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← Renaissance Technologies LLC, its record

Renaissance Technologies LLC and Acadian Asset Management LLC: where the books meet

At Q2 2026, at least 23% of the two 13F books was the same, across 169 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%12%23%Q2 2013: 0.0%, 0 in bothQ3 2013: 14%, 119 in bothQ4 2013: 13%, 108 in bothQ1 2014: 12%, 113 in both14Q2 2014: 15%, 129 in bothQ3 2014: 14%, 126 in bothQ4 2014: 16%, 126 in bothQ1 2015: 15%, 119 in both15Q2 2015: 14%, 124 in bothQ3 2015: 15%, 131 in bothQ4 2015: 17%, 149 in bothQ1 2016: 15%, 142 in both16Q2 2016: 13%, 139 in bothQ3 2016: 16%, 147 in bothQ4 2016: 14%, 136 in bothQ1 2017: 16%, 142 in both17Q2 2017: 17%, 145 in bothQ3 2017: 19%, 157 in bothQ4 2017: 17%, 149 in bothQ1 2018: 17%, 147 in both18Q2 2018: 17%, 166 in bothQ3 2018: 17%, 160 in bothQ4 2018: 17%, 154 in bothQ1 2019: 17%, 158 in both19Q2 2019: 14%, 132 in bothQ3 2019: 16%, 142 in bothQ4 2019: 14%, 132 in bothQ1 2020: 17%, 155 in both20Q2 2020: 23%, 188 in bothQ3 2020: 23%, 184 in bothQ4 2020: 21%, 164 in bothQ1 2021: 20%, 176 in both21Q2 2021: 21%, 161 in bothQ3 2021: 22%, 165 in bothQ4 2021: 22%, 165 in bothQ1 2022: 22%, 161 in both22Q2 2022: 21%, 161 in bothQ3 2022: 23%, 162 in bothQ4 2022: 22%, 176 in bothQ1 2023: 20%, 167 in both23Q2 2023: 22%, 164 in bothQ3 2023: 20%, 166 in bothQ4 2023: 22%, 180 in bothQ1 2024: 20%, 160 in both24Q2 2024: 20%, 174 in bothQ3 2024: 20%, 164 in bothQ4 2024: 20%, 165 in bothQ1 2025: 19%, 162 in both25Q2 2025: 21%, 169 in bothQ3 2025: 23%, 195 in bothQ4 2025: 21%, 184 in bothQ1 2026: 19%, 171 in both26Q2 2026: 23%, 169 in both
  • Q2 2013: 0.0%, 0 in both
  • Q3 2013: 14%, 119 in both
  • Q4 2013: 13%, 108 in both
  • Q1 2014: 12%, 113 in both
  • Q2 2014: 15%, 129 in both
  • Q3 2014: 14%, 126 in both
  • Q4 2014: 16%, 126 in both
  • Q1 2015: 15%, 119 in both
  • Q2 2015: 14%, 124 in both
  • Q3 2015: 15%, 131 in both
  • Q4 2015: 17%, 149 in both
  • Q1 2016: 15%, 142 in both
  • Q2 2016: 13%, 139 in both
  • Q3 2016: 16%, 147 in both
  • Q4 2016: 14%, 136 in both
  • Q1 2017: 16%, 142 in both
  • Q2 2017: 17%, 145 in both
  • Q3 2017: 19%, 157 in both
  • Q4 2017: 17%, 149 in both
  • Q1 2018: 17%, 147 in both
  • Q2 2018: 17%, 166 in both
  • Q3 2018: 17%, 160 in both
  • Q4 2018: 17%, 154 in both
  • Q1 2019: 17%, 158 in both
  • Q2 2019: 14%, 132 in both
  • Q3 2019: 16%, 142 in both
  • Q4 2019: 14%, 132 in both
  • Q1 2020: 17%, 155 in both
  • Q2 2020: 23%, 188 in both
  • Q3 2020: 23%, 184 in both
  • Q4 2020: 21%, 164 in both
  • Q1 2021: 20%, 176 in both
  • Q2 2021: 21%, 161 in both
  • Q3 2021: 22%, 165 in both
  • Q4 2021: 22%, 165 in both
  • Q1 2022: 22%, 161 in both
  • Q2 2022: 21%, 161 in both
  • Q3 2022: 23%, 162 in both
  • Q4 2022: 22%, 176 in both
  • Q1 2023: 20%, 167 in both
  • Q2 2023: 22%, 164 in both
  • Q3 2023: 20%, 166 in both
  • Q4 2023: 22%, 180 in both
  • Q1 2024: 20%, 160 in both
  • Q2 2024: 20%, 174 in both
  • Q3 2024: 20%, 164 in both
  • Q4 2024: 20%, 165 in both
  • Q1 2025: 19%, 162 in both
  • Q2 2025: 21%, 169 in both
  • Q3 2025: 23%, 195 in both
  • Q4 2025: 21%, 184 in both
  • Q1 2026: 19%, 171 in both
  • Q2 2026: 23%, 169 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.

