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Mizuho Securities Co. Ltd.

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13F filer, CIK 1520309, TOKYO, Japan

Mizuho Securities Co. Ltd. reported $7,679,553 across 16 holdings for the quarter ended 2026-03-31, in a 13F-HR filed 2026-05-07. Its ten largest share positions make up 98.96% of the portfolio.

Filed (acceptance time not in the bulk data set), ingested 13F-HR 0001520309-26-000002

Period
2026-03-31
Reported value
$7.68M
Holdings
16
Top 10 weight
98.96%
New
7
Sold out
5

Part of the filer group MIZUHO FINANCIAL GROUP INC

How groups are built

Largest buys vs the previous quarter

SecurityShares changeApprox. value
TCOMadded+32,000$1.59M
NVDAadded+880$153K
IAUnew+830$73.2K
MAnew+80$40K
MSFTadded+75$27.8K

Ranked by the share change valued at this quarter's implied price (value over shares in the 13F). A position sold out is valued at the previous quarter's price, its last report.

Largest sells vs the previous quarter

SecurityShares changeApprox. value
CATexited-90-$51.6K
PYPLexited-305-$17.8K
GOOGLreduced-38-$10.9K
ISRGexited-13-$7.36K
ORCLexited-35-$6.82K

Ranked by the share change valued at this quarter's implied price (value over shares in the 13F). A position sold out is valued at the previous quarter's price, its last report.

Holdings, Q1 2026

Share positions as resolved from 13F-HR 0001520309-26-000002, largest first. % of portfolio is the value over $7,679,553, the sum of the share positions whose value is usable for ratios (method).

SecurityHistorySharesValue% of portfolioChangeLatest eventTimeline
TCOMTRIP COM GROUP LTDQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: 63,365 shares; 2025Q4: 66,740 shares; 2026Q1: 98,740 shares 98,740$4.92M64.02%+32,000Timeline
BILIBILIBILI INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: 12,100 shares; 2025Q3: 74,206 shares; 2025Q4: 74,206 shares; 2026Q1: 74,206 shares 74,206$1.67M21.8%0Timeline
BABAALIBABA GROUP HLDG LTDQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: 3,100 shares; 2024Q4: 3,100 shares; 2025Q1: not reported; 2025Q2: 550 shares; 2025Q3: 2,750 shares; 2025Q4: 2,750 shares; 2026Q1: 2,750 shares 2,750$345K4.49%0Timeline
JDJD.COM INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: 9,100 shares; 2025Q3: 9,100 shares; 2025Q4: 9,100 shares; 2026Q1: 9,100 shares 9,100$269K3.5%0Timeline
NVDANVIDIA CORPORATIONQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: 44,610 shares; 2024Q4: 1,210 shares; 2025Q1: 7,280 shares; 2025Q2: 46,780 shares; 2025Q3: 2,840 shares; 2025Q4: 10 shares; 2026Q1: 890 shares 890$155K2.02%+880Timeline
IAUISHARES GOLD TRQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: 2,230 shares; 2025Q3: not reported; 2025Q4: not reported; 2026Q1: 830 shares 830$73.2K0.95%newTimeline
LILI AUTO INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: 3,950 shares; 2025Q3: 3,950 shares; 2025Q4: 3,950 shares; 2026Q1: 3,950 shares 3,950$70.4K0.92%0Timeline
MAMASTERCARD INCORPORATEDQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: 650 shares; 2024Q4: not reported; 2025Q1: 250 shares; 2025Q2: not reported; 2025Q3: not reported; 2025Q4: not reported; 2026Q1: 80 shares 80$40K0.52%newTimeline
MSFTMICROSOFT CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: 2,800 shares; 2024Q4: 420 shares; 2025Q1: 340 shares; 2025Q2: 2,920 shares; 2025Q3: 20 shares; 2025Q4: 15 shares; 2026Q1: 90 shares 90$33.3K0.43%+75Timeline
AMZNAMAZON COM INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: 5,320 shares; 2024Q4: 380 shares; 2025Q1: 2,760 shares; 2025Q2: 2,930 shares; 2025Q3: 605 shares; 2025Q4: not reported; 2026Q1: 110 shares 110$22.9K0.3%newTimeline
TAT&T INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: 5,090 shares; 2024Q4: 300 shares; 2025Q1: 1,650 shares; 2025Q2: not reported; 2025Q3: not reported; 2025Q4: not reported; 2026Q1: 780 shares 780$22.6K0.29%newTimeline
ALBALBEMARLE CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: 1,390 shares; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: not reported; 2025Q4: not reported; 2026Q1: 100 shares 100$18K0.23%newTimeline
METAMETA PLATFORMS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: 2,380 shares; 2024Q4: 10 shares; 2025Q1: 710 shares; 2025Q2: 480 shares; 2025Q3: 168 shares; 2025Q4: not reported; 2026Q1: 25 shares 25$14.3K0.19%newTimeline
GOOGLALPHABET INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: 9,040 shares; 2024Q4: 2,340 shares; 2025Q1: 390 shares; 2025Q2: 1,660 shares; 2025Q3: 960 shares; 2025Q4: 78 shares; 2026Q1: 40 shares 40$11.5K0.15%-38Timeline
UMCUNITED MICROELECTRONICS CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: 29,335 shares; 2024Q4: 53,335 shares; 2025Q1: not reported; 2025Q2: 501 shares; 2025Q3: 782 shares; 2025Q4: 782 shares; 2026Q1: 782 shares 782$7.02K0.09%0Timeline
TSLATESLA INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: 12,060 shares; 2024Q4: 80 shares; 2025Q1: 4,010 shares; 2025Q2: 2,970 shares; 2025Q3: 1,680 shares; 2025Q4: not reported; 2026Q1: 18 shares 18$6.69K0.09%newTimeline

Sold out in Q1 2026

Positions in the previous quarter's report that this quarter's report no longer lists.

SecurityShares beforeValue beforeType
CATCATERPILLAR INC90$51.6Kshares
PYPLPAYPAL HLDGS INC305$17.8Kshares
ISRGINTUITIVE SURGICAL INC13$7.36Kshares
ORCLORACLE CORP35$6.82Kshares
PFEPFIZER INC200$4.98Kshares

How Q1 2026 was built

Available 13F filings of this filer for the quarter and their roles: the base report is the latest original or restatement, NEW HOLDINGS amendments filed after it are added (method).

FilingRoleAmendmentFiledAcceptedIngested
13F-HR 0001520309-26-000002 base2026-05-07acceptance time not in the bulk data set