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Livermore
Livermore
ZHEN

Alta Advisers Ltd

SEC CIK
0001536114
Latest filing
Aug 12, 2026

The latest 13F from Alta Advisers Ltd covers Q2 2026 (filed Aug 12, 2026): 219 long positions worth $441.2M. The top 10 holdings make up 63.4% of the portfolio, and the largest is Vanguard Total World Stock ETF at 20.0%. Livermore has 22 filings on Form 13F from this institution, going back to Q1 2021.

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
19
Est. +$4.93M
Added
15
Est. +$102.9M
Reduced
8
Est. −$953.6K
Sold out
6
Est. −$4.17M

Top 5 holdings

Share of this quarter's portfolio value

  1. Vanguard Total World Stock ETF922042742
    20.0%$88.2M
  2. NVDANVIDIA Corp
    12.4%$54.5MHistory
  3. Vanguard Scottsdale FDS92206C102
    7.5%$33.1M
  4. AMZNAmazon Com Inc
    5.1%$22.4MHistory
  5. GOOGAlphabet Inc.
    4.8%$21.3MHistory

Biggest buys

New and added positions, by estimated amount bought

  1. NVDANVIDIA Corp
    +$35.5MAddedHistory
  2. GOOGAlphabet Inc.
    +$14.8MAddedHistory
  3. AMZNAmazon Com Inc
    +$13.3MAddedHistory
  4. Vanguard Total World Stock ETF922042742
    +$11.3MAdded
  5. STXSeagate Technology Holdings plc
    +$11.0MAddedHistory

Largest weight increases

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

  1. NVDANVIDIA Corp
    +6.35 pp6.0% → 12.4%History
  2. GOOGAlphabet Inc.
    +2.93 pp1.9% → 4.8%History
  3. STXSeagate Technology Holdings plc
    +2.55 pp0.1% → 2.7%History
  4. WDCWestern Digital Corp
    +2.53 pp0.1% → 2.7%History
  5. AMZNAmazon Com Inc
    +2.21 pp2.9% → 5.1%History

Biggest sells

Reduced and sold-out positions, by estimated amount sold

  1. XOMExxonMobil Holdings Corp
    −$2.79MSold outHistory
  2. HONHoneywell International Inc
    −$555.4KSold outHistory
  3. Vanguard S&P 500 ETF922908363
    −$470.5KReduced
  4. Vanguard Ftse All-World Ex-US Index Fund922042775
    −$255.3KReduced
  5. NKENIKE, Inc.
    −$246.2KSold outHistory

Largest weight decreases

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

  1. XOMExxonMobil Holdings Corp
    −1.01 pp1.0% → 0.0%History
  2. Vanguard S&P 500 ETF922908363
    −0.96 pp3.1% → 2.1%
  3. Vanguard Ftse All-World Ex-US Index Fund922042775
    −0.57 pp1.7% → 1.1%
  4. BRK.BBerkshire Hathaway Inc
    −0.43 pp1.2% → 0.8%History
  5. HONHoneywell International Inc
    −0.20 pp0.2% → 0.0%History

Metrics

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

Portfolio value
$441.2M
+$164.8M (+59.6%) vs. prior quarter
Positions
219
+13 vs. prior quarter
Top 10 concentration
63.4%
Top 10 as share of value
Turnover
1.4%
Q2 2026, one quarter
Average holding period
13.0 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

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

Peak $441.2M (Q2 2026)

