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← PDT Partners LLC, its record

PDT Partners LLC and Acadian Asset Management LLC: where the books meet

At Q2 2026, at least 12% of the two 13F books was the same, across 108 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.

Overlap by quarter
0%7%14%Q2 2013: 0.0%, 0 in bothQ3 2013: 8.5%, 92 in bothQ4 2013: 6.6%, 90 in bothQ1 2014: 9.1%, 87 in both14Q2 2014: 11%, 101 in bothQ3 2014: 13%, 115 in bothQ4 2014: 8.4%, 87 in bothQ1 2015: 11%, 107 in both15Q2 2015: 9.5%, 92 in bothQ3 2015: 12%, 111 in bothQ4 2015: 8.4%, 72 in bothQ1 2016: 8.2%, 90 in both16Q2 2016: 8.9%, 79 in bothQ3 2016: 10%, 84 in bothQ4 2016: 10%, 83 in bothQ1 2017: 7.7%, 82 in both17Q2 2017: 8.3%, 92 in bothQ3 2017: 10%, 98 in bothQ4 2017: 11%, 93 in bothQ1 2018: 8.8%, 92 in both18Q2 2018: 10%, 83 in bothQ3 2018: 11%, 84 in bothQ4 2018: 12%, 84 in bothQ1 2019: 12%, 72 in both19Q2 2019: 9.9%, 61 in bothQ3 2019: 7.9%, 63 in bothQ4 2019: 9.3%, 83 in bothQ1 2020: 9.1%, 88 in both20Q2 2020: 9.2%, 92 in bothQ3 2020: 11%, 95 in bothQ4 2020: 8.4%, 81 in bothQ1 2021: 9.0%, 99 in both21Q2 2021: 9.7%, 88 in bothQ3 2021: 12%, 96 in bothQ4 2021: 13%, 105 in bothQ1 2022: 10%, 95 in both22Q2 2022: 11%, 99 in bothQ3 2022: 9.9%, 95 in bothQ4 2022: 12%, 95 in bothQ1 2023: 12%, 99 in both23Q2 2023: 11%, 96 in bothQ3 2023: 11%, 86 in bothQ4 2023: 11%, 76 in bothQ1 2024: 11%, 84 in both24Q2 2024: 12%, 101 in bothQ3 2024: 11%, 99 in bothQ4 2024: 11%, 100 in bothQ1 2025: 12%, 108 in both25Q2 2025: 11%, 115 in bothQ3 2025: 10%, 100 in bothQ4 2025: 10%, 96 in bothQ1 2026: 13%, 107 in both26Q2 2026: 12%, 108 in both
  • Q2 2013: 0.0%, 0 in both
  • Q3 2013: 8.5%, 92 in both
  • Q4 2013: 6.6%, 90 in both
  • Q1 2014: 9.1%, 87 in both
  • Q2 2014: 11%, 101 in both
  • Q3 2014: 13%, 115 in both
  • Q4 2014: 8.4%, 87 in both
  • Q1 2015: 11%, 107 in both
  • Q2 2015: 9.5%, 92 in both
  • Q3 2015: 12%, 111 in both
  • Q4 2015: 8.4%, 72 in both
  • Q1 2016: 8.2%, 90 in both
  • Q2 2016: 8.9%, 79 in both
  • Q3 2016: 10%, 84 in both
  • Q4 2016: 10%, 83 in both
  • Q1 2017: 7.7%, 82 in both
  • Q2 2017: 8.3%, 92 in both
  • Q3 2017: 10%, 98 in both
  • Q4 2017: 11%, 93 in both
  • Q1 2018: 8.8%, 92 in both
  • Q2 2018: 10%, 83 in both
  • Q3 2018: 11%, 84 in both
  • Q4 2018: 12%, 84 in both
  • Q1 2019: 12%, 72 in both
  • Q2 2019: 9.9%, 61 in both
  • Q3 2019: 7.9%, 63 in both
  • Q4 2019: 9.3%, 83 in both
  • Q1 2020: 9.1%, 88 in both
  • Q2 2020: 9.2%, 92 in both
  • Q3 2020: 11%, 95 in both
  • Q4 2020: 8.4%, 81 in both
  • Q1 2021: 9.0%, 99 in both
  • Q2 2021: 9.7%, 88 in both
  • Q3 2021: 12%, 96 in both
  • Q4 2021: 13%, 105 in both
  • Q1 2022: 10%, 95 in both
  • Q2 2022: 11%, 99 in both
  • Q3 2022: 9.9%, 95 in both
  • Q4 2022: 12%, 95 in both
  • Q1 2023: 12%, 99 in both
  • Q2 2023: 11%, 96 in both
  • Q3 2023: 11%, 86 in both
  • Q4 2023: 11%, 76 in both
  • Q1 2024: 11%, 84 in both
  • Q2 2024: 12%, 101 in both
  • Q3 2024: 11%, 99 in both
  • Q4 2024: 11%, 100 in both
  • Q1 2025: 12%, 108 in both
  • Q2 2025: 11%, 115 in both
  • Q3 2025: 10%, 100 in both
  • Q4 2025: 10%, 96 in both
  • Q1 2026: 13%, 107 in both
  • Q2 2026: 12%, 108 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.

