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← Holocene Advisors LP, its record

Holocene Advisors LP and Arrowstreet Capital LP: where the books meet

At Q2 2026, at least 28% of the two 13F books was the same, across 170 stocks both listed, against 11% at Q4 2017. 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%15%30%Q4 2017: 11%, 99 in bothQ1 2018: 13%, 109 in both18Q2 2018: 12%, 93 in bothQ3 2018: 11%, 100 in bothQ4 2018: 13%, 106 in bothQ1 2019: 12%, 122 in both19Q2 2019: 13%, 116 in bothQ3 2019: 13%, 116 in bothQ4 2019: 11%, 118 in bothQ1 2020: 19%, 142 in both20Q2 2020: 17%, 143 in bothQ3 2020: 15%, 166 in bothQ4 2020: 14%, 142 in bothQ1 2021: 20%, 146 in both21Q2 2021: 18%, 128 in bothQ3 2021: 17%, 117 in bothQ4 2021: 16%, 112 in bothQ1 2022: 20%, 132 in both22Q2 2022: 20%, 132 in bothQ3 2022: 24%, 140 in bothQ4 2022: 22%, 151 in bothQ1 2023: 26%, 144 in both23Q2 2023: 24%, 143 in bothQ3 2023: 22%, 146 in bothQ4 2023: 20%, 146 in bothQ1 2024: 19%, 133 in both24Q2 2024: 19%, 142 in bothQ3 2024: 18%, 136 in bothQ4 2024: 25%, 145 in bothQ1 2025: 26%, 150 in both25Q2 2025: 30%, 161 in bothQ3 2025: 27%, 163 in bothQ4 2025: 29%, 163 in bothQ1 2026: 28%, 166 in both26Q2 2026: 28%, 170 in both
  • Q4 2017: 11%, 99 in both
  • Q1 2018: 13%, 109 in both
  • Q2 2018: 12%, 93 in both
  • Q3 2018: 11%, 100 in both
  • Q4 2018: 13%, 106 in both
  • Q1 2019: 12%, 122 in both
  • Q2 2019: 13%, 116 in both
  • Q3 2019: 13%, 116 in both
  • Q4 2019: 11%, 118 in both
  • Q1 2020: 19%, 142 in both
  • Q2 2020: 17%, 143 in both
  • Q3 2020: 15%, 166 in both
  • Q4 2020: 14%, 142 in both
  • Q1 2021: 20%, 146 in both
  • Q2 2021: 18%, 128 in both
  • Q3 2021: 17%, 117 in both
  • Q4 2021: 16%, 112 in both
  • Q1 2022: 20%, 132 in both
  • Q2 2022: 20%, 132 in both
  • Q3 2022: 24%, 140 in both
  • Q4 2022: 22%, 151 in both
  • Q1 2023: 26%, 144 in both
  • Q2 2023: 24%, 143 in both
  • Q3 2023: 22%, 146 in both
  • Q4 2023: 20%, 146 in both
  • Q1 2024: 19%, 133 in both
  • Q2 2024: 19%, 142 in both
  • Q3 2024: 18%, 136 in both
  • Q4 2024: 25%, 145 in both
  • Q1 2025: 26%, 150 in both
  • Q2 2025: 30%, 161 in both
  • Q3 2025: 27%, 163 in both
  • Q4 2025: 29%, 163 in both
  • Q1 2026: 28%, 166 in both
  • Q2 2026: 28%, 170 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.

StockHolocene Advisors LPArrowstreet Capital LP
Amazon Com Inc(AMZN)7.5%Added4.3%Added
Microsoft Corp(MSFT)3.6%Added4.6%Added
Nvidia Corp(NVDA)2.7%Trimmed3.1%Added
Seagate Technology Hldngs PL(STX)1.0%Trimmed0.9%Added
Palantir Technologies Inc(PLTR)0.7%Trimmed1.1%Added
Alphabet Inc(GOOGL)0.7%Trimmed2.4%Trimmed
Intuitive Surgical Inc(ISRG)0.7%Trimmed0.7%Added
Kla-tencor Corp(KLAC)0.7%New0.6%Added
Astrazeneca PLC(AZN)1.0%Trimmed0.4%Added
Abbott Labs(ABT)0.5%Added0.4%Added
Danaher Corp Del(DHR)1.5%Trimmed0.4%Added
SanDisk Corp(SNDK)0.4%Trimmed2.2%Trimmed
Wells Fargo Co New(WFC)0.5%New0.4%Added
H1467j104(CB)0.3%Trimmed0.4%Added
Ge Vernova Inc(GEV)0.6%Trimmed0.3%Trimmed
Lam Research Corp(LRCX)0.3%Added2.4%Trimmed
Hilton Worldwide HLDGS Inc(HLT)0.9%Trimmed0.3%Trimmed
Equinix Inc(EQIX)0.3%Trimmed0.3%Added
Autozone Inc(AZO)0.5%Added0.3%Added
Valero Energy Corp New(VLO)0.3%New0.3%Trimmed

and 150 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)Holocene Advisors LP sold out; Arrowstreet Capital LP added
  • Nvidia Corp(NVDA)Holocene Advisors LP trimmed; Arrowstreet Capital LP added
  • Lam Research Corp(LRCX)Holocene Advisors LP added; Arrowstreet Capital LP trimmed
  • Alphabet Inc(GOOG)Holocene Advisors LP started; Arrowstreet Capital LP trimmed
  • Palantir Technologies Inc(PLTR)Holocene Advisors LP trimmed; Arrowstreet Capital LP added
  • Mastercard Incorporated(MA)Holocene Advisors LP trimmed; Arrowstreet Capital LP added
  • Seagate Technology Hldngs PL(STX)Holocene Advisors LP trimmed; Arrowstreet Capital LP added
  • Fortinet Inc(FTNT)Holocene Advisors LP trimmed; Arrowstreet Capital LP added
  • Intuitive Surgical Inc(ISRG)Holocene Advisors LP trimmed; Arrowstreet Capital LP added
  • Suncor Energy Inc New(SU)Holocene Advisors LP trimmed; Arrowstreet Capital LP added
  • Taiwan Semiconductor MFG LTD(TSM)Holocene Advisors LP trimmed; Arrowstreet Capital LP added
  • Lumentum HLDGS Inc(LITE)Holocene Advisors LP trimmed; Arrowstreet Capital LP added
Holocene Advisors LP: the recordArrowstreet Capital LP: the record

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