SAMCO INC. 6387Short Interest

Estimated short interest in SAMCO INC. (6387) is 8.39% of shares outstanding as of 2026-09-30. Institutions holding 0.5% or more: GOLDMAN SACHS INTERNATIONAL, Nomura International plc, Jane Street Asia Trading Limited and 1 others.

Prime Market (Domestic) Machinery Machinery TOPIX Small 2
Estimated short interest
8.3900%
▼0.1100%
Estimated position (shares)
681,601
As of 2026-09-30
Short sellers
15 firms
1131 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.

  • GOLDMAN SACHS INTERNATIONAL
  • Nomura International plc
  • Jane Street Asia Trading Limited
  • Morgan Stanley MUFG Securities Co., Ltd.
  • Arrowstreet ACWI ex US Alpha Extension Trust Fund U
  • Others
8.3900%
Estimated short interest, 2026-09-30
Others3.98%
Arrowstreet ACWI ex US Alpha Extension Trust Fund U0.49%
Morgan Stanley MUFG Securities Co., Ltd.0.58%
Jane Street Asia Trading Limited0.69%
Nomura International plc0.96%
GOLDMAN SACHS INTERNATIONAL1.69%

Current Positions by Short Seller Latest report of each holder

Last report Short seller Position (shares) Ratio Change Status
2026-09-30 GOLDMAN SACHS INTERNATIONAL Position 136,411 shares Ratio 1.6900% ▼0.1101% Holding
2026-09-28 Nomura International plc Position 77,735 shares Ratio 0.9600% ▼0.0501% Holding
2026-09-29 Jane Street Asia Trading Limited Position 56,263 shares Ratio 0.6900% ▼0.1001% Holding
2026-09-28 Morgan Stanley MUFG Securities Co., Ltd. Position 47,321 shares Ratio 0.5800% ▼0.0901% Holding
2024-05-07 Arrowstreet ACWI ex US Alpha Extension Trust Fund U Position 40,000 shares Ratio 0.4900% ▼0.0800% Below 0.5%
2024-03-19 BNP Paribas Financial Markets SNC formerly known as BNP Paribas Arbitrage SNC Position 39,800 shares Ratio 0.4900% ▼0.0101% Below 0.5%
2026-08-21 JPM Securities Japan Co Ltd. Position 39,236 shares Ratio 0.4800% ▼0.0201% Below 0.5%
2022-06-21 Credit Suisse AG Position 39,000 shares Ratio 0.4800% ▼0.1000% Below 0.5%
2024-11-05 UBS AG Position 38,352 shares Ratio 0.4700% ▼0.0301% Below 0.5%
2023-12-22 MERRILL LYNCH INTERNATIONAL Position 37,715 shares Ratio 0.4600% ▼0.0500% Below 0.5%
2026-09-25 Citigroup Global Markets Limited Position 36,400 shares Ratio 0.4500% ▼0.0801% Below 0.5%
2024-06-18 Segregated Portfolio D Position 33,400 shares Ratio 0.4100% ▼0.1800% Below 0.5%
2026-06-01 Barclays Capital Securities Ltd Position 32,473 shares Ratio 0.4000% ▼0.1800% Below 0.5%
2024-12-20 Integrated Core Strategies (Asia) Pte. Ltd. Position 24,995 shares Ratio 0.3100% ▼0.2100% Below 0.5%
2020-11-13 Deutsche Bank Aktiengesellschaft, London Position 2,500 shares Ratio 0.0300% ▼0.4700% Below 0.5%

Disclosure History 1131 in total

Trade date Short seller Position (shares) Ratio Change Note
2026-09-30 GOLDMAN SACHS INTERNATIONAL Position 136,411 shares Ratio 1.6900% ▼0.1101% —
2026-09-29 Jane Street Asia Trading Limited Position 56,263 shares Ratio 0.6900% ▼0.1001% —
2026-09-29 GOLDMAN SACHS INTERNATIONAL Position 145,511 shares Ratio 1.8000% ▲0.0400% —
2026-09-28 Nomura International plc Position 77,735 shares Ratio 0.9600% ▼0.0501% —
2026-09-28 Jane Street Asia Trading Limited Position 63,863 shares Ratio 0.7900% ▼0.0201% —
2026-09-28 Morgan Stanley MUFG Securities Co., Ltd. Position 47,321 shares Ratio 0.5800% ▼0.0901% —
2026-09-25 Nomura International plc Position 81,474 shares Ratio 1.0100% ▲0.1099% —
2026-09-25 GOLDMAN SACHS INTERNATIONAL Position 141,911 shares Ratio 1.7600% ▼0.1001% —
2026-09-25 Citigroup Global Markets Limited Position 36,400 shares Ratio 0.4500% ▼0.0801% Below 0.5%
2026-09-25 Morgan Stanley MUFG Securities Co., Ltd. Position 54,121 shares Ratio 0.6700% ▼0.0500% —
2026-09-24 Nomura International plc Position 72,797 shares Ratio 0.9000% ▲0.0500% —
2026-09-24 Jane Street Asia Trading Limited Position 65,463 shares Ratio 0.8100% ▲0.1700% —
2026-09-24 GOLDMAN SACHS INTERNATIONAL Position 150,311 shares Ratio 1.8600% ▼0.0800% —
2026-09-24 Morgan Stanley MUFG Securities Co., Ltd. Position 58,121 shares Ratio 0.7200% ▼0.2300% —
2026-09-18 Nomura International plc Position 68,647 shares Ratio 0.8500% ▲0.5000% —
2026-09-18 Jane Street Asia Trading Limited Position 51,763 shares Ratio 0.6400% ▲0.2400% —
2026-09-18 GOLDMAN SACHS INTERNATIONAL Position 156,813 shares Ratio 1.9400% ▲0.2900% —
2026-09-17 Morgan Stanley MUFG Securities Co., Ltd. Position 76,421 shares Ratio 0.9500% ▼0.1101% —
2026-09-17 GOLDMAN SACHS INTERNATIONAL Position 133,113 shares Ratio 1.6500% ▲0.1999% —
2026-09-16 GOLDMAN SACHS INTERNATIONAL Position 116,713 shares Ratio 1.4500% ▲0.0799% —
2026-09-16 Citigroup Global Markets Limited Position 43,100 shares Ratio 0.5300% ▲0.1500% —
2026-09-16 Morgan Stanley MUFG Securities Co., Ltd. Position 85,721 shares Ratio 1.0600% ▼0.1600% —
2026-09-15 GOLDMAN SACHS INTERNATIONAL Position 110,813 shares Ratio 1.3700% ▲0.2100% —
2026-09-15 Morgan Stanley MUFG Securities Co., Ltd. Position 98,921 shares Ratio 1.2200% ▼0.1900% —
2026-09-14 GOLDMAN SACHS INTERNATIONAL Position 93,927 shares Ratio 1.1600% ▲0.2499% —
2026-09-11 Morgan Stanley MUFG Securities Co., Ltd. Position 113,921 shares Ratio 1.4100% ▲0.1999% —
2026-09-10 Morgan Stanley MUFG Securities Co., Ltd. Position 97,701 shares Ratio 1.2100% ▲0.0500% —
2026-09-09 GOLDMAN SACHS INTERNATIONAL Position 73,466 shares Ratio 0.9100% ▲0.0200% —
2026-09-08 GOLDMAN SACHS INTERNATIONAL Position 72,166 shares Ratio 0.8900% ▼0.0201% —
2026-09-07 GOLDMAN SACHS INTERNATIONAL Position 73,966 shares Ratio 0.9100% ▲0.2000% —

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