istyle Inc. 3660Short Interest
Estimated short interest in istyle Inc. (3660) is 20.68% of shares outstanding as of 2026-09-30. Institutions holding 0.5% or more: 西川 朋希, JPM Securities Japan Co Ltd., MERRILL LYNCH INTERNATIONAL and 6 others.
Estimated short interest
20.68%
▼0.01%
Estimated position (shares)
18,003,512
As of 2026-09-30
Short sellers
25 firms
3165 reports
Short Interest Trend Last 5 years, by institution, % of shares outstanding
Estimated short interest, stacking the latest reported position of each short seller. The 5 largest current holders are shown in color and the rest are grouped as "Others". Hover over (or tap) a bar to see the breakdown.
- 西川 朋希
- JPM Securities Japan Co Ltd.
- MERRILL LYNCH INTERNATIONAL
- Arrowstreet Capital Global Equity Long/Short Fund Limited
- JPMorgan Securities Japan Co., Ltd.
- Others
20.68%
Estimated short interest, 2026-09-30
Others10.05%
JPMorgan Securities Japan Co., Ltd.1.09%
Arrowstreet Capital Global Equity Long/Short Fund Limited1.09%
MERRILL LYNCH INTERNATIONAL1.40%
JPM Securities Japan Co Ltd.1.92%
西川 朋希5.13%
Current Positions by Short Seller Latest report of each holder
| Last report | Short seller | Position (shares) | Ratio | Change | Status |
|---|---|---|---|---|---|
| 2022-08-18 | 西川 朋希 | Position 3,810,000 shares | Ratio 5.13% | ▲5.13% | Holding |
| 2026-09-29 | JPM Securities Japan Co Ltd. | Position 1,976,567 shares | Ratio 1.92% | ▲0.06% | Holding |
| 2026-09-30 | MERRILL LYNCH INTERNATIONAL | Position 1,446,289 shares | Ratio 1.40% | ▼0.01% | Holding |
| 2017-10-26 | JPMorgan Securities Japan Co., Ltd. | Position 721,275 shares | Ratio 1.09% | ▼0.01% | Holding |
| 2024-08-19 | Arrowstreet Capital Global Equity Long/Short Fund Limited | Position 894,400 shares | Ratio 1.09% | ▼0.08% | Holding |
| 2026-09-09 | Barclays Capital Securities Ltd | Position 967,700 shares | Ratio 0.94% | ▼0.17% | Holding |
| 2026-09-25 | Morgan Stanley MUFG Securities Co., Ltd. | Position 783,285 shares | Ratio 0.76% | ▼0.07% | Holding |
| 2026-09-18 | Jane Street Asia Trading Limited | Position 781,568 shares | Ratio 0.76% | ▼0.13% | Holding |
| 2024-07-16 | Arrowstreet International Equity - Alpha Extension Fund | Position 471,700 shares | Ratio 0.57% | ▼0.09% | Holding |
| 2024-07-02 | XTX Markets Pte Ltd | Position 407,200 shares | Ratio 0.49% | ▼0.03% | Below 0.5% |
| 2025-05-29 | Qube Research & Technologies Limited | Position 454,600 shares | Ratio 0.49% | ▼0.02% | Below 0.5% |
| 2026-06-29 | Daiwa Securities Co. Ltd. | Position 511,165 shares | Ratio 0.49% | ▼0.01% | Below 0.5% |
| 2019-09-19 | Deutsche Bank Aktiengesellschaft, London | Position 327,000 shares | Ratio 0.48% | ▼0.02% | Below 0.5% |
| 2026-05-27 | Nomura International plc | Position 502,005 shares | Ratio 0.48% | ▼0.19% | Below 0.5% |
| 2026-03-06 | GOLDMAN SACHS INTERNATIONAL | Position 499,791 shares | Ratio 0.48% | ▼0.06% | Below 0.5% |
| 2024-08-23 | ARROWSTREET CAPITAL GLOBAL EQUITY LONG SHORT FUND LIMITED | Position 396,000 shares | Ratio 0.48% | ▼0.15% | Below 0.5% |
| 2024-12-02 | Campbell Equity Alpha Master Fund LP | Position 387,800 shares | Ratio 0.47% | ▼0.03% | Below 0.5% |
| 2024-10-23 | Integrated Core Strategies (Asia) Pte. Ltd. | Position 382,621 shares | Ratio 0.46% | ▼0.05% | Below 0.5% |
| 2019-06-07 | REGULUS MASTER FUND | Position 307,200 shares | Ratio 0.45% | ▼0.05% | Below 0.5% |
| 2024-07-05 | Segregated Portfolio D | Position 373,800 shares | Ratio 0.45% | ▼0.09% | Below 0.5% |
| 2026-07-02 | UBS AG | Position 432,900 shares | Ratio 0.42% | ▼0.12% | Below 0.5% |
| 2024-08-28 | Arrowstreet Capital, Limited Partnership | Position 335,100 shares | Ratio 0.41% | ▼0.16% | Below 0.5% |
| 2022-10-24 | PDT Partners, LLC | Position 287,000 shares | Ratio 0.36% | ▼0.16% | Below 0.5% |
| 2021-01-25 | Credit Suisse AG | Position 261,400 shares | Ratio 0.35% | ▼0.16% | Below 0.5% |
| 2026-08-17 | Citigroup Global Markets Limited | Position 273,600 shares | Ratio 0.26% | ▼0.32% | Below 0.5% |
