1y return+10.6%S&P 500 +20.9%
3y return+48.1%S&P 500 +68.5%
5y return+66.7%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, 2017: $249 against $280 in the S&P 500.2
Port Capital 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 |
|---|---|---|---|
| HEI/AHeico Corp New | $207.5M | 8.5% | −2.6% |
| RBCRbc Bearings Inc | $187.0M | 7.6% | −15.6% |
| TDYTeledyne Technologies Inc | $162.9M | 6.6% | −2.6% |
| APHAmphenol Corp | $131.1M | 5.4% | −8.5% |
| SPXCSpx Technologies Inc | $109.2M | 4.5% | −3.3% |
| AMEAmetek Inc | $102.4M | 4.2% | −2.1% |
| WTSWatts Water Technologies Inc | $97.4M | 4.0% | −3.3% |
| Linde PLCCUSIP G54950103 | $87.3M | 3.6% | −1.6% |
| ORLYOreilly Automotive Inc | $85.5M | 3.5% | −1.5% |
| SSDSimpson Mfg Inc | $82.6M | 3.4% | −3.4% |
| PHParker-hannifin Corp | $81.1M | 3.3% | −2.0% |
| RLIRli Corp | $79.5M | 3.2% | −3.0% |
| GGGGraco Inc | $67.0M | 2.7% | −3.3% |
| CACICaci Intl Inc | $55.9M | 2.3% | +17.8% |
| ATMUAtmus Filtration Technologies | $52.7M | 2.2% | +13.8% |
| PGRProgressive Corp | $51.9M | 2.1% | −2.7% |
| MAMastercard Incorporated | $50.1M | 2.0% | −1.3% |
| Eaton Corp PLCCUSIP G29183103 | $48.4M | 2.0% | +5.7% |
| Arch Cap Group LtdCUSIP G0450A105 | $48.2M | 2.0% | −2.3% |
| ULSUl Solutions Inc | $48.0M | 2.0% | −18.8% |
| CPCanadian Pacific Kansas City | $47.9M | 2.0% | −2.0% |
| ICEIntercontinental Exchange Inc | $44.4M | 1.8% | −1.6% |
| VVisa Inc | $42.1M | 1.7% | +4.8% |
| CPRTCopart Inc | $40.8M | 1.7% | −3.3% |
| SHWSherwin Williams Co | $40.5M | 1.7% | −1.6% |
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 |
|---|---|---|---|
| APHAmphenol Corp | June 30, 2020 | +636.1% | $131.1M |
| RBCRbc Bearings Inc | June 30, 2020 | +380.5% | $187.0M |
| Arch Cap Group LtdCUSIP G0450A105 | June 30, 2020 | +238.8% | $48.2M |
| ORLYOreilly Automotive Inc | June 30, 2020 | +227.6% | $85.5M |
| HEI/AHeico Corp New | June 30, 2020 | +217.5% | $207.5M |
| AAPLApple Inc | June 30, 2020 | +217.3% | $13.9M |
| PGRProgressive Corp | June 30, 2020 | +172.7% | $51.9M |
| AMEAmetek Inc | June 30, 2020 | +170.7% | $102.4M |
| SSDSimpson Mfg Inc | June 30, 2020 | +148.2% | $82.6M |
| WINAWinmark Corp | June 30, 2020 | +147.1% | $36.7M |
Sold off last quarter
- Honeywell Intl IncCUSIP 438516106 was $260K
Quarter by quarter
| Quarter | Its picks | S&P 500 |
|---|---|---|
| June 30, 2026 | +10.6% | +14.8% |
| March 31, 2026 | −0.5% | −4.6% |
| December 31, 2025 | −1.5% | +2.4% |
| September 30, 2025 | +2.1% | +7.8% |
| June 30, 2025 | +4.9% | +10.5% |
| March 31, 2025 | +2.2% | −4.6% |
| December 31, 2024 | −2.3% | +2.1% |
| September 30, 2024 | +10.3% | +5.4% |
| June 30, 2024 | −2.9% | +4.0% |
| March 31, 2024 | +9.9% | +10.0% |
| December 31, 2023 | +10.4% | +11.2% |
| September 30, 2023 | −1.7% | −3.6% |
| June 30, 2023 | +5.0% | +8.3% |
| March 31, 2023 | +6.9% | +7.0% |
| December 31, 2022 | +13.1% | +7.1% |
| September 30, 2022 | −2.2% | −5.3% |
| June 30, 2022 | −11.0% | −16.5% |
| March 31, 2022 | −7.4% | −4.9% |
| December 31, 2021 | +10.5% | +10.7% |
| September 30, 2021 | −0.4% | +0.3% |
Sources
Every number on this page points here. Each one links to the public record.
- 1SEC EDGAR: Port Capital LLC Form 13F filingshttps://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1729212&type=13F-HR&dateb=&owner=include&count=40CIK 1729212
- 2SEC: 13F for the quarter ended June 30, 2026https://www.sec.gov/Archives/edgar/data/1729212/000110465926097336/Filed August 14, 2026 · accession 0001104659-26-097336