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← AQR Capital Management LLC, its record

AQR Capital Management LLC and Acadian Asset Management LLC: where the books meet

At Q2 2026, at least 39% of the two 13F books was the same, across 229 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%20%40%Q2 2013: 0.0%, 0 in bothQ3 2013: 21%, 135 in bothQ4 2013: 19%, 130 in bothQ1 2014: 20%, 134 in both14Q2 2014: 20%, 147 in bothQ3 2014: 21%, 145 in bothQ4 2014: 23%, 151 in bothQ1 2015: 27%, 152 in both15Q2 2015: 26%, 157 in bothQ3 2015: 24%, 164 in bothQ4 2015: 24%, 153 in bothQ1 2016: 23%, 169 in both16Q2 2016: 24%, 156 in bothQ3 2016: 25%, 159 in bothQ4 2016: 24%, 162 in bothQ1 2017: 23%, 159 in both17Q2 2017: 24%, 171 in bothQ3 2017: 25%, 174 in bothQ4 2017: 26%, 174 in bothQ1 2018: 26%, 183 in both18Q2 2018: 26%, 172 in bothQ3 2018: 26%, 170 in bothQ4 2018: 28%, 189 in bothQ1 2019: 29%, 188 in both19Q2 2019: 26%, 165 in bothQ3 2019: 29%, 193 in bothQ4 2019: 29%, 169 in bothQ1 2020: 33%, 178 in both20Q2 2020: 39%, 199 in bothQ3 2020: 40%, 194 in bothQ4 2020: 39%, 217 in bothQ1 2021: 38%, 204 in both21Q2 2021: 36%, 193 in bothQ3 2021: 34%, 201 in bothQ4 2021: 36%, 207 in bothQ1 2022: 35%, 217 in both22Q2 2022: 34%, 207 in bothQ3 2022: 34%, 202 in bothQ4 2022: 34%, 211 in bothQ1 2023: 33%, 211 in both23Q2 2023: 35%, 200 in bothQ3 2023: 35%, 210 in bothQ4 2023: 35%, 212 in bothQ1 2024: 34%, 197 in both24Q2 2024: 38%, 214 in bothQ3 2024: 36%, 195 in bothQ4 2024: 36%, 189 in bothQ1 2025: 35%, 207 in both25Q2 2025: 38%, 228 in bothQ3 2025: 36%, 227 in bothQ4 2025: 35%, 223 in bothQ1 2026: 37%, 243 in both26Q2 2026: 39%, 229 in both
  • Q2 2013: 0.0%, 0 in both
  • Q3 2013: 21%, 135 in both
  • Q4 2013: 19%, 130 in both
  • Q1 2014: 20%, 134 in both
  • Q2 2014: 20%, 147 in both
  • Q3 2014: 21%, 145 in both
  • Q4 2014: 23%, 151 in both
  • Q1 2015: 27%, 152 in both
  • Q2 2015: 26%, 157 in both
  • Q3 2015: 24%, 164 in both
  • Q4 2015: 24%, 153 in both
  • Q1 2016: 23%, 169 in both
  • Q2 2016: 24%, 156 in both
  • Q3 2016: 25%, 159 in both
  • Q4 2016: 24%, 162 in both
  • Q1 2017: 23%, 159 in both
  • Q2 2017: 24%, 171 in both
  • Q3 2017: 25%, 174 in both
  • Q4 2017: 26%, 174 in both
  • Q1 2018: 26%, 183 in both
  • Q2 2018: 26%, 172 in both
  • Q3 2018: 26%, 170 in both
  • Q4 2018: 28%, 189 in both
  • Q1 2019: 29%, 188 in both
  • Q2 2019: 26%, 165 in both
  • Q3 2019: 29%, 193 in both
  • Q4 2019: 29%, 169 in both
  • Q1 2020: 33%, 178 in both
  • Q2 2020: 39%, 199 in both
  • Q3 2020: 40%, 194 in both
  • Q4 2020: 39%, 217 in both
  • Q1 2021: 38%, 204 in both
  • Q2 2021: 36%, 193 in both
  • Q3 2021: 34%, 201 in both
  • Q4 2021: 36%, 207 in both
  • Q1 2022: 35%, 217 in both
  • Q2 2022: 34%, 207 in both
  • Q3 2022: 34%, 202 in both
  • Q4 2022: 34%, 211 in both
  • Q1 2023: 33%, 211 in both
  • Q2 2023: 35%, 200 in both
  • Q3 2023: 35%, 210 in both
  • Q4 2023: 35%, 212 in both
  • Q1 2024: 34%, 197 in both
  • Q2 2024: 38%, 214 in both
  • Q3 2024: 36%, 195 in both
  • Q4 2024: 36%, 189 in both
  • Q1 2025: 35%, 207 in both
  • Q2 2025: 38%, 228 in both
  • Q3 2025: 36%, 227 in both
  • Q4 2025: 35%, 223 in both
  • Q1 2026: 37%, 243 in both
  • Q2 2026: 39%, 229 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.

