Skip to main content
Livermore
Livermore
ZHEN

Optimum Investment Advisors

SEC CIK
0001037763
Latest filing
Oct 21, 2025

The latest 13F from Optimum Investment Advisors covers Q3 2025 (filed Oct 21, 2025): 612 long positions worth $252.0M. The top 10 holdings make up 36.9% of the portfolio, and the largest is Apple Inc. (AAPL) at 8.6%. Livermore has 20 filings on Form 13F from this institution, going back to Q1 2021.

What changed in Q3 2025

Share counts compared with Q2 2025: 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
17
Est. +$721.7K
Added
65
Est. +$3.43M
Reduced
95
Est. −$4.47M
Sold out
18
Est. −$359.3K

Top 5 holdings

Share of this quarter's portfolio value

  1. AAPLApple Inc.
    8.6%$21.8MHistory
  2. NVDANVIDIA Corp
    6.2%$15.6MHistory
  3. SPYSPDR S&P 500 ETF Trust
    6.1%$15.4MHistory
  4. MSFTMicrosoft Corp
    3.3%$8.42MHistory
  5. Vanguard Information Technology ETF92204A702
    2.8%$7.04M

Share of portfolio

Top 5 holdings and the other 607 positions, by share of portfolio value

  1. AAPL8.6%
  2. NVDA6.2%
  3. SPY6.1%
  4. MSFT3.3%
  5. Vanguard Information Technology ETF2.8%
  6. Other 607 positions72.9%

Biggest buys

New and added positions, by estimated amount bought

  1. RGLDRoyal Gold Inc
    +$431.2KAddedHistory
  2. TEVATeva Pharmaceutical Industries Ltd
    +$353.0KAddedHistory
  3. GLDSPDR Gold Trust
    +$286.2KAddedHistory
  4. SMRNuscale Power Corp
    +$254.3KNewHistory
  5. PSNParsons Corp
    +$231.0KNewHistory

Largest weight increases

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

  1. FIXComfort Systems USA Inc
    +0.32 pp0.7% → 1.0%History
  2. GLDSPDR Gold Trust
    +0.21 pp1.4% → 1.6%History
  3. RGLDRoyal Gold Inc
    +0.17 pp<0.1% → 0.2%History
  4. GOOGLAlphabet Inc.
    +0.17 pp0.6% → 0.8%History
  5. TEVATeva Pharmaceutical Industries Ltd
    +0.14 pp<0.1% → 0.1%History

Biggest sells

Reduced and sold-out positions, by estimated amount sold

  1. NVDANVIDIA Corp
    −$559.7KReducedHistory
  2. Vanguard Information Technology ETF92204A702
    −$256.1KReduced
  3. ADBEAdobe Inc.
    −$172.8KReducedHistory
  4. AAPLApple Inc.
    −$159.1KReducedHistory
  5. SHOPShopify Inc.
    −$148.6KReducedHistory

Largest weight decreases

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

  1. MSFTMicrosoft Corp
    −0.21 pp3.5% → 3.3%History
  2. ADBEAdobe Inc.
    −0.15 pp0.5% → 0.3%History
  3. UPSUnited Parcel Service Inc
    −0.15 pp0.5% → 0.4%History
  4. FISVFiserv Inc
    −0.13 pp0.3% → 0.2%History
  5. VVisa Inc.
    −0.09 pp0.5% → 0.5%History

Metrics

13F metrics for Q3 2025, computed only from the numbers in the filings. Definitions below.

Portfolio value
$252.0M
+$21.7M (+9.4%) vs. prior quarter
Positions
612
−1 vs. prior quarter
Top 10 concentration
36.9%
Top 10 as share of value
Turnover
1.7%
Q3 2025, one quarter
Average holding period
17.9 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 (Q1 2021), so positions held before then are understated.

13F filings by quarter

19 quarters, going back to Q1 2021. Bars show each quarter's 13F portfolio value; quarters without a filing are left blank.

Peak $341.6M (Q1 2021)

Q1 2021: $341.6MQ2 2021: $320.6MQ3 2021: $237.2MQ4 2021: $256.8MQ1 2022: $237.3MQ2 2022: $199.7MQ3 2022: $185.8MQ4 2022: $184.5MQ1 2023: $190.8MQ2 2023: $204.2MQ3 2023: $195.2MQ4 2023: $198.8MQ1 2024: $217.7MQ2 2024: $222.8MQ3 2024: $231.3MQ4 2024: $226.5MQ1 2025: $212.3MQ2 2025: $230.3MQ3 2025: $252.0M
Q1 2021Q3 2025
13F filings of Optimum Investment Advisors by quarter
QuarterFiledPositionsValueTop 3 holdingsChangesFiling
Q3 2025Oct 21, 2025612$252.0MAAPLNVDASPYvs. Q2 2025SEC
Q2 2025Jul 31, 2025613$230.3MAAPLSPYNVDAvs. Q1 2025SEC
Q1 2025Apr 30, 2025637$212.3MAAPLSPYNVDAvs. Q4 2024SEC
Q4 2024Feb 11, 2025616$226.5MAAPLSPYNVDAvs. Q3 2024SEC
Q3 2024Oct 16, 2024636$231.3MAAPLSPYNVDAvs. Q2 2024SEC
Q2 2024Jul 12, 2024636$222.8MAAPLNVDASPYvs. Q1 2024SEC
Q1 2024Apr 11, 2024639$217.7MAAPLSPYNVDAvs. Q4 2023SEC
Q4 2023Jan 8, 2024637$198.8MAAPLSPYMSFTvs. Q3 2023SEC
Q3 2023Oct 13, 2023714$195.2MAAPLSPYMSFTvs. Q2 2023SEC
Q2 2023Aug 3, 2023704$204.2MAAPLSPYMSFTvs. Q1 2023SEC
Q1 2023May 3, 2023730$190.8MAAPLSPYMSFTvs. Q4 2022SEC
Q4 2022Jan 5, 2023756$184.5MAAPLSPYUNHvs. Q3 2022SEC
Q3 2022Oct 24, 2022826$185.8MAAPLSPYUNHvs. Q2 2022SEC
Q2 2022Jul 12, 2022824$199.7MAAPLSPYUNHvs. Q1 2022SEC
Q1 2022Apr 8, 2022845$237.3MAAPLSPYUNHvs. Q4 2021SEC
Q4 2021Mar 17, 2022838$256.8MAAPLSPYMSFTvs. Q3 2021SEC
Q3 2021Oct 22, 2021Amended839$237.2MAAPLSPYMSFTvs. Q2 2021SEC
Q2 2021Aug 2, 2021913$320.6MAAPLSPYMSFTvs. Q1 2021SEC
Q1 2021Apr 15, 2021917$341.6MAAPLSPYMSFT–SEC