1y return+25.7%S&P 500 +20.9%
3y return+59.4%S&P 500 +68.5%
5y return+53.4%S&P 500 +74.5%
These returns are for its stock picks as disclosed on Form 13F: last quarter's holdings, valued at this quarter's prices. They miss trades within each quarter, short positions, options, bonds, cash and fees, so they aren't the returns its clients got.
$100 invested in its stock picks
Since December 31, 2016: $312 against $334 in the S&P 500.2
Harbor Advisors LLCS&P 500 (SPY)
Top holdings
At the end of June 30, 2026. Change is in shares since the quarter before.2
| Stock | Value | Share of portfolio | Change |
|---|---|---|---|
| EQIXEquinix Inc | $249.4M | 31.4% | |
| MUMicron Technology Inc | $57.7M | 7.3% | −2.0% |
| GOOGLAlphabet Inc | $52.0M | 6.5% | |
| AAPLApple Inc | $42.9M | 5.4% | |
| AMZNAmazon Com Inc | $36.5M | 4.6% | |
| NVDANvidia Corporation | $36.0M | 4.5% | |
| CNQCanadian Nat Res Ltd Med Ter | $19.7M | 2.5% | |
| IBKRInteractive Brokers Group In | $16.3M | 2.0% | |
| Ftai Aviation LtdCUSIP G3730V105 | $15.4M | 1.9% | |
| MAMastercard Incorporated | $13.4M | 1.7% | |
| MSFTMicrosoft Corp | $9.9M | 1.2% | |
| FERGFerguson Enterprises Inc | $9.8M | 1.2% | |
| Bank Of N T Butterfield & SoCUSIP G0772R208 | $8.6M | 1.1% | |
| JPMJpmorgan Chase & Co | $7.9M | 1.0% | |
| METAMeta Platforms Inc | $7.8M | 1.0% | |
| Nebius Group N.v.CUSIP N97284108 | $7.6M | 1.0% | |
| GOOGAlphabet Inc | $7.1M | 0.9% | |
| PJTPjt Partners Inc | $6.3M | 0.8% | |
| NUENucor Corp | $6.2M | 0.8% | |
| SPGIS&p Global Inc | $5.6M | 0.7% | |
| DLRDigital Rlty Tr Inc | $5.5M | 0.7% | +19.6% |
| EVREvercore Inc | $5.1M | 0.6% | |
| CRWDCrowdstrike Hldgs Inc | $4.8M | 0.6% | |
| BLKBlackrock Inc | $3.8M | 0.5% | |
| WMTWalmart Inc | $3.7M | 0.5% |
Best picks still held
How each current holding has done since the quarter it first appeared in its filings (up to six years back).
| Stock | Held since | Return since | Now worth |
|---|---|---|---|
| NVDANvidia Corporation | June 30, 2020 | +2006.7% | $36.0M |
| Ftai Aviation LtdCUSIP G3730V105 | December 31, 2022 | +1480.2% | $15.4M |
| IBKRInteractive Brokers Group In | June 30, 2020 | +733.5% | $16.3M |
| EVREvercore Inc | June 30, 2020 | +479.5% | $5.1M |
| AMDAdvanced Micro Devices Inc | September 30, 2023 | +465.0% | $2.3M |
| NUENucor Corp | June 30, 2020 | +437.9% | $6.2M |
| CRWDCrowdstrike Hldgs Inc | June 30, 2023 | +419.6% | $4.8M |
| GOOGLAlphabet Inc | June 30, 2020 | +404.0% | $52.0M |
| GOOGAlphabet Inc | June 30, 2020 | +399.9% | $7.1M |
| CNQCanadian Nat Res Ltd Med Ter | June 30, 2020 | +354.1% | $19.7M |
Sold off last quarter
- CTRACoterra Energy Inc was $2.1M
- Exxon Mobil CorpCUSIP 30231G102 was $1.4M
- Liberty Global LtdCUSIP G61188127 was $285K
- VSNTVersant Media Group Inc was $278K
- HCAHca Healthcare Inc was $237K
- ISRGIntuitive Surgical Inc was $230K
- KGCKinross Gold Corp was $226K
- DOWDow Hldgs Inc was $208K
- HSYHershey Co was $208K
- BBarrick Mng Corp was $204K
Quarter by quarter
| Quarter | Its picks | S&P 500 |
|---|---|---|
| June 30, 2026 | +9.2% | +14.8% |
| March 31, 2026 | +6.1% | −4.6% |
| December 31, 2025 | +2.4% | +2.4% |
| September 30, 2025 | +5.9% | +7.8% |
| June 30, 2025 | +6.4% | +10.5% |
| March 31, 2025 | −9.5% | −4.6% |
| December 31, 2024 | +5.1% | +2.1% |
| September 30, 2024 | +9.1% | +5.4% |
| June 30, 2024 | −0.0% | +4.0% |
| March 31, 2024 | +6.2% | +10.0% |
| December 31, 2023 | +11.1% | +11.2% |
| September 30, 2023 | −2.7% | −3.6% |
| June 30, 2023 | +9.2% | +8.3% |
| March 31, 2023 | +8.5% | +7.0% |
| December 31, 2022 | +8.5% | +7.1% |
| September 30, 2022 | −9.4% | −5.3% |
| June 30, 2022 | −15.6% | −16.5% |
| March 31, 2022 | −8.1% | −4.9% |
| December 31, 2021 | +7.3% | +10.7% |
| September 30, 2021 | −0.6% | +0.3% |
Sources
Every number on this page points here. Each one links to the public record.
- 1SEC EDGAR: Harbor Advisors LLC Form 13F filingshttps://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1687156&type=13F-HR&dateb=&owner=include&count=40CIK 1687156
- 2SEC: 13F for the quarter ended June 30, 2026https://www.sec.gov/Archives/edgar/data/1687156/000121465926009081/Filed July 28, 2026 · accession 0001214659-26-009081