRWIN | n/a | Grant | 986 | $50.73 | $50K | 2K |
| 2026-01-05 | SCHORR JUDAH | n/a | Grant | 986 | $50.73 | $50K | 122K |
| 2026-01-05 | COSENTINO ERIC F. | n/a | Grant | 986 | $50.73 | $50K | 1K |
| 2025-12-29 | JONAS HOWARD S | Chairman | J | 97K | $0.00 | $0 | 114K |
| 2025-12-17 | JONAS HOWARD S | Chairman | Gift | 1K | $0.00 | $0 | 61K |
| 2025-11-25 | MASON JOYCE J | EVP and Corporate Secretary | Gift | 1K | $0.00 | $0 | 31K |
| 2025-11-25 | JONAS HOWARD S | Chairman | Gift | 1K | $0.00 | $0 | 62K |
| 2025-10-10 | COSENTINO ERIC F. | n/a | Sell | 200 | $47.61 | $10K | 53 |
| 2025-10-02 | PEREIRA BILL | COO & President | Sell | 42K | $49.63 | $2.1M | 43K |
| 2025-07-17 | JONAS HOWARD S | Chairman | Gift | 7K | $0.00 | $0 | 63K |
| 2025-07-17 | MASON JOYCE J | EVP and Corporate Secretary | Gift | 650 | $0.00 | $0 | 41K |
| 2025-07-15 | JONAS HOWARD S | Chairman | Gift | 1K | $0.00 | $0 | 70K |
| 2025-06-16 | COSENTINO ERIC F. | n/a | Sell | 800 | $67.03 | $54K | 253 |
| 2025-04-28 | ASH MENACHEM | EVP of Strategic&Legal Affairs | Tax withholding | 66 | $48.84 | $3K | 52K |
| 2025-04-28 | ASH MENACHEM | EVP of Strategic&Legal Affairs | Grant | 181 | $48.84 | $9K | 52K |
| 2025-04-28 | MASON JOYCE J | EVP and Corporate Secretary | Grant | 8K | $48.84 | $375K | 30K |
| 2025-03-18 | WARTELL DAVID | CHIEF TECHNOLOGY OFFICER | Sell | 11K | $48.99 | $526K | 0 |
| 2025-02-25 | MASON JOYCE J | EVP and Corporate Secretary | Option exercise | 5K | $49.11 | $221K | 42K |
| 2025-02-25 | MASON JOYCE J | EVP and Corporate Secretary | Tax withholding | 2K | $49.11 | $86K | 40K |
| 2025-02-25 | SILBERMAN MITCH | CAO & Controller | Tax withholding | 2K | $49.11 | $88K | 5K |
| 2025-02-25 | SILBERMAN MITCH | CAO & Controller | Option exercise | 5K | $49.11 | $253K | 6K |
| 2025-02-25 | PEREIRA BILL | COO & President | Tax withholding | 51K | $49.11 | $2.5M | 84K |
| 2025-02-25 | PEREIRA BILL | COO & President | Option exercise | 100K | $49.11 | $4.9M | 136K |
| 2025-02-25 | FISCHER MARCELO | Chief Financial Officer | Option exercise | 56K | $49.11 | $2.8M | 92K |
| 2025-02-25 | FISCHER MARCELO | Chief Financial Officer | Tax withholding | 28K | $49.11 | $1.4M | 65K |
Form 4 filings are due within two business days of the trade. Insiders sell for many reasons that say nothing about the company; open-market buys are the rarer, stronger signal.
Planned sales (Form 144)
Newest first. JSON16 Form 144 notices on file for IDT worth $7.7M at the prices reported; 5 in the last 90 days worth $2.2M. Latest: JONATHAN MASON filed on 2026-07-17 to sell 505 shares ($32K) from 2026-07-17.
| Filed | Seller | Shares | Market value | Of outstanding | Sale from | Broker |
|---|---|---|---|---|---|---|
| 2026-07-17 | JONATHAN MASONSpouse of Affiliate | 505 | $32K | 0.002% | 2026-07-17 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-07-17 | JOYCE MASONOfficer | 3K | $218K | 0.015% | 2026-07-17 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-07-15 | MENACHEM ASHOfficer | 10K | $619K | 0.042% | 2026-07-15 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-06-30 | ERIC COSENTINODirector | 500 | $29K | 0.002% | 2026-06-30 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-06-26 | MARCELO FISCHEROfficer | 23K | $1.3M | 0.100% | 2026-06-26 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-06-11 | IRWIN KATSOFOfficer | 2K | $133K | 0.010% | 2026-06-11 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-06-08 | NADINE M. SHEAOfficer | 500 | $28K | 0.002% | 2026-06-08 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-04-16 | JOYCE MASONOfficer | 2K | $117K | 0.010% | 2026-04-16 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-04-16 | JONATHAN MASONSpouse of Affiliate | 907 | $46K | 0.004% | 2026-04-16 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-04-14 | MARCELO FISCHEROfficer | 5K | $253K | 0.021% | 2026-04-14 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-04-14 | MENACHEM ASHOfficer | 24K | $1.3M | 0.104% | 2026-04-14 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-01-16 | ALEXANDER D MASONMember of affiliate household | 3K | $126K | 0.011% | 2026-01-16 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-01-15 | ABILIO PEREIRAOfficer | 7K | $373K | 0.031% | 2026-01-15 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-01-08 | MARCELO FISCHEROfficer | 21K | $1.1M | 0.090% | 2026-01-08 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2025-10-10 | ERIC COSENTINODirector | 200 | $10K | 0.001% | 2025-10-10 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2025-10-02 | ABILIO PEREIRAOfficer | 42K | $2.1M | 0.177% | 2025-10-02 | Morgan Stanley Smith Barney LLC Executive Financial Services |
Large holders (13D and 13G)
One row per reporting person, newest filing first. JSON1 holder above 5% has filed on IDT, all on Schedule 13G (passive). The largest reported stake is The Vanguard Group at 0.0% of the class (0 shares), filed 2026-03-27 for an event on 2026-03-13.
