Writeup Co.,Ltd. 6580Short Interest
Estimated short interest in Writeup Co.,Ltd. (6580) is 6.18% of shares outstanding as of 2026-09-29. Institutions holding 0.5% or more: Barclays Capital Securities Ltd, JPM Securities Japan Co Ltd.
Estimated short interest
6.1800%
▲0.0300%
Estimated position (shares)
332,192
As of 2026-09-29
Short sellers
14 firms
1113 reports
Short Interest Trend 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.
- Barclays Capital Securities Ltd
- JPM Securities Japan Co Ltd.
- MERRILL LYNCH INTERNATIONAL
- Individual
- Morgan Stanley MUFG Securities Co., Ltd.
- Others
6.1800%
Estimated short interest, 2026-09-29
Others3.36%
Morgan Stanley MUFG Securities Co., Ltd.0.45%
Individual0.47%
MERRILL LYNCH INTERNATIONAL0.48%
JPM Securities Japan Co Ltd.0.62%
Barclays Capital Securities Ltd0.80%
Current Positions by Short Seller Latest report of each holder
| Last report | Short seller | Position (shares) | Ratio | Change | Status |
|---|---|---|---|---|---|
| 2026-09-15 | Barclays Capital Securities Ltd | Position 46,700 shares | Ratio 0.8000% | ▲0.0200% | Holding |
| 2026-09-29 | JPM Securities Japan Co Ltd. | Position 36,000 shares | Ratio 0.6200% | ▲0.0300% | Holding |
| 2023-05-17 | MERRILL LYNCH INTERNATIONAL | Position 28,400 shares | Ratio 0.4800% | ▼0.0501% | Below 0.5% |
| 2025-11-25 | Individual | Position 27,800 shares | Ratio 0.4700% | ▼0.0801% | Below 0.5% |
| 2025-02-17 | Morgan Stanley MUFG Securities Co., Ltd. | Position 26,700 shares | Ratio 0.4500% | ▼0.0600% | Below 0.5% |
| 2021-09-01 | Deutsche Bank Aktiengesellschaft, London | Position 26,600 shares | Ratio 0.4500% | ▼0.1400% | Below 0.5% |
| 2026-08-17 | Barclays Bank PLC | Position 26,400 shares | Ratio 0.4500% | ▼0.1400% | Below 0.5% |
| 2022-11-29 | UBS AG | Position 25,100 shares | Ratio 0.4300% | ▼0.1500% | Below 0.5% |
| 2022-10-14 | Credit Suisse AG | Position 24,600 shares | Ratio 0.4200% | ▼0.7800% | Below 0.5% |
| 2019-11-22 | Credit Suisse Securities (Europe) Limited | Position 11,100 shares | Ratio 0.3800% | ▼0.3500% | Below 0.5% |
| 2019-11-28 | Citigroup Global Markets Limited | Position 10,900 shares | Ratio 0.3700% | ▼0.2200% | Below 0.5% |
| 2026-05-27 | Nomura International plc | Position 19,100 shares | Ratio 0.3200% | ▼0.2800% | Below 0.5% |
| 2019-12-03 | Credit Suisse Securities (Japan) Limited | Position 9,100 shares | Ratio 0.3100% | ▼0.2600% | Below 0.5% |
| 2026-02-17 | GOLDMAN SACHS INTERNATIONAL | Position 13,692 shares | Ratio 0.2300% | ▼0.2700% | Below 0.5% |
| 2019-12-27 | J.P. MORGAN SECURITIES PLC | Position 0 shares | Ratio 0.0000% | ▼1.3300% | Closed |
Disclosure History 1113 in total
| Trade date | Short seller | Position (shares) | Ratio | Change | Note |
|---|---|---|---|---|---|
| 2026-09-29 | JPM Securities Japan Co Ltd. | Position 36,000 shares | Ratio 0.6200% | ▲0.0300% | — |
| 2026-09-24 | JPM Securities Japan Co Ltd. | Position 34,400 shares | Ratio 0.5900% | ▼0.0701% | — |
