Efficient Frontier Advisors LLC
- SEC CIK
- 0002011188
- Latest filing
- Jul 9, 2025
The latest 13F from Efficient Frontier Advisors LLC covers Q2 2025 (filed Jul 9, 2025): 22 long positions worth $157.5M. The top 10 holdings make up 96.8% of the portfolio, and the largest is iShares Tr at 26.7%. Livermore has 7 filings on Form 13F from this institution, going back to Q4 2023.
What changed in Q2 2025
Share counts compared with Q1 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.
- New
- 1
- Est. +$305.6K
- Added
- 14
- Est. +$1.40M
- Reduced
- 5
- Est. −$5.19M
- Sold out
- 0
Top 5 holdings
Share of this quarter's portfolio value
- iShares Tr46436E71826.7%$42.1M
- Dimensional ETF Trust25434V72420.3%$32.0M
- Dimensional U.S. Targeted Value ETF25434V60916.0%$25.2M
- Dimensional ETF Trust25434V80715.7%$24.8M
- Vanguard Morningstar Total Stock Market ETF9229087696.9%$10.8M
Biggest buys
New and added positions, by estimated amount bought
- iShares Tr46436E718+$1.11MAdded
- American Centy ETF Tr025072877+$305.6KNew
- Dimensional ETF Trust25434V781+$104.4KAdded
- Dimensional ETF Trust25434V815+$101.4KAdded
- Vanguard Morningstar Total Stock Market ETF922908769+$61.1KAdded
Largest weight increases
New and added positions, by percentage points of the portfolio gained
- Vanguard Morningstar Total Stock Market ETF922908769+0.54 pp6.3% → 6.9%
- American Centy ETF Tr025072877+0.19 pp0.0% → 0.2%
- Dimensional ETF Trust25434V781+0.19 pp1.2% → 1.4%
- American Centy ETF Tr025072802+0.19 pp1.7% → 1.9%
- Dimensional ETF Trust25434V815+0.12 pp2.7% → 2.8%
Biggest sells
Reduced and sold-out positions, by estimated amount sold
- Dimensional ETF Trust25434V724−$1.94MReduced
- Dimensional U.S. Targeted Value ETF25434V609−$1.83MReduced
- VanEck ETF Trust92189F106−$618.7KReduced
- Dimensional ETF Trust25434V807−$448.0KReduced
- Dimensional U.S. Small Cap ETF25434V500−$356.2KReduced
Largest weight decreases
Reduced and sold-out positions, by percentage points of the portfolio lost
- Dimensional ETF Trust25434V724−1.21 pp21.5% → 20.3%
- Dimensional U.S. Targeted Value ETF25434V609−0.78 pp16.8% → 16.0%
- Dimensional U.S. Small Cap ETF25434V500−0.13 pp2.3% → 2.2%
- VanEck ETF Trust92189F106−0.08 pp3.0% → 2.9%
Metrics
13F metrics for Q2 2025, computed only from the numbers in the filings. Definitions below.
- Portfolio value
- $157.5M
- +$3.80M (+2.5%) vs. prior quarter
- Positions
- 22
- +1 vs. prior quarter
- Top 10 concentration
- 96.8%
- Top 10 as share of value
- Turnover
- 1.1%
- Q2 2025, one quarter
- Average holding period
- 6.7 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
7 quarters, going back to Q4 2023. Bars show each quarter's 13F portfolio value; quarters without a filing are left blank.
Peak $157.5M (Q2 2025)
| Quarter | Filed | Positions | Value | Top 3 holdings | Changes | Filing |
|---|---|---|---|---|---|---|
| Q2 2025 | Jul 9, 2025 | 22 | $157.5M | iShares TrDimensional ETF TrustDimensional U.S. Targeted Value ETF | vs. Q1 2025 | SEC |
| Q1 2025 | Apr 7, 2025 | 21 | $153.7M | iShares TrDimensional ETF TrustDimensional U.S. Targeted Value ETF | vs. Q4 2024 | SEC |
| Q4 2024 | Jan 28, 2025 | 17 | $151.2M | iShares TrDimensional ETF TrustDimensional U.S. Targeted Value ETF | vs. Q3 2024 | SEC |
| Q3 2024 | Oct 2, 2024 | 18 | $154.5M | iShares TrDimensional ETF TrustDimensional U.S. Targeted Value ETF | vs. Q2 2024 | SEC |
| Q2 2024 | Jul 18, 2024 | 16 | $141.9M | iShares TrDimensional ETF TrustDimensional U.S. Targeted Value ETF | vs. Q1 2024 | SEC |
| Q1 2024 | Apr 3, 2024 | 13 | $126.3M | Dimensional ETF TrustDimensional U.S. Targeted Value ETFiShares Tr | vs. Q4 2023 | SEC |
| Q4 2023 | Feb 9, 2024 | 12 | $119.0M | iShares TrDimensional U.S. Targeted Value ETFDimensional ETF Trust | – | SEC |