| 2019-05-07 | Credit Suisse Securities (Europe) Limited | Position 0 shares | Ratio 0.00% | ▼0.69% | Closed |
| 2026-05-20 | Morgan Stanley & Co. International plc | Position 8,646 shares | Ratio 0.00% | ▼1.95% | Closed |
| 2018-05-07 | Gordian Capital Singapore Private Limited | Position 0 shares | Ratio 0.00% | ▼0.50% | Closed |
| 2024-11-11 | Jefferies International Limited | Position 0 shares | Ratio 0.00% | ▼0.59% | Closed |
| 2022-09-27 | Individual | Position 0 shares | Ratio 0.00% | ▼4.99% | Closed |
| 2023-02-14 | Diversified Select Opportunities Capital Management, LLC | Position 0 shares | Ratio 0.00% | ▼0.52% | Closed |
| 2026-04-23 | J.P. MORGAN SECURITIES PLC | Position 2,900 shares | Ratio 0.00% | ▼1.06% | Closed |
Disclosure History 3165 in total
| Trade date | Short seller | Position (shares) | Ratio | Change | Note |
|---|---|---|---|---|---|
| 2026-09-30 | MERRILL LYNCH INTERNATIONAL | Position 1,446,289 shares | Ratio 1.40% | ▼0.01% | — |
| 2026-09-29 | MERRILL LYNCH INTERNATIONAL | Position 1,455,889 shares | Ratio 1.41% | ▼0.07% | — |
| 2026-09-29 | JPM Securities Japan Co Ltd. | Position 1,976,567 shares | Ratio 1.92% | ▲0.06% | — |
| 2026-09-28 | JPM Securities Japan Co Ltd. | Position 1,915,167 shares | Ratio 1.86% | ▼0.04% | — |
| 2026-09-25 | MERRILL LYNCH INTERNATIONAL | Position 1,524,389 shares | Ratio 1.48% | ▼0.07% | — |
| 2026-09-25 | Morgan Stanley MUFG Securities Co., Ltd. | Position 783,285 shares | Ratio 0.76% | ▼0.07% | — |
| 2026-09-24 | MERRILL LYNCH INTERNATIONAL | Position 1,591,889 shares | Ratio 1.55% | ▼0.06% | — |
| 2026-09-18 | Jane Street Asia Trading Limited | Position 781,568 shares | Ratio 0.76% | ▼0.13% | — |
| 2026-09-18 | MERRILL LYNCH INTERNATIONAL | Position 1,656,089 shares | Ratio 1.61% | ▼0.03% | — |
| 2026-09-17 | MERRILL LYNCH INTERNATIONAL | Position 1,692,789 shares | Ratio 1.64% | ▲0.05% | — |
| 2026-09-16 | MERRILL LYNCH INTERNATIONAL | Position 1,632,389 shares | Ratio 1.59% | ▲0.07% | — |
| 2026-09-16 | JPM Securities Japan Co Ltd. | Position 1,951,867 shares | Ratio 1.90% | ▲0.09% | — |
| 2026-09-16 | Morgan Stanley MUFG Securities Co., Ltd. | Position 854,185 shares | Ratio 0.83% | ▲0.04% | — |
| 2026-09-15 | MERRILL LYNCH INTERNATIONAL | Position 1,563,589 shares | Ratio 1.52% | ▲0.09% | — |
| 2026-09-15 | Morgan Stanley MUFG Securities Co., Ltd. | Position 816,685 shares | Ratio 0.79% | ▼0.02% | — |
| 2026-09-14 | MERRILL LYNCH INTERNATIONAL | Position 1,477,989 shares | Ratio 1.43% | ▲0.11% | — |
| 2026-09-14 | Jane Street Asia Trading Limited | Position 915,068 shares | Ratio 0.89% | ▼0.01% | — |
| 2026-09-14 | Morgan Stanley MUFG Securities Co., Ltd. | Position 839,685 shares | Ratio 0.81% | ▲0.09% | — |
| 2026-09-11 | MERRILL LYNCH INTERNATIONAL | Position 1,358,589 shares | Ratio 1.32% | ▲0.12% | — |
| 2026-09-10 | MERRILL LYNCH INTERNATIONAL | Position 1,234,489 shares | Ratio 1.20% | ▲0.10% | — |
| 2026-09-10 | JPM Securities Japan Co Ltd. | Position 1,863,967 shares | Ratio 1.81% | ▲0.21% | — |
| 2026-09-10 | Jane Street Asia Trading Limited | Position 926,668 shares | Ratio 0.90% | ▲0.17% | — |
| 2026-09-10 | Morgan Stanley MUFG Securities Co., Ltd. | Position 749,085 shares | Ratio 0.72% | ▼0.23% | — |
| 2026-09-09 | MERRILL LYNCH INTERNATIONAL | Position 1,138,589 shares | Ratio 1.10% | ▲0.10% | — |
| 2026-09-09 | Barclays Capital Securities Ltd | Position 967,700 shares | Ratio 0.94% | ▼0.17% | — |
| 2026-09-09 | Morgan Stanley MUFG Securities Co., Ltd. | Position 979,085 shares | Ratio 0.95% | ▼0.12% | — |
| 2026-09-08 | MERRILL LYNCH INTERNATIONAL | Position 1,032,689 shares | Ratio 1.00% | ▲0.12% | — |
| 2026-09-08 | JPM Securities Japan Co Ltd. | Position 1,644,467 shares | Ratio 1.60% | ▲0.10% | — |
| 2026-09-07 | MERRILL LYNCH INTERNATIONAL | Position 911,989 shares | Ratio 0.88% | ▲0.14% | — |
| 2026-09-04 | MERRILL LYNCH INTERNATIONAL | Position 764,589 shares | Ratio 0.74% | ▲0.12% | — |
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