Q1 2021: $130.8MQ2 2021: $139.5MQ3 2021: $123.6MQ4 2021: $126.7MQ1 2022: $119.7MQ2 2022: $84.9MQ3 2022: $158.7MQ4 2022: $167.0MQ1 2023: $167.5MQ2 2023: $177.8MQ3 2023: $172.6MQ4 2023: $187.2MQ1 2024: $201.7MQ2 2024: $207.9MQ3 2024: $218.9MQ4 2024: $158.4MQ1 2025: $234.9MQ2 2025: $281.0MQ3 2025: $326.9MQ4 2025: $276.0MQ1 2026: $276.4MQ2 2026: $441.2M
Q1 2021Q2 2026
13F filings of Alta Advisers Ltd by quarter
QuarterFiledPositionsValueTop 3 holdingsChangesFiling
Q2 2026Aug 12, 2026219$441.2MVanguard Total World Stock ETFNVDAVanguard Scottsdale FDSvs. Q1 2026SEC
Q1 2026May 7, 2026206$276.4MVanguard Total World Stock ETFVanguard Scottsdale FDSNVDAvs. Q4 2025SEC
Q4 2025Feb 9, 2026199$276.0MVanguard Total World Stock ETFVanguard Scottsdale FDSNVDAvs. Q3 2025SEC
Q3 2025Oct 31, 2025248$326.9MVanguard Scottsdale FDSNVDAMSFTvs. Q2 2025SEC
Q2 2025Jul 25, 2025246$281.0MVanguard Scottsdale FDSNVDAMSFTvs. Q1 2025SEC
Q1 2025Apr 25, 2025229$234.9MAAPLMSFTNVDAvs. Q4 2024SEC
Q4 2024Feb 14, 2025153$158.4MAAPLVanguard Scottsdale FDSNVDAvs. Q3 2024SEC
Q3 2024Nov 8, 2024413$218.9MVanguard Scottsdale FDSVanguard S&P 500 ETFVanguard Ftse All-World Ex-US Index Fundvs. Q2 2024SEC
Q2 2024Aug 8, 2024399$207.9MVanguard Scottsdale FDSVanguard S&P 500 ETFVanguard Ftse All-World Ex-US Index Fundvs. Q1 2024SEC
Q1 2024Apr 24, 2024392$201.7MVanguard Scottsdale FDSVanguard S&P 500 ETFVanguard Ftse All-World Ex-US Index Fundvs. Q4 2023SEC
Q4 2023Feb 12, 2024392$187.2MVanguard Scottsdale FDSVanguard S&P 500 ETFVanguard Ftse All-World Ex-US Index Fundvs. Q3 2023SEC
Q3 2023Nov 3, 2023388$172.6MVanguard Scottsdale FDSVanguard S&P 500 ETFVanguard Ftse All-World Ex-US Index Fundvs. Q2 2023SEC
Q2 2023Jul 25, 2023388$177.8MVanguard Scottsdale FDSVanguard S&P 500 ETFVanguard Ftse All-World Ex-US Index Fundvs. Q1 2023SEC
Q1 2023May 9, 2023383$167.5MVanguard Scottsdale FDSVanguard S&P 500 ETFVanguard Ftse All-World Ex-US Index Fundvs. Q4 2022SEC
Q4 2022Jan 27, 2023381$167.0MVanguard Scottsdale FDSVanguard S&P 500 ETFVanguard Ftse All-World Ex-US Index Fundvs. Q3 2022SEC
Q3 2022Oct 28, 2022380$158.7MVanguard Scottsdale FDSVanguard S&P 500 ETFVanguard Ftse All-World Ex-US Index Fundvs. Q2 2022SEC
Q2 2022Jul 26, 20226$84.9MVanguard Scottsdale FDSVanguard S&P 500 ETFVanguard Ftse All-World Ex-US Index Fundvs. Q1 2022SEC
Q1 2022May 3, 20226$119.7MVanguard Scottsdale FDSVanguard S&P 500 ETFVanguard Ftse All-World Ex-US Index Fundvs. Q4 2021SEC
Q4 2021Jan 13, 20226$126.7MVanguard Scottsdale FDSVanguard S&P 500 ETFVanguard Ftse All-World Ex-US Index Fundvs. Q3 2021SEC
Q3 2021Oct 19, 20216$123.6MVanguard Scottsdale FDSVanguard S&P 500 ETFVanguard Ftse All-World Ex-US Index Fundvs. Q2 2021SEC
Q2 2021Jul 20, 20215$139.5MVanguard Scottsdale FDSVanguard S&P 500 ETFVanguard Ftse All-World Ex-US Index Fundvs. Q1 2021SEC
Q1 2021May 5, 20215$130.8MVanguard Scottsdale FDSVanguard S&P 500 ETFVanguard Ftse All-World Ex-US Index Fund–SEC