HA
Harbor Advisors LLC — 13F Portfolio Analysis & Stock Picks (Q2 2026)
Harbor Advisors LLCCIK: 0001687156
Long-term holder
Total reported value
$795.1M
Reporting period: 2026-06-30 · Number of holdings: 194
Harbor Advisors LLC disclosed 194 holdings in its latest 13F filing for the period ending 2026-06-30, with total reported value of $795.1M and a quarterly turnover rate of 0.0%.
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Personality snowflake
- Concentration
- 47.29
- Portfolio Stability
- 0
- Momentum
- 50
- Sector conviction
- 61.58
- Diversification
- 100
- Sizing Uniformity
- 53.04
Harbor Advisors LLC's disclosed holdings carry a Herfindahl concentration index of 0.118 — mathematically equivalent to about 8 equally-sized positions, well below its 194 actual disclosed holdings. That gap points to a strategy built around a small core of high-conviction bets rather than broad diversification.
Position sizes vary widely across the portfolio (a coefficient of variation of 4.70), with a handful of outsized bets alongside many smaller positions.
No strong tilt toward either adding to existing winners or initiating outsized new positions was observed in the latest reported quarter.
Source and citation information
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Recent moves
View source Form 13F filing on SEC.govAdd MU
-2.0% $40.5M
Trim EQIX
0.0% $14.9M
Trim CNQ
0.0% -$4.6M
Add NBIS
0.0% $4.8M
Add GOOGL
0.0% $10.2M
Sold out CTRA
Holdings Map
New buyAddUnchangedTrim
Top 10 holdings by weight
Full holdings list this quarter
| # | Ticker | Issuer | Asset Subclass | Weight | Weight Change | Shares Change | 4Q Trend |
|---|---|---|---|---|---|---|---|
| 1 | EQIX | Equinix Inc | Stock-Real Estate | 31.36% | -2.52% | — | |
| 2 | MU | Micron Technology Inc | Stock-Tech | 7.26% | +4.77% | -1.96% | |
| 3 | GOOGL | Alphabet Inc-cl A | Stock-Comm Services | 6.54% | +0.49% | — | |
| 4 | AAPL | Apple Inc | Stock-Tech | 5.40% | -0.04% | — | |
| 5 | AMZN | Amazon.com Inc | Stock-Consumer Disc | 4.59% | -0.02% | — | |
| 6 | NVDA | Nvidia CORP | Stock-Tech | 4.53% | -0.01% | — | |
| 7 | CNQ | Canadian Natural Resources | Stock-Energy | 2.48% | -1.04% | — | |
| 8 | IBKR | Interactive Brokers Gro-cl A | Stock-Financials | 2.05% | +0.24% | — | |
| 9 | FTAI | FTAI Aviation Ltd. | Stock-Industrials | 1.94% | -0.08% | — | |
| 10 | MA | Mastercard Inc - A | Stock-Financials | 1.68% | -0.20% | — | |
| 11 | MSFT | Microsoft CORP | Stock-Tech | 1.24% | -0.18% | — | |
| 12 | FERG | Ferguson Enterprises Inc | Stock-Industrials | 1.23% | -0.16% | — | |
| 13 | ✓ | Bank Of Nt Butterfield&son L | Stock-Other | 1.08% | -0.02% | — | |
| 14 | JPM | Jpmorgan Chase & Co | Stock-Financials | 0.99% | -0.04% | — | |
| 15 | META | Meta Platforms Inc-class A | Stock-Comm Services | 0.98% | -0.16% | — | |
| 16 | NBIS | Nebius Group N.V. | Stock-Other | 0.96% | +0.55% | — | |
| 17 | GOOG | Alphabet Inc-cl C | Stock-Comm Services | 0.89% | +0.06% | — | |
| 18 | PJT | Pjt Partners Inc - A | Stock-Financials | 0.79% | -0.05% | — | |
| 19 | NUE | Nucor CORP | Stock-Materials | 0.78% | +0.10% | — | |
| 20 | SPGI | S&p Global Inc | Stock-Financials | 0.70% | -0.14% | — | |
| 21 | DLR | Digital Realty Trust Inc | Stock-Real Estate | 0.69% | +0.02% | +19.57% | |
| 22 | EVR | Evercore Inc - A | Stock-Financials | 0.64% | -0.01% | — | |