| Filed | Form | Holder | Shares | Of class | Event |
|---|---|---|---|---|---|
| 2026-03-27 | 13G/Ano. 1 | The Vanguard Groupinvestment adviser | 0 | 0.0% | 2026-03-13 |
13F holders
Tracked managers holding IDT at their latest 13F. JSON7 of the 30 tracked managers held IDT at their latest 13F, $109.4M in total at quarter-end prices. Renaissance Technologies is the largest at $51.1M (0.1% of its portfolio) as of 2026-06-30. Over the prior quarter 2 added shares and 5 cut.
| Fund | Quarter | Shares | Value | Of portfolio | Change in shares |
|---|---|---|---|---|---|
| Renaissance Technologies | 2026-06-30 | 879K | $51.1M | 0.07% | -67K |
| D. E. Shaw & Co. | 2026-06-30 | 296K | $17.2M | 0.01% | +57K |
| AQR Capital Management | 2026-06-30 | 186K | $10.8M | 0.00% | +95K |
| Millennium Management | 2026-06-30 | 168K | $9.8M | 0.00% | -55K |
| Two Sigma Investments | 2026-06-30 | 160K | $9.3M | 0.01% | -20K |
| Citadel Advisors | 2026-06-30 | 121K | $7.1M | 0.00% | -12K |
| Point72 Asset Management | 2026-06-30 | 71K | $4.1M | 0.00% | -39K |
Only the 30 tracked managers on the funds hub; a 13F reports long positions in US listed stock at quarter end, 45 days late, and says nothing about shorts or positions sold since.
What this page is
IDT CORP in the regulatory record
Regulators publish company data in separate files that never sit next to each other: FINRA's twice-monthly short interest, its daily short sale volume, the SEC's fails-to-deliver counts, and each insider's Form 4. A company page pulls every series the site collects for one ticker onto one URL, keyed by the SEC's own ticker list, so the short position, the daily flow, the settlement fails and what insiders are doing can be read together.
Each section has its own history table, a summary sentence built from the rows (last value, change, range with dates) and its own JSON and CSV links. Nothing on the page is written by a model; the sentences change only when the data does. A page exists only for companies with data in at least two series, and every section says when its source last updated.
This page follows IDT CORP (IDT), SEC CIK 1005731, listed on NYSE. The cross-market tables live on the short interest and insider transactions hubs.
Source and method
- Short interest
- FINRA consolidated short interestTwice a month, about eight business days after settlement. Latest 2026-08-31.JSON and CSV
- Daily short volume
- FINRA Reg SHO daily filesEvery trading day, loaded the following morning. Latest 2026-09-18.JSON and CSV
- Fails to deliver
- SEC fails-to-deliver dataTwice a month, a few weeks after the half month ends. Latest 2026-08-25.JSON and CSV
- Planned sales
- SEC EDGAR Form 144EDGAR read every 30 minutes; a notice is filed on or before the sell order. Latest 2026-07-17.JSON and CSV
- Large holders
- SEC EDGAR Schedule 13D and 13GEDGAR read every 30 minutes; 13D within five business days of crossing 5%, 13G on the passive schedule. Latest 2026-03-27.JSON and CSV
- 13F holders
- SEC EDGAR Form 13F-HRQuarterly, filed within 45 days of quarter end; 30 tracked managers. Latest 2026-06-30.JSON and CSV
- Earnings dates
- SEC EDGAR 8-K Item 2.02 (full-text search)EDGAR full-text search read twice a day; the estimate is last year's date plus 52 weeks. Latest 2026-06-03.JSON and CSV
- Insider trades
- SEC EDGAR Form 4EDGAR read every 30 minutes; filings are due two business days after the trade. Latest 2026-08-31.JSON and CSV
- Company record
- EDGAR filing index for CIK 1005731Ticker, name and exchange from the SEC's company list, refreshed weekly.
- Rate limits
- 30 requests a minute without a key, 120 a minute with a key from a free account.
Data checks. Every dataset is checked against its source once a day. This dataset passed the last run, 18 Sep 05:40 UTC.
How to read it
- Read the position against the flow: rising short interest with a high daily short share is new shorting; rising short interest with a normal short share is old shorts holding on.
- Insider buys next to a crowded short are the combination that has historically preceded squeezes; insider sells next to a crowded short are common and mean little.
- Fails to deliver matter relative to the float, not in absolute shares; a million failed shares in a mega cap is noise.
Analysis of what the data shows, not advice. XOOMAR does not recommend buying, selling or holding anything.
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Datasets
Frequently Asked Questions
How much of IDT is sold short?
What is IDT's daily short volume?
Does IDT have fails to deliver?
Are IDT insiders buying or selling?
Have IDT insiders filed to sell?
Who owns more than 5% of IDT?
Which funds hold IDT?
Data on this page is provided for informational purposes only and is not financial advice. See our editorial policy.