MIZUHO SECURITIES CO LTD
Q3 2026 Form 13-F
TOKYO
CIK 0001520309
· Institutional investment manager
Holdings reported by
Rakuten Securities Inc since Q1 2024
, Mizuho Financial Group Inc since Q2 2026
$4.0M Reported Value Total
Reported value
$4.0M
Quarter over quarter
-27.3%
Holdings
19
Top-10 concentration
86.2%
Filing Structure
Reports holdings for
- Mizuho Financial Group Inc · File #028-14124 · Q1 2024 – Q3 2025 · declared by one filing
Holdings reported by
- Rakuten Securities Inc · since Q1 2024
- Mizuho Financial Group Inc · since Q2 2026 · declared by one filing
- PayPay Securities Corp · Q1 2024 – Q1 2026 · declared by one filing
- PPSC Investment Service Corp · Q1 2024 – Q1 2026 · declared by one filing
Key People
Named on the latest Form 13-F filing — not necessarily an owner
Toru Udagawa
Director of Market Product Process Control Department
Filing Navigation
13F Metrics
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Q3 2026 13F record
Q3 2026 13F filing summary
| Period of report | September 30, 2026 |
|---|---|
| Filed | November 03, 2026 |
| Form | 13F-HR |
| Reported value | $4.0M |
| Positions | 19 |
| Change in reported value | -48.2% |
| New positions | 13 |
| Exited positions | 10 |
| Position turnover | 79.3% |
| Top-10 concentration | 86.2% |
13F filings by quarter
| Quarter | Positions | Value |
|---|---|---|
|
Q3 2026 13F
Filed Nov 3, 2026
|
19 | $4.0M |
|
Q1 2026 13F
Filed May 7, 2026
|
16 | $7.7M |
|
Q4 2025 13F
Filed Jan 30, 2026
|
14 | $7.5M |
|
Q3 2025 13F
Filed Oct 30, 2025
|
43 | $14.6M |
|
Q2 2025 13F
Filed Aug 12, 2025
|
49 | $27.7M |
|
Q1 2025 13F
Filed Apr 22, 2025
|
50 | $8.4M |
|
Q4 2024 13F
Filed Feb 12, 2025
|
45 | $6.6M |
|
Q3 2024 13F
Filed Nov 6, 2024
|
78 | $40.6M |
|
Q2 2024 13F
Filed Aug 1, 2024
|
82 | $43.0M |
|
Q1 2024 13F
Filed May 2, 2024
|
58 | $18.2M |
|
Q4 2023 13F
Filed Feb 2, 2024
|
74 | $27.9M |
|
Q3 2023 13F
Filed Nov 1, 2023
|
66 | $21.4M |
|
Q2 2023 13F
Filed Aug 1, 2023
|
78 | $44.4M |
|
Q1 2023 13F
Filed Apr 25, 2023
|
72 | $32.1M |
|
Q4 2022 13F
Filed Feb 7, 2023
|
87 | $36.0M |
|
Q3 2022 13F
Filed Oct 28, 2022
|
185 | $295.2M |
|
Q2 2022 13F
Filed Jul 21, 2022
|
197 | $519.6M |
|
Q1 2022 13F
Filed Apr 15, 2022
|
194 | $459.9M |
|
Q4 2021 13F
Filed Feb 4, 2022
|
194 | $277.9M |
12 earlier quarters on file — choose one from the quarter menu above.
Top 19 holdings · Q3 2026
| # | Holding | Reported value | % of portfolio |
|---|---|---|---|
| 1 | BILI BILIBILI INC | $1.1M | 28.01% |
| 2 | ASX ASE TECHNOLOGY HLDG CO LTD | $456.1K | 11.46% |
| 3 | ARM ARM HOLDINGS PLC | $422.9K | 10.63% |
| 4 | ISRG INTUITIVE SURGICAL INC | $325.3K | 8.18% |
| 5 | BABA ALIBABA GROUP HLDG LTD | $295.7K | 7.43% |
| 6 | JD JD.COM INC | $242.1K | 6.08% |
| 7 | CHT CHUNGHWA TELECOM CO LTD | $209.9K | 5.27% |
| 8 | SPCX SPACE EXPLORATION TECHN CORP | $126.7K | 3.18% |
| 9 | AMZN AMAZON COM INC | $119.6K | 3.01% |
| 10 | DIS DISNEY WALT CO | $115.4K | 2.9% |
| 11 | ILMN ILLUMINA INC | $106.7K | 2.68% |
| 12 | AAPL APPLE INC | $106.6K | 2.68% |
| 13 | META META PLATFORMS INC | $101.5K | 2.55% |
| 14 | JNJ JOHNSON & JOHNSON | $79.4K | 2.0% |
| 15 | ANET ARISTA NETWORKS INC | $61.1K | 1.53% |
| 16 | LI LI AUTO INC | $44.9K | 1.13% |
| 17 | QCOM QUALCOMM INC | $35.0K | 0.88% |
| 18 | PYPL PAYPAL HLDGS INC | $12.1K | 0.3% |
| 19 | DASH DOORDASH INC | $3.7K | 0.09% |
Values as reported on the Q3 2026 Form 13F. Every position is in the holdings table below.