Mizuho Securities Co. Ltd. reported 19 positions worth $3.98M for the quarter ended Sep 30, 2026. Its largest holding is Bilibili Inc. at 28% of the portfolio.
Reported 13F market value at each quarter end. A change mixes trading with price moves in the positions held.
Dollar value of shares bought and sold each quarter, at that quarter’s price. It counts trading only, not price changes.
How many positions were opened, added to, trimmed or closed each quarter.
Share of reported value in each sector at every quarter end.
| # | Activity | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | BILI Bilibili Inc. | Technology | 74.2K | $1.11M | 28.01% | – | – | – | 0.01% |
| 2 | ASX ASE Technology Holding Co., Ltd. | Technology | 10.3K | $456.12K | 11.46% | – | – | – | 0% |
| 3 | ARM Arm Holdings Plc | Technology | 1,460 | $422.90K | 10.63% | – | – | – | 0% |
| 4 | ISRG Intuitive Surgical Inc | Healthcare | 800 | $325.30K | 8.18% | – | – | – | 0% |
| 5 | BABA Alibaba Group Holding Ltd | Technology | 2,750 | $295.74K | 7.43% | – | – | – | 0% |
| 6 | JD JD.com, Inc. | Consumer Discretionary | 9,100 | $242.06K | 6.08% | – | – | – | 0% |
| 7 | CHT Chunghwa Telecom Co Ltd | Communication Services | 4,615 | $209.89K | 5.27% | – | – | – | 0% |
| 8 | SPCX Space Exploration Technologies Corp | Industrials | 840 | $126.72K | 3.18% | – | – | – | 0% |
| 9 | AMZN Amazon Com Inc | Consumer Discretionary | 480 | $119.59K | 3.01% | – | – | – | 0% |
| 10 | DIS Walt Disney Co | Communication Services | 1,100 | $115.39K | 2.9% | – | – | – | 0% |
| 11 | ILMN Illumina, Inc. | Healthcare | 390 | $106.74K | 2.68% | – | – | – | 0% |
| 12 | AAPL Apple Inc. | Technology | 320 | $106.57K | 2.68% | – | – | – | 0% |
| 13 | META Meta Platforms, Inc. | Technology | 140 | $101.53K | 2.55% | – | – | – | 0% |
| 14 | JNJ Johnson & Johnson | Healthcare | 300 | $79.42K | 2% | – | – | – | 0% |
| 15 | ANET Arista Networks, Inc. | Technology | 300 | $61.08K | 1.53% | – | – | – | 0% |
Tip. Select a row to see that position’s full history at Mizuho Securities.
As of its Q3 2026 13F filing, Mizuho Securities Co. Ltd.’s five largest positions were Bilibili Inc. (BILI) at 28.0%, ASE Technology Holding Co., Ltd. (ASX) at 11.5%, Arm Holdings Plc (ARM) at 10.6%, Intuitive Surgical Inc (ISRG) at 8.2%, Alibaba Group Holding Ltd (BABA) at 7.4% of the reported portfolio.
Mizuho Securities Co. Ltd. reported a 13F portfolio worth $3.98M across 19 positions for Q3 2026.
From the Form 13F-HR reports Mizuho Securities Co. Ltd. files with the SEC each quarter, within 45 days of quarter end. A 13F lists long positions in US-listed equities and options; it excludes short positions, cash, bonds and most non-US holdings.
13F data reflects long positions in US-listed equities and options as reported to the SEC up to 45 days after quarter end. It excludes short positions, cash, bonds and most non-US securities, so it is not a complete picture of a manager’s assets.