StockAQR Capital Management LLCAcadian Asset Management LLC
Nvidia Corp(NVDA)2.6%Added4.6%Added
Apple Inc(AAPL)1.7%Added5.5%Added
Micron Technology Inc(MU)1.5%Trimmed1.6%Trimmed
Microsoft Corp(MSFT)1.5%Added2.1%Trimmed
Amazon Com Inc(AMZN)1.0%Added2.4%Added
Broadcom Inc(AVGO)0.9%Added1.3%Added
Alphabet Inc(GOOG)0.8%Added1.2%Trimmed
Alphabet Inc(GOOGL)0.7%Added2.6%Trimmed
Bristol Myers Squibb Co(BMY)0.5%Trimmed0.8%Trimmed
Airbnb Inc(ABNB)0.5%Added1.0%Added
Lam Research Corp(LRCX)0.5%Added1.1%Trimmed
Centene Corp Del(CNC)0.6%Trimmed0.5%Added
Intel Corp(INTC)0.5%Trimmed0.5%Added
Fortinet Inc(FTNT)0.5%Added0.8%Added
Lilly Eli & Co(LLY)0.4%Added0.7%Trimmed
Tesla MTRS Inc(TSLA)0.4%Added0.5%Trimmed
Facebook Inc(META)0.4%Added1.3%Added
Seagate Technology Hldngs PL(STX)0.4%Added0.5%Trimmed
Berkshire Hathaway Inc Del(BRK-B)0.4%Added0.7%Trimmed
Costco WHSL Corp New(COST)0.4%Added1.3%Added

and 209 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.

  • Microsoft Corp(MSFT)AQR Capital Management LLC added; Acadian Asset Management LLC trimmed
  • Alphabet Inc(GOOG)AQR Capital Management LLC added; Acadian Asset Management LLC trimmed
  • Alphabet Inc(GOOGL)AQR Capital Management LLC added; Acadian Asset Management LLC trimmed
  • Comfort Sys USA Inc(FIX)AQR Capital Management LLC trimmed; Acadian Asset Management LLC added
  • Centene Corp Del(CNC)AQR Capital Management LLC trimmed; Acadian Asset Management LLC added
  • Ge Vernova Inc(GEV)AQR Capital Management LLC added; Acadian Asset Management LLC trimmed
  • Bank N S Halifax(BNS)AQR Capital Management LLC trimmed; Acadian Asset Management LLC added
  • Lam Research Corp(LRCX)AQR Capital Management LLC added; Acadian Asset Management LLC trimmed
  • Intel Corp(INTC)AQR Capital Management LLC trimmed; Acadian Asset Management LLC added
  • Applied Matls Inc(AMAT)AQR Capital Management LLC added; Acadian Asset Management LLC trimmed
  • Lilly Eli & Co(LLY)AQR Capital Management LLC added; Acadian Asset Management LLC trimmed
  • Tesla MTRS Inc(TSLA)AQR Capital Management LLC added; Acadian Asset Management LLC trimmed
AQR Capital Management LLC: the recordAcadian Asset Management LLC: the record

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