| 23 | CRWD | Crowdstrike Holdings Inc - A | Stock-Tech | 0.60% | +0.25% | — | |
| 24 | BLK | Blackrock Inc | Stock-Financials | 0.47% | -0.08% | — | |
| 25 | WMT | Walmart Inc | Stock-Consumer Staples | 0.47% | -0.12% | — | |
| 26 | MCO | Moody's CORP | Stock-Financials | 0.46% | -0.04% | — | |
| 27 | TMUS | T-mobile US Inc | Stock-Comm Services | 0.44% | -0.19% | — | |
| 28 | PANW | Palo Alto Networks Inc | Stock-Tech | 0.43% | +0.20% | — | |
| 29 | EOG | Eog Resources Inc | Stock-Energy | 0.42% | -0.12% | — | |
| 30 | HLI | Houlihan Lokey Inc | Stock-Financials | 0.42% | -0.10% | — | |
| 31 | MCB | Metropolitan Bank Holding Co | Stock-Other | 0.39% | +0.01% | — | |
| 32 | GE | General Electric | Stock-Industrials | 0.33% | +0.04% | — | |
| 33 | MLM | Martin Marietta Materials | Stock-Materials | 0.33% | -0.05% | — | |
| 34 | PNC | Pnc Financial Services Group | Stock-Financials | 0.32% | +0.01% | — | |
| 35 | DHR | Danaher CORP | Stock-Healthcare | 0.30% | -0.04% | — | |
| 36 | AKAM | Akamai Technologies Inc | Stock-Tech | 0.30% | -0.03% | — | |
| 37 | HLT | Hilton Worldwide Holdings In | Stock-Consumer Disc | 0.30% | -0.01% | — | |
| 38 | AMD | Advanced Micro Devices | Stock-Tech | 0.29% | +0.17% | — | |
| 39 | FBK | Fb Financial CORP | Stock-Other | 0.28% | -0.03% | — | |
| 40 | DVN | Devon Energy CORP | Stock-Energy | 0.27% | +0.19% | +406.87% | |
| 41 | BPOP | Popular Inc | Stock-Financials | 0.27% | +0.02% | — | |
| 42 | CVX | Chevron CORP | Stock-Energy | 0.26% | -0.12% | — | |
| 43 | HD | Home Depot Inc | Stock-Consumer Disc | 0.24% | -0.02% | — | |
| 44 | FOX | Fox CORP - Class B | Stock-Comm Services | 0.24% | -0.08% | — | |
| 45 | AJG | Arthur J Gallagher & Co | Stock-Financials | 0.24% | -0.02% | — | |
| 46 | EFX | Equifax Inc | Stock-Industrials | 0.24% | -0.07% | — | |
| 47 | APO | Apollo Global Management Inc | Stock-Financials | 0.24% | -0.02% | — | |
| 48 | CUBI | Customers Bancorp Inc | Stock-Other | 0.23% | — | — | |
| 49 | GDS | Gds Holdings LTD - Adr | Stock-Other | 0.23% | -0.05% | +26.32% | |
| 50 | EG | Everest Group, Ltd. | Stock-Financials | 0.22% | -0.02% | — |
1–50 of 194
Portfolio Performance
Performance for Q3 2026
+0.5%
Performance Last 4 Quarters
+31.5%
- Stdev
- +15.3%
- Beta
- +1.02
- Alpha
- -1.6%
- Max Drawdown
- -12.7%
- Annualized Perf
- +19.1%
- Batting Avg vs S&P
- +50%
- Sortino
- +2.32
- Stutzer
- +0.36
- Treynor
- +0.18
- Sterling
- +1.05
- Calmar
- +1.51
- Information Ratio
- -0.16
- Tracking Error
- +7.9%
- Stdev Down
- +8.1%
- Winning Months %
- +66.7%
- Losing Months %
- +33.3%
- Best 12 Months
- +37.6%
- Worst 12 Months
- +0.5%
- Efficiency Ratio
- +0.52
- Sharpe
- +1.22
- Stdev Sectors
- +10.3%
- Skewness
- +0.04
- Kurtosis
- +0.34
- Upside Potential
- +3.9
Reported value over time
Sector allocation
Sector allocation over time
Quarterly history
| Period | Holdings | Total value | Stability | Top holdings | |
|---|---|---|---|---|---|
| 2026 Q2 | 194 | $795.1M | 0 | ||
| 2026 Q1 | 197 | $692.2M | 17 | ||
| 2025 Q4 | 193 | $665.8M | 9 | ||
| 2025 Q3 | 190 | $648.4M | 19 | ||
| 2025 Q2 | 190 | $611.0M | 0 | ||
| 2025 Q1 | 193 | $576.0M | 100 | ||
| 2024 Q4 | 192 | $636.5M | 0 | ||
| 2024 Q3 | 188 | $597.5M | 0 | ||
| 2024 Q2 | 178 | $545.4M | 0 | ||
| 2024 Q1 | 176 | $544.4M | 0 | ||
| 2023 Q4 | 175 | $523.0M | 0 | ||
