IDT Corporation is a telecommunications services company in the communication services sector on NYSE, with a market cap of $1.3B. As of Q3 2025, 53% of shares are held by 192 institutional investors, with BlackRock, Inc. as the largest holder at 6.77%.
Overview of institutional ownership in IDT as of Q3 2025 with a market cap of $1.3B
Based on market cap of $1.3B as of Q3 2025. Institutional (non-HF) excludes hedge funds to avoid double counting.
Institutions with the largest positions in IDT as of Q3 2025
| Institution | Position Value |
|---|---|
B BlackRock, Inc. Institution | $89.3M 0.00% of portfolio |
VANGUARD GROUP INC Institution | $68.4M 0.00% of portfolio |
RENAISSANCE TECHNOLOGIES LLC Hedge Fund•Quant | $55.1M 0.07% of portfolio |
DIMENSIONAL FUND ADVISORS LP Long Only Manager | $45.1M 0.01% of portfolio |
FIRST TRUST ADVISORS LP ETF Provider | $33.6M 0.03% of portfolio |
STATE STREET CORP Institution | $27.8M 0.00% of portfolio |
GEODE CAPITAL MANAGEMENT LLC ETF Provider | $24.0M 0.00% of portfolio |
ACADIAN ASSET MANAGEMENT LLC Long Only Manager | $20.6M 0.04% of portfolio |
K KAHN BROTHERS & CO INC /DE/ RIA/Wealth | $20.5M 3.55% of portfolio |
DEUTSCHE BANK AG\ Institution | $17.3M 0.01% of portfolio |
Institutional buying and selling activity for IDT in Q3 2025
| Institution | Net Bought |
|---|---|
FIRST TRUST ADVISORS LP ETF Provider | +$16.7M +319.2K shares |
MILLENNIUM MANAGEMENT LLC Hedge Fund•Multi-Strategy | +$11.5M +220.7K shares |
ACADIAN ASSET MANAGEMENT LLC Long Only Manager | +$8.1M +154.0K shares |
JACOBS LEVY EQUITY MANAGEMENT, INC Hedge Fund•Quant | +$7.1M +135.9K shares |
ARROWSTREET CAPITAL LIMITED PARTNERSHIP Hedge Fund•Quant | +$4.7M +89.9K shares |
Q Qube Research & Technologies Ltd Institution | +$3.3M +63.4K shares |
ALGERT COLDIRON INVESTORS LLC Hedge Fund•Quant | +$3.1M +58.9K shares |
S Squarepoint Ops LLC Hedge Fund•Quant | +$2.6M +49.5K shares |
M Man Group plc Institution | +$2.0M +39.2K shares |
+$2.0M +42.5K shares |
| Institution | Net Sold |
|---|---|
D D. E. Shaw & Co., Inc. Institution | −$6.3M −120.1K shares |
Allspring Global Investments Holdings, LLC Long Only Manager | −$6.2M −90.8K shares |
A ALTA FOX CAPITAL MANAGEMENT, LLC Hedge Fund•Long/Short | −$6.0M −88.5K shares |
DIMENSIONAL FUND ADVISORS LP Long Only Manager | −$4.7M −89.1K shares |
J Jump Financial, LLC Institution | −$3.9M −57.0K shares |
TUDOR INVESTMENT CORP ET AL Hedge Fund•Multi-Strategy | −$2.7M −51.1K shares |
B BlackRock, Inc. Institution | −$2.6M −49.1K shares |
RENAISSANCE TECHNOLOGIES LLC Hedge Fund•Quant | −$2.5M −47.3K shares |
GOLDMAN SACHS GROUP INC Institution | −$2.3M −43.8K shares |
R ROYCE & ASSOCIATES LLC Institution | −$2.1M −40.9K shares |
Institutions that initiated new positions or completely exited IDT in Q3 2025
| Institution | Position Value |
|---|---|
P PharVision Advisers, LLC Hedge Fund•Long/Short | $529.5K 10.1K shares |
Moran Wealth Management, LLC RIA/Wealth | $497.5K 9.5K shares |
D DRW Securities, LLC Institution | $490.2K 9.4K shares |
E Employees Retirement System of Texas Institution | $380.3K 7.3K shares |
I INCEPTIONR LLC Hedge Fund•Quant | $245.6K 4.7K shares |
Virtus ETF Advisers LLC Long Only Manager | $169.5K 3.2K shares |
Mirae Asset Global Investments Co., Ltd. Long Only Manager | $135.9K 2.6K shares |
Aster Capital Management Ltd RIA/Wealth | $53.8K 1.0K shares |
S State of Alaska, Department of Revenue Institution | $38.4K 734.0 shares |
SRS Capital Advisors, Inc. RIA/Wealth | $22.2K 424.0 shares |
| Institution | Previous Position |
|---|---|
Allspring Global Investments Holdings, LLC Long Only Manager | $6.2M 90.8K shares |
A ALTA FOX CAPITAL MANAGEMENT, LLC Hedge Fund•Long/Short | $6.0M 88.5K shares |
J Jump Financial, LLC Institution | $3.9M 57.0K shares |
Quantbot Technologies LLC Hedge Fund•Quant | $1.6M 23.8K shares |
Pacific Capital Partners Ltd RIA/Wealth | $1.6M 23.7K shares |
A Assenagon Asset Management S.A. Institution | $1.5M 22.4K shares |
B Brevan Howard Capital Management LP Institution | $1.3M 19.4K shares |
MACKENZIE FINANCIAL CORP Long Only Manager | $706.6K 10.3K shares |
Y Y-Intercept Ltd Institution | $677.5K 9.9K shares |
Aquatic Capital Management LLC Hedge Fund•Quant | $668.0K 9.8K shares |
Institutions with the largest Call and Put options positions in IDT as of Q3 2025
| Institution | Position Value |
|---|---|
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy | $564.9K 108.0 contracts |
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity | $298.2K 57.0 contracts |
W WOLVERINE TRADING, LLC Institution | $243.5K 38.0 contracts |
Walleye Trading LLC RIA/Wealth | - - contracts |
| Institution | Position Value |
|---|---|
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy | $727.1K 139.0 contracts |
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity | $517.9K 99.0 contracts |
Walleye Trading LLC RIA/Wealth | - - contracts |
Institutions with IDT as the highest % of their portfolio as of Q3 2025
| Institution | Portfolio Weight |
|---|---|
K KAHN BROTHERS & CO INC /DE/ RIA/Wealth | 3.55% $20.5M |
Emmett Investment Management, LP Hedge Fund•Long/Short | 1.66% $2.4M |
Semanteon Capital Management, LP Hedge Fund•Long/Short | 0.35% $279.9K |
P PharVision Advisers, LLC Hedge Fund•Long/Short | 0.30% $529.5K |
ALGERT COLDIRON INVESTORS LLC Hedge Fund•Quant | 0.13% $7.9M |
Virtus ETF Advisers LLC Long Only Manager | 0.11% $169.5K |
D Dynamic Technology Lab Private Ltd Institution | 0.11% $642.9K |
PDT Partners, LLC Hedge Fund•Quant | 0.11% $1.7M |
C CSM Advisors, LLC Institution | 0.08% $2.6M |
GSA CAPITAL PARTNERS LLP Hedge Fund•Quant | 0.08% $851.7K |
Discover hedge funds investing in IDT

| Top Holding | Sector | Market Value | Weight |
|---|---|---|---|
ETF ETF | $155.2M | 1.77% | |
ETF ETF | $115.3M | 1.32% | |
REIT - Healthcare Facilities Real Estate | $112.9M | 1.29% |
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