StockPDT Partners LLCAcadian Asset Management LLC
Nvidia Corp(NVDA)0.9%Held4.6%Added
Logitech Intl S A(LOGI)0.7%Trimmed0.7%Added
Suncor Energy Inc New(SU)1.1%Added0.6%Trimmed
TJX Cos Inc New(TJX)0.6%Added0.8%Added
Seagate Technology Hldngs PL(STX)1.0%New0.5%Trimmed
Intel Corp(INTC)1.0%New0.5%Added
CDN Imperial BK of Commerce(CM)0.5%Trimmed1.3%Added
Abbvie Inc(ABBV)0.5%Added0.6%Trimmed
Chevron Corp New(CVX)1.0%Added0.3%Trimmed
Broadcom LTD(AVGO)0.3%Trimmed1.3%Added
778296103(ROST)0.3%Added0.5%Added
Bank N S Halifax(BNS)0.3%Trimmed1.9%Added
Humana Inc(HUM)0.8%Trimmed0.3%Added
Mckesson Corp(MCK)0.9%New0.2%Trimmed
Ge Aerospace(GE)0.3%Trimmed0.2%Trimmed
Te Connectivity PLC(TEL)0.3%Trimmed0.2%Trimmed
Marvell Technology Inc(MRVL)0.8%Added0.2%Trimmed
Expedia Inc Del(EXPE)0.2%Trimmed0.4%Added
UBS Group AG(UBS)0.2%Trimmed0.2%Added
Anthem Inc(ELV)0.2%New0.5%Added

and 88 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.

  • Bank N S Halifax(BNS)PDT Partners LLC trimmed; Acadian Asset Management LLC added
  • CDN Imperial BK of Commerce(CM)PDT Partners LLC trimmed; Acadian Asset Management LLC added
  • Broadcom LTD(AVGO)PDT Partners LLC trimmed; Acadian Asset Management LLC added
  • Airbnb Inc(ABNB)PDT Partners LLC trimmed; Acadian Asset Management LLC added
  • JPMorgan Chase & Co(JPM)PDT Partners LLC started; Acadian Asset Management LLC trimmed
  • Logitech Intl S A(LOGI)PDT Partners LLC trimmed; Acadian Asset Management LLC added
  • Toronto Dominion BK Ont(TD)PDT Partners LLC added; Acadian Asset Management LLC trimmed
  • Suncor Energy Inc New(SU)PDT Partners LLC added; Acadian Asset Management LLC trimmed
  • Abbvie Inc(ABBV)PDT Partners LLC added; Acadian Asset Management LLC trimmed
  • Seagate Technology Hldngs PL(STX)PDT Partners LLC started; Acadian Asset Management LLC trimmed
  • Bank of America Corporation(BAC)PDT Partners LLC started; Acadian Asset Management LLC trimmed
  • Expedia Inc Del(EXPE)PDT Partners LLC trimmed; Acadian Asset Management LLC added
PDT Partners LLC: the recordAcadian Asset Management LLC: the record

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