| 2023 Q3 | 165 | $466.8M | 0 | ||
| 2023 Q2 | 154 | $470.5M | 0 | ||
| 2023 Q1 | 150 | $427.4M | 0 | ||
| 2022 Q4 | 163 | $400.6M | 0 | ||
| 2022 Q3 | 167 | $371.7M | 0 | ||
| 2022 Q2 | 176 | $411.9M | 0 | ||
| 2022 Q1 | 182 | $487.7M | 0 | ||
| 2021 Q4 | 185 | $537.7M | 0 | ||
| 2021 Q3 | 183 | $499.9M | 0 | ||
| 2021 Q2 | 187 | $505.6M | 100 | ||
| 2021 Q1 | 199 | $451.1M | 16 | ||
| 2020 Q4 | 168 | $446.6M | 14 | ||
| 2020 Q3 | 154 | $425.5M | 11 | ||
| 2020 Q2 | 150 | $390.2M | 18 | ||
| 2020 Q1 | 136 | $329.5M | 29 | ||
| 2019 Q4 | 164 | $369.0M | 9 | ||
| 2019 Q3 | 164 | $349.5M | 13 | ||
| 2019 Q2 | 164 | $334.6M | 11 | ||
| 2019 Q1 | 162 | $310.3M | 26 | ||
| 2018 Q4 | 164 | $257.1M | 26 | ||
| 2018 Q3 | 178 | $322.1M | 8 | ||
| 2018 Q2 | 172 | $310.6M | 11 | ||
| 2018 Q1 | 171 | $297.0M | 15 | ||
| 2017 Q4 | 165 | $294.4M | 12 | ||
| 2017 Q3 | 158 | $273.1M | 9 | ||
| 2017 Q2 | 144 | $252.8M | 15 | ||
| 2017 Q1 | 138 | $234.9M | 18 | ||
| 2016 Q4 | 121 | $208.6M | — |
Holding changes this quarter
Harbor Advisors LLC's most significant position changes for 2026-06-30: Sold out: Coterra Energy Inc (CTRA); Sold out: Exxon Mobil CORP (XOM); New buy: Mcdonald's CORP (MCD); New buy: Trulieve Cannabis CORP (TRLV); New buy: Third Coast Bancshares Inc (TCBX).
Showing top 200 changes by size (of 207 total)
| # | Ticker | Issuer | Weight Change | Shares Change | Action |
|---|---|---|---|---|---|
| 1 | MU | Micron Technology Inc | +4.8% | -1.96% | Trim |
| 2 | NBIS | Nebius Group N.V. | +0.6% | — | Unchanged |
| 3 | GOOGL | Alphabet Inc-cl A | +0.5% | — | Unchanged |
| 4 | CRWD | Crowdstrike Holdings Inc - A | +0.3% | — | Unchanged |
| 5 | IBKR | Interactive Brokers Gro-cl A | +0.2% | — | Unchanged |
| 6 | PANW | Palo Alto Networks Inc | +0.2% | — | Unchanged |
| 7 | DVN | Devon Energy CORP | +0.2% | +406.87% | Add |
| 8 | AMD | Advanced Micro Devices | +0.2% | — | Unchanged |
| 9 | NUE | Nucor CORP | +0.1% | — | Unchanged |
| 10 | MCD | Mcdonald's CORP | +0.1% | NEW | New buy |
| 11 | GOOG | Alphabet Inc-cl C | +0.1% | — | Unchanged |
| 12 | SNOW | Snowflake Inc | +0.1% | — | Unchanged |
| 13 | TRLV | Trulieve Cannabis CORP | +0.1% | NEW | New buy |
| 14 | URI | United Rentals Inc | +0.1% | — | Unchanged |
| 15 | ASML | ASML Holding N.V. | +0.1% | — | Unchanged |
| 16 | TCBX | Third Coast Bancshares Inc | +0.1% | NEW | New buy |
| 17 | GE | General Electric | 0% | — | Unchanged |
| 18 | DELL | Dell Technologies -c | 0% | — | Unchanged |
| 19 | WLFC | Willis Lease Finance CORP | 0% | +50.00% | Add |
| 20 | BE | Bloom Energy Corp- A | 0% | — | Unchanged |
| 21 | NOW | Servicenow Inc | 0% | NEW | New buy |
| 22 | VRT | Vertiv Holdings Co-a | 0% | — | Unchanged |
| 23 | LLY | Eli Lilly & Co | 0% | — | Unchanged |
| 24 | NVTS | Navitas Semiconductor CORP | 0% | NEW | New buy |
| 25 | UPS | United Parcel Service-cl B | 0% | NEW | New buy |
| 26 | DLR | Digital Realty Trust Inc | 0% | +19.57% | Add |
| 27 | BPOP | Popular Inc | 0% | — | Unchanged |
| 28 | GEV | GE Vernova Inc | 0% | — | Unchanged |
| 29 | OSG | Octave Specialty Group Inc | 0% | — | Unchanged |
| 30 | SLG | Sl Green Realty CORP | 0% | — | Unchanged |
| 31 | UNH | Unitedhealth Group Inc | 0% | — | Unchanged |
| 32 | H | Hyatt Hotels CORP - Cl A | 0% | — | Unchanged |
| 33 | ✓ | 0% | NEW | New buy | |
