Q1 2026 13F · SEC CIK 1520309
Mizuho Securities Co. Ltd.
Broker-dealerFiled 2026-05-07 for Q1 2026. Open the filing ↗ · All SEC filings ↗
- Reported 13F value
- $7.7M
- Reported positions
- 16
- Top holdings a year, 3 yrs
- +14.1%
- Average holding period
- 4 qtrs
Mizuho Securities Co. Ltd. is a broker-dealer that reported 16 positions worth $7.7M in its Q1 2026 13F, filed 2026-05-07. Its largest holdings were Trip Com Group Ltd (TCOM, 64.0%), Bilibili Inc (BILI, 21.8%), Alibaba Group Hldg Ltd (BABA, 4.5%). A portfolio copying its top holdings returned 14.1% a year over the last 3 years, against 20.4% for the S&P 500.
Mizuho Securities Co. Ltd. holdings all 16 positions.
Weights are shares of the filer's total reported 13F value, compared with Q4 2025. Share changes may reflect splits; weight changes also reflect price moves. A 13F shows long US-listed positions only, up to 135 days after the fact.
| Stock | % of 13F value | Share change | Reported value |
|---|---|---|---|
| TCOMTrip Com Group Ltd | 64.0% | +47.9% | $4.9M |
| BILIBilibili Inc | 21.8% | +0.0% | $1.7M |
| BABAAlibaba Group Hldg Ltd | 4.5% | +0.0% | $345K |
| JDJd.com Inc | 3.5% | +0.0% | $269K |
| NVDANvidia Corporation | 2.0% | +8800.0% | $155K |
| IAUIshares Gold Tr | 1.0% | — | $73K |
| LILi Auto Inc | 0.9% | +0.0% | $70K |
| MAMastercard Incorporated | 0.5% | — | $40K |
| MSFTMicrosoft Corp | 0.4% | +500.0% | $33K |
| AMZNAmazon Com Inc | 0.3% | — | $23K |
| TAt&t Inc | 0.3% | — | $23K |
| ALBAlbemarle Corp | 0.2% | — | $18K |
| METAMeta Platforms Inc | 0.2% | — | $14K |
| GOOGLAlphabet Inc | 0.1% | -48.7% | $12K |
| UMCUnited Microelectronics Corp | 0.1% | +0.0% | $7K |
| TSLATesla Inc | 0.1% | — | $7K |
What Mizuho Securities Co. Ltd. bought and sold in Q1 2026, against Q4 2025.
New positions
- IAU Ishares Gold Tr1.0% of 13F
- MA Mastercard Incorporated0.5% of 13F
- AMZN Amazon Com Inc0.3% of 13F
- T At&t Inc0.3% of 13F
- ALB Albemarle Corp0.2% of 13F
- META Meta Platforms Inc0.2% of 13F
- TSLA Tesla Inc0.1% of 13F
Added to
- NVDA Nvidia Corporation+8800.0% shares
- MSFT Microsoft Corp+500.0% shares
- TCOM Trip Com Group Ltd+47.9% shares
Reduced
- GOOGL Alphabet Inc-48.7% shares
Sold out
- CAT Caterpillar Incwas 0.7%
- PYPL Paypal Hldgs Incwas 0.2%
- ISRG Intuitive Surgical Incwas 0.1%
- ORCL Oracle Corpwas 0.1%
- PFE Pfizer Incwas 0.1%
Share counts compared with the Q4 2025 13F; a split also changes share counts.
How the holdings did against the S&P 500.
- 1 year
- -20.2% /yr
- S&P 500 +20.1%
- 3 years
- +14.1% /yr
- S&P 500 +20.4%
- 5 years
- -4.3% /yr
- S&P 500 +11.6%
A portfolio of the filer's 20 largest 13F positions, weighted by value, bought the trading day after each 13F was filed and held until the next one was: what copying this filer could have earned. 13Fs show long US-listed positions only, so this is an estimate of the stock picks, not the fund's reported returns.
Reported 13F value by quarter.
| Quarter | 13F value | Positions |
|---|---|---|
| Q1 2026 | $7.7M | 16 |
| Q4 2025 | $7.5M | 14 |
| Q3 2025 | $14.6M | 43 |
| Q2 2025 | $27.7M | 49 |
| Q1 2025 | $8.4M | 50 |
| Q4 2024 | $6.6M | 45 |
| Q3 2024 | $40.6M | 78 |
| Q2 2024 | $43.0M | 82 |
| Q1 2024 | $18.2M | 58 |
| Q4 2023 | $27.9M | 74 |
| Q3 2023 | $21.4M | 66 |
| Q2 2023 | $44.4M | 78 |
Questions about Mizuho Securities Co. Ltd.'s portfolio
What stocks does Mizuho Securities Co. Ltd. own?
Mizuho Securities Co. Ltd.'s latest 13F, for Q1 2026 and filed May 7, 2026, lists 16 positions worth $7.7M. The largest are Trip Com Group Ltd (TCOM) at 64.0%, Bilibili Inc (BILI) at 21.8%, Alibaba Group Hldg Ltd (BABA) at 4.5%, Jd.com Inc (JD) at 3.5% and Nvidia Corporation (NVDA) at 2.0%.
What did Mizuho Securities Co. Ltd. buy last quarter?
In Q1 2026, Mizuho Securities Co. Ltd. added a new position in Ishares Gold Tr (IAU), a new position in Mastercard Incorporated (MA), a new position in Amazon Com Inc (AMZN), a new position in At&t Inc (T), a new position in Albemarle Corp (ALB), Nvidia Corporation (NVDA) (+8800.0% shares), Microsoft Corp (MSFT) (+500.0% shares) and Trip Com Group Ltd (TCOM) (+47.9% shares), compared with its Q4 2025 filing.
What did Mizuho Securities Co. Ltd. sell last quarter?
In Q1 2026, Mizuho Securities Co. Ltd. sold all of Caterpillar Inc (CAT), sold all of Paypal Hldgs Inc (PYPL), sold all of Intuitive Surgical Inc (ISRG), sold all of Oracle Corp (ORCL), sold all of Pfizer Inc (PFE) and Alphabet Inc (GOOGL) (-48.7% shares), compared with its Q4 2025 filing.
How has Mizuho Securities Co. Ltd.'s portfolio performed?
A portfolio copying Mizuho Securities Co. Ltd.'s 20 largest 13F holdings each quarter, from the day each filing was public, returned +14.1% a year over the last 3 years, against +20.4% for the S&P 500. Over 1 year: -20.2% against +20.1%. Over 5 years: -4.3% a year against +11.6%.
When is Mizuho Securities Co. Ltd.'s next 13F filing due?
13F filings are due 45 days after each quarter ends. Mizuho Securities Co. Ltd.'s filing for the quarter ending Jun 30, 2026 was due by Aug 14, 2026; this page updates once it is processed.