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Rakuten Securities, Inc.

SEC CIK
0002009539
Latest filing
Aug 11, 2026

The latest 13F from Rakuten Securities, Inc. covers Q2 2026 (filed Aug 11, 2026): 914 long positions worth $430.2M. The top 10 holdings make up 58.4% of the portfolio, and the largest is Micron Technology Inc (MU) at 23.0%. Livermore has 12 filings on Form 13F from this institution, going back to Q4 2023.

What changed in Q2 2026

Share counts compared with Q1 2026: how many positions were new, added to, reduced or sold out, and the biggest buys and sells. Dollar amounts are estimated at the quarter-end prices implied by the filing.

Full comparison
New
120
Est. +$9.62M
Added
326
Est. +$124.4M
Reduced
362
Est. −$51.4M
Sold out
85
Est. −$384.7K

Top 5 holdings

Share of this quarter's portfolio value

  1. MUMicron Technology Inc
    23.0%$98.8MHistory
  2. SNDKSandisk Corp
    12.6%$54.2MHistory
  3. NVDANVIDIA Corp
    7.5%$32.1MHistory
  4. TSLATesla, Inc.
    3.0%$12.7MHistory
  5. MSFTMicrosoft Corp
    2.9%$12.7MHistory

Biggest buys

New and added positions, by estimated amount bought

  1. MUMicron Technology Inc
    +$43.3MAddedHistory
  2. SNDKSandisk Corp
    +$17.4MAddedHistory
  3. MRVLMarvell Technology, Inc.
    +$6.68MAddedHistory
  4. NVDANVIDIA Corp
    +$6.16MAddedHistory
  5. MSFTMicrosoft Corp
    +$5.88MAddedHistory

Largest weight increases

New and added positions, by percentage points of the portfolio gained

  1. MUMicron Technology Inc
    +16.22 pp6.8% → 23.0%History
  2. SNDKSandisk Corp
    +8.32 pp4.3% → 12.6%History
  3. MRVLMarvell Technology, Inc.
    +1.82 pp0.4% → 2.2%History
  4. INTCIntel Corp
    +1.11 pp0.7% → 1.8%History
  5. WDCWestern Digital Corp
    +0.90 pp0.3% → 1.2%History

Biggest sells

Reduced and sold-out positions, by estimated amount sold

  1. UNHUnitedHealth Group Inc
    −$12.4MReducedHistory
  2. HMYHarmony Gold Mining Co Ltd
    −$2.61MReducedHistory
  3. PLTRPalantir Technologies Inc.
    −$2.00MReducedHistory
  4. GSGoldman Sachs Group Inc
    −$1.87MReducedHistory
  5. ALABAstera Labs, Inc.
    −$1.82MReducedHistory

Largest weight decreases

Reduced and sold-out positions, by percentage points of the portfolio lost

  1. UNHUnitedHealth Group Inc
    −3.42 pp3.8% → 0.4%History
  2. PLTRPalantir Technologies Inc.
    −3.36 pp5.2% → 1.9%History
  3. TSLATesla, Inc.
    −1.77 pp4.7% → 3.0%History
  4. HMYHarmony Gold Mining Co Ltd
    −1.21 pp1.4% → 0.1%History
  5. NEMNEWMONT Corp
    −0.96 pp1.1% → 0.1%History

Metrics

13F metrics for Q2 2026, computed only from the numbers in the filings. Definitions below.

Portfolio value
$430.2M
+$189.5M (+78.7%) vs. prior quarter
Positions
914
+35 vs. prior quarter
Top 10 concentration
58.4%
Top 10 as share of value
Turnover
15.4%
Q2 2026, one quarter
Average holding period
9.3 quarters
Weighted by value

How these are calculated

  • Portfolio value: the market value of all long positions in the 13F, as reported at quarter end, excluding options.
  • Top 10 concentration: the combined value of the 10 largest positions as a share of portfolio value.
  • Turnover: the smaller of this quarter's estimated purchases and estimated sales, divided by the average of this and last quarter's portfolio value. Estimates multiply the change in shares by the quarter-end price implied by the filing (market value divided by shares); new positions use this quarter's value and sold-out positions last quarter's. Only positions reported in shares count, and it is not calculated when the previous quarter was not filed.
  • Average holding period: how many consecutive quarters each current position has been held (including this one; a quarter without the position or without a filing starts the count over), weighted by this quarter's value. Counting starts with the first 13F in Livermore (Q4 2023), so positions held before then are understated.

13F filings by quarter

11 quarters, going back to Q4 2023. Bars show each quarter's 13F portfolio value; quarters without a filing are left blank.

Peak $430.2M (Q2 2026)

Q4 2023: $126.6MQ1 2024: $228.4MQ2 2024: $232.9MQ3 2024: $230.0MQ4 2024: $253.9MQ1 2025: $198.2MQ2 2025: $255.1MQ3 2025: $271.0MQ4 2025: $308.2MQ1 2026: $240.7MQ2 2026: $430.2M
Q4 2023Q2 2026
13F filings of Rakuten Securities, Inc. by quarter
QuarterFiledPositionsValueTop 3 holdingsChangesFiling
Q2 2026Aug 11, 2026914$430.2MMUSNDKNVDAvs. Q1 2026SEC
Q1 2026May 1, 2026879$240.7MNVDAMUPLTRvs. Q4 2025SEC
Q4 2025Jan 29, 2026892$308.2MNVDASOFIPLTRvs. Q3 2025SEC
Q3 2025Oct 28, 2025905$271.0MNVDATSLASOFIvs. Q2 2025SEC
Q2 2025Aug 15, 2025Amended842$255.1MNVDATSLACOINvs. Q1 2025SEC
Q1 2025Apr 18, 2025821$198.2MNVDATSLACOINvs. Q4 2024SEC
Q4 2024Feb 10, 2025760$253.9MNVDATSLAPLTRvs. Q3 2024SEC
Q3 2024Nov 5, 2024713$230.0MNVDASMCITSLAvs. Q2 2024SEC
Q2 2024Jul 31, 2024714$232.9MNVDATSLASMCIvs. Q1 2024SEC
Q1 2024May 1, 2024715$228.4MNVDASMCICOINvs. Q4 2023SEC
Q4 2023Jan 31, 2024612$126.6MNVDATSLAMDB–SEC