| 34 | ✓ | 0% | NEW | New buy | |
| 35 | NBBK | Nb Bancorp Inc | 0% | +75.00% | Add |
| 36 | ✓ | Bitdeer Technologies Group | 0% | NEW | New buy |
| 37 | MCB | Metropolitan Bank Holding Co | 0% | — | Unchanged |
| 38 | PNC | Pnc Financial Services Group | 0% | — | Unchanged |
| 39 | MS | Morgan Stanley | 0% | — | Unchanged |
| 40 | TT | Trane Technologies plc | 0% | — | Unchanged |
| 41 | LII | Lennox International Inc | 0% | — | Unchanged |
| 42 | AVGO | Broadcom Inc | 0% | — | Unchanged |
| 43 | CARR | Carrier Global CORP | 0% | — | Unchanged |
| 44 | KDP | Keurig Dr Pepper Inc | 0% | — | Unchanged |
| 45 | WAL | Western Alliance Bancorp | 0% | — | Unchanged |
| 46 | AMG | Affiliated Managers Group | 0% | — | Unchanged |
| 47 | TSM | Taiwan Semiconductor-sp Adr | 0% | — | Unchanged |
| 48 | VOYA | Voya Financial Inc | 0% | — | Unchanged |
| 49 | C | Citigroup Inc | 0% | — | Unchanged |
| 50 | NXPI | NXP Semiconductors N.V. | 0% | — | Unchanged |
1–50 of 200
Filing History
FAQ
What is Harbor Advisors LLC and what type of investor is it?
Harbor Advisors LLC is an investment manager that files SEC Form 13F quarterly, disclosing its U.S. public equity holdings to regulators. As of the most recent reporting period (2026-06-30), the firm manages a tracked equity portfolio valued at approximately $795.1M, spread across 194 disclosed positions.
What are Harbor Advisors LLC's largest equity positions?
Based on the latest 13F filing, Harbor Advisors LLC's top holdings by market value are:
1. Equinix Inc (EQIX) — $249.4M (31.4%)
2. Micron Technology Inc (MU) — $57.7M (7.3%)
3. Alphabet Inc-cl A (GOOGL) — $52.0M (6.5%)
4. Apple Inc (AAPL) — $42.9M (5.4%)
5. Amazon.com Inc (AMZN) — $36.5M (4.6%)
What changes did Harbor Advisors LLC make in its most recent portfolio filing?
In the latest reported quarter, Harbor Advisors LLC made 34 notable position adjustments: 10 new positions were initiated, 7 existing holdings were added to, 4 positions were partially reduced, and 13 were completely exited. The largest of these moves: Sold out: Coterra Energy Inc (CTRA); Sold out: Exxon Mobil CORP (XOM); New buy: Mcdonald's CORP (MCD); New buy: Trulieve Cannabis CORP (TRLV); New buy: Third Coast Bancshares Inc (TCBX)
What sectors does Harbor Advisors LLC focus on?
Harbor Advisors LLC is concentrated in the following sectors based on its current disclosed equity portfolio:
• Real Estate: 34.1%
• Information Technology: 22.5%
• Financials: 13.5%
• Communication Services: 10.1%
• Industrials: 6.3%
• Consumer Discretionary: 6.1%
Investment Profile
Harbor Advisors LLC returned an annualized 19.1% over the trailing 36 months — underperforming the S&P 500 by 1.6 points — based on a reconstructed track record of its disclosed 13F positions, with a beta of 1.02 (roughly in line with the market) and a 50% quarterly batting average against the index.
Its portfolio is moderately concentrated and long-term-holding, with 34.1% of the portfolio concentrated in Real Estate.
It has added to its EQIX position over the past two quarters (+$55.7M, now $249.4M), while trimming CHTR over the same stretch (-$2.1M, still holding $1.2M).
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Developer Access
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REST API
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