Little Harbor Advisors, LLC
- SEC CIK
- 0001539639
- Latest filing
- Aug 14, 2026
The latest 13F from Little Harbor Advisors, LLC covers Q2 2026 (filed Aug 14, 2026): 6 long positions worth $203.4M. The top 10 holdings make up 100.0% of the portfolio, and the largest is SPDR S&P 500 ETF Trust (SPY) at 79.5%. Livermore has 19 filings on Form 13F from this institution, going back to Q4 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.
- New
- 2
- Est. +$8.34M
- Added
- 2
- Est. +$957.1K
- Reduced
- 2
- Est. −$442.8K
- Sold out
- 0
Top 5 holdings
Share of this quarter's portfolio value
- SPYSPDR S&P 500 ETF Trust
- Invesco QQQ Trust Series I46090E10312.2%$24.9M
- SPDR Series Trust78468R4082.1%$4.24M
- iShares Tr4642885132.1%$4.17M
- SPDR Series Trust78468R6222.1%$4.17M
Share of portfolio
Top 5 holdings and the other 1 position, by share of portfolio value
- SPY79.5%
- Invesco QQQ Trust Series I12.2%
- SPDR Series Trust2.1%
- iShares Tr2.1%
- SPDR Series Trust2.1%
- Other 1 position2.0%
Biggest buys
New and added positions, by estimated amount bought
- SPDR Series Trust78468R622+$4.17MNew
- DBX ETF Tr233051432+$4.17MNew
- SPYSPDR S&P 500 ETF Trust
- Invesco QQQ Trust Series I46090E103+$73.6KAdded
Largest weight increases
New and added positions, by percentage points of the portfolio gained
- SPDR Series Trust78468R622+2.05 pp0.0% → 2.1%
- DBX ETF Tr233051432+2.05 pp0.0% → 2.0%
- Invesco QQQ Trust Series I46090E103+0.69 pp11.5% → 12.2%
Biggest sells
Reduced and sold-out positions, by estimated amount sold
- SPDR Series Trust78468R408−$223.1KReduced
- iShares Tr464288513−$219.7KReduced
Largest weight decreases
Reduced and sold-out positions, by percentage points of the portfolio lost
- SPDR Series Trust78468R408−0.58 pp2.7% → 2.1%
- iShares Tr464288513−0.56 pp2.6% → 2.1%
Metrics
13F metrics for Q2 2026, computed only from the numbers in the filings. Definitions below.
- Portfolio value
- $203.4M
- +$35.0M (+20.8%) vs. prior quarter
- Positions
- 6
- +2 vs. prior quarter
- Top 10 concentration
- 100.0%
- Top 10 as share of value
- Turnover
- 0.2%
- Q2 2026, one quarter
- Average holding period
- 17.6 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 2021), so positions held before then are understated.
13F filings by quarter
19 quarters, going back to Q4 2021. Bars show each quarter's 13F portfolio value; quarters without a filing are left blank.
Peak $203.4M (Q2 2026)
| Quarter | Filed | Positions | Value | Top 3 holdings | Changes | Filing |
|---|---|---|---|---|---|---|
| Q2 2026 | Aug 14, 2026 | 6 | $203.4M | SPYInvesco QQQ Trust Series ISPDR Series Trust | vs. Q1 2026 | SEC |
| Q1 2026 | May 15, 2026 | 4 | $168.4M | SPYInvesco QQQ Trust Series ISPDR Series Trust | vs. Q4 2025 | SEC |
| Q4 2025 | Feb 19, 2026 | 8 | $193.9M | SPYInvesco QQQ Trust Series ISPDR Series Trust | vs. Q3 2025 | SEC |
| Q3 2025 | Nov 25, 2025 | 8 | $200.1M | SPYInvesco QQQ Trust Series ISPDR Series Trust | vs. Q2 2025 | SEC |
| Q2 2025 | Aug 14, 2025 | 7 | $168.5M | SPYInvesco QQQ Trust Series IFirst Tr Exchange-Traded FD | vs. Q1 2025 | SEC |
| Q1 2025 | May 14, 2025 | 7 | $162.2M | SPYInvesco QQQ Trust Series ISPDR Series Trust | vs. Q4 2024 | SEC |
| Q4 2024 | Feb 14, 2025 | 7 | $169.4M | SPYInvesco QQQ Trust Series IInvesco Exch Traded FD Tr II | vs. Q3 2024 | SEC |
| Q3 2024 | Dec 3, 2024 | 7 | $160.9M | SPYInvesco QQQ Trust Series ISPDR Series Trust | vs. Q2 2024 | SEC |
| Q2 2024 | Aug 14, 2024 | 8 | $154.8M | SPYInvesco QQQ Trust Series IInvesco Exch Traded FD Tr II | vs. Q1 2024 | SEC |
| Q1 2024 | May 14, 2024 | 8 | $149.3M | SPYInvesco QQQ Trust Series IInvesco Exch Traded FD Tr II | vs. Q4 2023 | SEC |
| Q4 2023 | Feb 13, 2024 | 8 | $138.9M | SPYInvesco Exch Traded FD Tr IISsga Active ETF Tr | vs. Q3 2023 | SEC |
| Q3 2023 | Nov 9, 2023 | 7 | $123.7M | SPYSsga Active ETF TrInvesco Exch Traded FD Tr II | vs. Q2 2023 | SEC |
| Q2 2023 | Aug 14, 2023 | 8 | $129.2M | SPYInvesco Exch Traded FD Tr IISsga Active ETF Tr | vs. Q1 2023 | SEC |
| Q1 2023 | May 8, 2023 | 3 | $100.5M | SPYUVXYInvesco QQQ Trust Series I | vs. Q4 2022 | SEC |
| Q4 2022 | Feb 9, 2023 | 3 | $123.0M | SPYVIXYInvesco QQQ Trust Series I | vs. Q3 2022 | SEC |
| Q3 2022 | Nov 8, 2022 | 3 | $121.9M | SPYUVXYInvesco QQQ Trust Series I | vs. Q2 2022 | SEC |
| Q2 2022 | Aug 4, 2022 | 2 | $132.5M | SPYInvesco QQQ Trust Series I | vs. Q1 2022 | SEC |
| Q1 2022 | Apr 12, 2022 | 1 | $172.8M | SPY | vs. Q4 2021 | SEC |
| Q4 2021 | Feb 8, 2022 | 1 | $192.3M | SPY | – | SEC |