StockRenaissance Technologies LLCAcadian Asset Management LLC
Nvidia Corp(NVDA)2.0%Added4.6%Added
Facebook Inc(META)1.6%Added1.3%Added
Alphabet Inc(GOOGL)1.1%Added2.6%Trimmed
Alphabet Inc(GOOG)0.8%Added1.2%Trimmed
Amazon Com Inc(AMZN)0.8%New2.4%Added
Advanced Micro Devices Inc(AMD)0.6%Added0.7%Added
Apple Inc(AAPL)0.6%Trimmed5.5%Added
Seagate Technology Hldngs PL(STX)0.6%Added0.5%Trimmed
Intel Corp(INTC)1.4%Trimmed0.5%Added
Tesla MTRS Inc(TSLA)0.6%Added0.5%Trimmed
Broadcom Inc(AVGO)0.4%Added1.3%Added
Western Digital Corp(WDC)0.5%Trimmed0.4%Trimmed
Texas Instrs Inc(TXN)0.6%Added0.4%Added
TJX Cos Inc New(TJX)0.4%Added0.8%Added
Micron Technology Inc(MU)0.3%Trimmed1.6%Trimmed
Netflix Inc(NFLX)0.7%Added0.3%Added
Chevron Corp New(CVX)0.7%Added0.3%Trimmed
Airbnb Inc(ABNB)0.3%Trimmed1.0%Added
Dell Technologies Inc(DELL)0.4%Trimmed0.3%Added
Zoom Video Communications In(ZM)0.3%Trimmed0.4%Added

and 149 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)Renaissance Technologies LLC trimmed; Acadian Asset Management LLC added
  • Alphabet Inc(GOOGL)Renaissance Technologies LLC added; Acadian Asset Management LLC trimmed
  • Intel Corp(INTC)Renaissance Technologies LLC trimmed; Acadian Asset Management LLC added
  • Alphabet Inc(GOOG)Renaissance Technologies LLC added; Acadian Asset Management LLC trimmed
  • United Therapeutics Corp Del(UTHR)Renaissance Technologies LLC trimmed; Acadian Asset Management LLC added
  • Palantir Technologies Inc(PLTR)Renaissance Technologies LLC added; Acadian Asset Management LLC trimmed
  • Citigroup Inc(C)Renaissance Technologies LLC sold out; Acadian Asset Management LLC added
  • Colgate Palmolive Co(CL)Renaissance Technologies LLC trimmed; Acadian Asset Management LLC added
  • Airbnb Inc(ABNB)Renaissance Technologies LLC trimmed; Acadian Asset Management LLC added
  • Exelixis Inc(EXEL)Renaissance Technologies LLC trimmed; Acadian Asset Management LLC added
  • Logitech Intl(LOGI)Renaissance Technologies LLC trimmed; Acadian Asset Management LLC added
  • Toronto Dominion BK Ont(TD)Renaissance Technologies LLC added; Acadian Asset Management LLC trimmed
Renaissance Technologies LLC: the recordAcadian Asset Management LLC: the record

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