| 2026-09-15 | Barclays Capital Securities Ltd | Position 46,700 shares | Ratio 0.8000% | ▲0.0200% | — |
| 2026-09-09 | Barclays Capital Securities Ltd | Position 45,400 shares | Ratio 0.7800% | ▼0.1000% | — |
| 2026-08-27 | JPM Securities Japan Co Ltd. | Position 38,700 shares | Ratio 0.6600% | ▼0.2100% | — |
| 2026-08-26 | Barclays Capital Securities Ltd | Position 51,600 shares | Ratio 0.8800% | ▼0.1000% | — |
| 2026-08-25 | JPM Securities Japan Co Ltd. | Position 50,700 shares | Ratio 0.8700% | ▼0.1100% | — |
| 2026-08-21 | Barclays Capital Securities Ltd | Position 57,400 shares | Ratio 0.9800% | ▼0.0901% | — |
| 2026-08-17 | Barclays Bank PLC | Position 26,400 shares | Ratio 0.4500% | ▼0.1400% | Below 0.5% |
| 2026-08-14 | Barclays Capital Securities Ltd | Position 62,200 shares | Ratio 1.0700% | ▼0.1100% | — |
| 2026-08-10 | Barclays Capital Securities Ltd | Position 68,900 shares | Ratio 1.1800% | ▼0.0901% | — |
| 2026-08-07 | Barclays Capital Securities Ltd | Position 73,800 shares | Ratio 1.2700% | ▼0.1200% | — |
| 2026-08-04 | Barclays Bank PLC | Position 34,700 shares | Ratio 0.5900% | ▼0.1000% | — |
| 2026-08-03 | Barclays Capital Securities Ltd | Position 80,800 shares | Ratio 1.3900% | ▼0.0801% | — |
| 2026-07-29 | Barclays Capital Securities Ltd | Position 85,600 shares | Ratio 1.4700% | ▼0.0301% | — |
| 2026-07-28 | Barclays Capital Securities Ltd | Position 87,300 shares | Ratio 1.5000% | ▲0.0100% | — |
| 2026-07-27 | Barclays Capital Securities Ltd | Position 86,700 shares | Ratio 1.4900% | ▼0.0201% | — |
| 2026-07-22 | Barclays Bank PLC | Position 40,500 shares | Ratio 0.6900% | ▼0.0201% | — |
| 2026-07-16 | Barclays Capital Securities Ltd | Position 87,700 shares | Ratio 1.5100% | ▲0.0800% | — |
| 2026-07-13 | Barclays Capital Securities Ltd | Position 83,191 shares | Ratio 1.4300% | ▲0.1099% | — |
| 2026-07-06 | Barclays Capital Securities Ltd | Position 77,054 shares | Ratio 1.3200% | ▲0.0400% | — |
| 2026-06-30 | Barclays Capital Securities Ltd | Position 74,600 shares | Ratio 1.2800% | ▼0.0301% | — |
| 2026-06-29 | JPM Securities Japan Co Ltd. | Position 56,900 shares | Ratio 0.9800% | ▼0.0301% | — |
| 2026-06-25 | JPM Securities Japan Co Ltd. | Position 58,700 shares | Ratio 1.0100% | ▲0.0600% | — |
| 2026-06-23 | Barclays Bank PLC | Position 41,400 shares | Ratio 0.7100% | ▲0.0999% | — |
| 2026-06-22 | JPM Securities Japan Co Ltd. | Position 55,600 shares | Ratio 0.9500% | ▲0.0799% | — |
| 2026-06-19 | JPM Securities Japan Co Ltd. | Position 50,800 shares | Ratio 0.8700% | ▼0.0501% | — |
| 2026-06-18 | JPM Securities Japan Co Ltd. | Position 53,600 shares | Ratio 0.9200% | ▲0.0600% | — |
| 2026-06-18 | Barclays Bank PLC | Position 35,700 shares | Ratio 0.6100% | ▲0.1099% | — |
| 2026-06-16 | JPM Securities Japan Co Ltd. | Position 50,300 shares | Ratio 0.8600% | ▼0.0601% | — |
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