Harris Associates LP and Acadian Asset Management LLC: where the books meet
At Q2 2026, at least 13% of the two 13F books was the same, across 66 stocks both listed, against 0.0% at Q2 2013. Overlap is the smaller of each shared stock’s two weights, added up: the part of one book that could be swapped for the other’s without a trade.
- Q2 2013: 0.0%, 0 in both
- Q3 2013: 6.5%, 49 in both
- Q4 2013: 8.3%, 51 in both
- Q1 2014: 8.3%, 53 in both
- Q2 2014: 6.0%, 56 in both
- Q3 2014: 7.6%, 52 in both
- Q4 2014: 7.2%, 53 in both
- Q1 2015: 6.1%, 46 in both
- Q2 2015: 5.6%, 35 in both
- Q3 2015: 4.3%, 27 in both
- Q4 2015: 4.9%, 27 in both
- Q1 2016: 3.7%, 29 in both
- Q2 2016: 4.3%, 23 in both
- Q3 2016: 7.3%, 34 in both
- Q4 2016: 9.8%, 34 in both
- Q1 2017: 9.6%, 31 in both
- Q2 2017: 9.0%, 35 in both
- Q3 2017: 8.5%, 38 in both
- Q4 2017: 6.4%, 39 in both
- Q1 2018: 6.0%, 33 in both
- Q2 2018: 6.9%, 34 in both
- Q3 2018: 6.8%, 29 in both
- Q4 2018: 5.0%, 29 in both
- Q1 2019: 4.5%, 32 in both
- Q2 2019: 4.8%, 27 in both
- Q3 2019: 5.8%, 32 in both
- Q4 2019: 6.2%, 30 in both
- Q1 2020: 7.5%, 29 in both
- Q2 2020: 9.2%, 41 in both
- Q3 2020: 9.4%, 41 in both
- Q4 2020: 8.7%, 48 in both
- Q1 2021: 11%, 47 in both
- Q2 2021: 14%, 44 in both
- Q3 2021: 17%, 50 in both
- Q4 2021: 14%, 48 in both
- Q1 2022: 13%, 54 in both
- Q2 2022: 9.1%, 53 in both
- Q3 2022: 8.3%, 52 in both
- Q4 2022: 7.7%, 59 in both
- Q1 2023: 7.6%, 57 in both
- Q2 2023: 9.0%, 55 in both
- Q3 2023: 9.9%, 52 in both
- Q4 2023: 7.8%, 49 in both
- Q1 2024: 7.5%, 44 in both
- Q2 2024: 8.6%, 54 in both
- Q3 2024: 8.6%, 54 in both
- Q4 2024: 9.3%, 50 in both
- Q1 2025: 9.3%, 60 in both
- Q2 2025: 11%, 72 in both
- Q3 2025: 10%, 73 in both
- Q4 2025: 11%, 70 in both
- Q1 2026: 12%, 69 in both
- Q2 2026: 13%, 66 in both
Only quarters both managers filed. Where either filing has more positions than are read each quarter, a stock both hold below that range is not counted, so the figure is a floor.
What the overlap is made of, Q2 2026
Stocks both listed, by the smaller of the two weights. A weight is the stock’s share of that manager’s reported book, which says how large the position is, not how strongly it is held.
| Stock | Harris Associates LP | Acadian Asset Management LLC |
|---|---|---|
| Alphabet Inc(GOOGL) | 3.0%Trimmed | 2.6%Trimmed |
| Amazon Com Inc(AMZN) | 1.5%Trimmed | 2.4%Added |
| Citigroup Inc(C) | 1.6%Trimmed | 1.0%Added |
| Airbnb Inc(ABNB) | 3.6%Trimmed | 1.0%Added |
| Alphabet Inc(GOOG) | 0.9%Added | 1.2%Trimmed |
| Merck & Co Inc New(MRK) | 2.1%Trimmed | 0.6%Trimmed |
| Elevance Health Inc(ELV) | 2.5%Added | 0.5%Added |
| Centene Corp Del(CNC) | 0.9%Trimmed | 0.5%Added |
| Bank of America Corporation(BAC) | 1.7%Added | 0.5%Trimmed |
| Booking HLDGS Inc(BKNG) | 0.4%New | 0.6%Added |
| Netflix Inc(NFLX) | 1.0%Added | 0.3%Added |
| Fomento Economico Mexicano SA(FMX) | 0.3%Trimmed | 0.3%Added |
| Te Connectivity PLC(TEL) | 0.8%Added | 0.2%Trimmed |
| Adobe Systems Incorporated(ADBE) | 0.8%Added | 0.2%Trimmed |
| Visa Inc(V) | 0.3%Trimmed | 0.2%Trimmed |
| State STR Corp(STT) | 1.1%Trimmed | 0.2%Added |
| Marsh & Mclennan Cos Inc(MRSH) | 1.9%Added | 0.1%Trimmed |
| Corteva Inc(CTVA) | 1.8%Trimmed | 0.1%Trimmed |
| Molina Healthcare Inc(MOH) | 0.3%Trimmed | 0.1%Added |
| Oracle Corp(ORCL) | 0.1%Trimmed | 0.1%Trimmed |
and 46 smaller ones
Moved different ways in Q2 2026
Stocks one manager started or added to while the other trimmed or sold out, between the same two quarter ends. A 13F shows the quarter ends, never when in between anything was bought or sold, or why.
- Apple Inc(AAPL)Harris Associates LP trimmed; Acadian Asset Management LLC added
- Airbnb Inc(ABNB)Harris Associates LP trimmed; Acadian Asset Management LLC added
- Salesforce Com Inc(CRM)Harris Associates LP added; Acadian Asset Management LLC trimmed
- Schwab Charles Corp New(SCHW)Harris Associates LP added; Acadian Asset Management LLC trimmed
- Amazon Com Inc(AMZN)Harris Associates LP trimmed; Acadian Asset Management LLC added
- Microsoft Corp(MSFT)Harris Associates LP added; Acadian Asset Management LLC trimmed
- American Intl Group Inc(AIG)Harris Associates LP trimmed; Acadian Asset Management LLC started
- Marsh & Mclennan Cos Inc(MRSH)Harris Associates LP added; Acadian Asset Management LLC trimmed
- Bank of America Corporation(BAC)Harris Associates LP added; Acadian Asset Management LLC trimmed
- Micron Technology Inc(MU)Harris Associates LP started; Acadian Asset Management LLC trimmed
- Citigroup Inc(C)Harris Associates LP trimmed; Acadian Asset Management LLC added
- Costco WHSL Corp New(COST)Harris Associates LP trimmed; Acadian Asset Management LLC added
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