1y return+15.0%S&P 500 +20.9%
3y return+49.4%S&P 500 +68.5%
5y return+57.8%S&P 500 +74.5%
10y return+186.8%S&P 500 +256.5%
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 June 30, 2016: $287 against $357 in the S&P 500.2
Parthenon 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 |
|---|---|---|---|
| MSFTMicrosoft Corp | $84.8M | 8.8% | |
| BRK/BBerkshire Hathaway Inc Del | $68.4M | 7.1% | −1.1% |
| GLWCorning Inc | $58.5M | 6.1% | |
| GOOGLAlphabet Inc | $54.1M | 5.6% | −3.6% |
| GOOGAlphabet Inc | $38.7M | 4.0% | −3.0% |
| METAMeta Platforms Inc | $38.0M | 4.0% | |
| AAPLApple Inc | $36.8M | 3.8% | |
| JNJJohnson & Johnson | $30.5M | 3.2% | |
| WMTWalmart Inc | $25.5M | 2.7% | |
| FASTFastenal Co | $25.3M | 2.6% | −2.9% |
| PAYXPaychex Inc | $24.4M | 2.5% | |
| Exxon Mobil CorpCUSIP 30231G102 | $23.5M | 2.4% | −1.8% |
| DOVDover Corp | $23.4M | 2.4% | |
| CSCOCisco Sys Inc | $23.0M | 2.4% | −1.3% |
| AXPAmerican Express Co | $22.5M | 2.3% | |
| MRKMerck & Co Inc | $19.2M | 2.0% | −2.2% |
| PGProcter & Gamble Co | $18.5M | 1.9% | −4.8% |
| BKNGBooking Holdings Inc | $17.0M | 1.8% | |
| LSTRLandstar Sys Inc | $13.9M | 1.4% | |
| JPMJpmorgan Chase & Co | $13.7M | 1.4% | |
| PEPPepsico Inc | $13.7M | 1.4% | +1.1% |
| Icon Pub Ltd CoCUSIP G4705A100 | $13.7M | 1.4% | |
| SCHWSchwab Charles Corp | $12.2M | 1.3% | |
| SYKStryker Corporation | $11.8M | 1.2% | |
| CVSCvs Health Corp | $11.6M | 1.2% | −1.1% |
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 |
|---|---|---|---|
| GLWCorning Inc | June 30, 2020 | +886.1% | $58.5M |
| GOOGLAlphabet Inc | June 30, 2020 | +404.0% | $54.1M |
| GOOGAlphabet Inc | June 30, 2020 | +399.9% | $38.7M |
| GEGe Aerospace | September 30, 2021 | +262.7% | $8.2M |
| AXPAmerican Express Co | June 30, 2020 | +255.3% | $22.5M |
| JPMJpmorgan Chase & Co | June 30, 2020 | +248.0% | $13.7M |
| AAPLApple Inc | June 30, 2020 | +217.3% | $36.8M |
| Exxon Mobil CorpCUSIP 30231G102 | June 30, 2020 | +205.7% | $23.5M |
| WMTWalmart Inc | June 30, 2020 | +183.7% | $25.5M |
| BRK/BBerkshire Hathaway Inc Del | June 30, 2020 | +180.3% | $68.4M |
Sold off last quarter
- USMVIshares Tr was $573K
- WSBCWesbanco Inc was $444K
- AMGNAmgen Inc was $414K
- Honeywell Intl IncCUSIP 438516106 was $283K
- CMCSAComcast Corp New was $212K
Quarter by quarter
| Quarter | Its picks | S&P 500 |
|---|---|---|
| June 30, 2026 | +11.0% | +14.8% |
| March 31, 2026 | −4.7% | −4.6% |
| December 31, 2025 | +2.5% | +2.4% |
| September 30, 2025 | +6.1% | +7.8% |
| June 30, 2025 | +6.7% | +10.5% |
| March 31, 2025 | −0.9% | −4.6% |
| December 31, 2024 | −0.3% | +2.1% |
| September 30, 2024 | +6.2% | +5.4% |
| June 30, 2024 | +0.8% | +4.0% |
| March 31, 2024 | +9.4% | +10.0% |
| December 31, 2023 | +8.6% | +11.2% |
| September 30, 2023 | −3.0% | −3.6% |
| June 30, 2023 | +6.7% | +8.3% |
| March 31, 2023 | +6.0% | +7.0% |
| December 31, 2022 | +9.6% | +7.1% |
| September 30, 2022 | −6.5% | −5.3% |
| June 30, 2022 | −14.2% | −16.5% |
| March 31, 2022 | −3.9% | −4.9% |
| December 31, 2021 | +10.1% | +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: Parthenon LLC Form 13F filingshttps://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1088859&type=13F-HR&dateb=&owner=include&count=40CIK 1088859
- 2SEC: 13F for the quarter ended June 30, 2026https://www.sec.gov/Archives/edgar/data/1088859/000108885926000004/Filed July 23, 2026 · accession 0001088859-26-000004