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Markel Group Inc and AllianceBernstein LP: where the books meet

At Q2 2026, at least 25% of the two 13F books was the same, across 73 stocks both listed, against 17% 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%14%28%Q2 2013: 17%, 58 in bothQ3 2013: 16%, 55 in bothQ4 2013: 17%, 58 in bothQ1 2014: 16%, 57 in both14Q2 2014: 16%, 55 in bothQ3 2014: 17%, 56 in bothQ4 2014: 16%, 57 in bothQ1 2015: 16%, 57 in both15Q2 2015: 16%, 61 in bothQ3 2015: 16%, 64 in bothQ4 2015: 16%, 74 in bothQ1 2016: 17%, 73 in both16Q2 2016: 18%, 74 in bothQ3 2016: 19%, 75 in bothQ4 2016: 19%, 80 in bothQ1 2017: 19%, 77 in both17Q2 2017: 19%, 79 in bothQ3 2017: 19%, 79 in bothQ4 2017: 19%, 79 in bothQ1 2018: 21%, 77 in both18Q2 2018: 22%, 81 in bothQ3 2018: 23%, 79 in bothQ4 2018: 23%, 78 in bothQ1 2019: 23%, 78 in both19Q2 2019: 24%, 77 in bothQ3 2019: 24%, 77 in bothQ4 2019: 25%, 77 in bothQ1 2020: 25%, 72 in both20Q2 2020: 25%, 62 in bothQ3 2020: 26%, 60 in bothQ4 2020: 25%, 64 in bothQ1 2021: 25%, 68 in both21Q2 2021: 26%, 69 in bothQ3 2021: 25%, 72 in bothQ4 2021: 25%, 66 in bothQ1 2022: 26%, 70 in both22Q2 2022: 25%, 71 in bothQ3 2022: 25%, 69 in bothQ4 2022: 24%, 69 in bothQ1 2023: 25%, 69 in both23Q2 2023: 24%, 67 in bothQ3 2023: 25%, 72 in bothQ4 2023: 25%, 74 in bothQ1 2024: 25%, 76 in both24Q2 2024: 26%, 79 in bothQ3 2024: 26%, 77 in bothQ4 2024: 27%, 79 in bothQ1 2025: 27%, 79 in both25Q2 2025: 27%, 81 in bothQ3 2025: 28%, 78 in bothQ4 2025: 28%, 74 in bothQ1 2026: 27%, 77 in both26Q2 2026: 25%, 73 in both
  • Q2 2013: 17%, 58 in both
  • Q3 2013: 16%, 55 in both
  • Q4 2013: 17%, 58 in both
  • Q1 2014: 16%, 57 in both
  • Q2 2014: 16%, 55 in both
  • Q3 2014: 17%, 56 in both
  • Q4 2014: 16%, 57 in both
  • Q1 2015: 16%, 57 in both
  • Q2 2015: 16%, 61 in both
  • Q3 2015: 16%, 64 in both
  • Q4 2015: 16%, 74 in both
  • Q1 2016: 17%, 73 in both
  • Q2 2016: 18%, 74 in both
  • Q3 2016: 19%, 75 in both
  • Q4 2016: 19%, 80 in both
  • Q1 2017: 19%, 77 in both
  • Q2 2017: 19%, 79 in both
  • Q3 2017: 19%, 79 in both
  • Q4 2017: 19%, 79 in both
  • Q1 2018: 21%, 77 in both
  • Q2 2018: 22%, 81 in both
  • Q3 2018: 23%, 79 in both
  • Q4 2018: 23%, 78 in both
  • Q1 2019: 23%, 78 in both
  • Q2 2019: 24%, 77 in both
  • Q3 2019: 24%, 77 in both
  • Q4 2019: 25%, 77 in both
  • Q1 2020: 25%, 72 in both
  • Q2 2020: 25%, 62 in both
  • Q3 2020: 26%, 60 in both
  • Q4 2020: 25%, 64 in both
  • Q1 2021: 25%, 68 in both
  • Q2 2021: 26%, 69 in both
  • Q3 2021: 25%, 72 in both
  • Q4 2021: 25%, 66 in both
  • Q1 2022: 26%, 70 in both
  • Q2 2022: 25%, 71 in both
  • Q3 2022: 25%, 69 in both
  • Q4 2022: 24%, 69 in both
  • Q1 2023: 25%, 69 in both
  • Q2 2023: 24%, 67 in both
  • Q3 2023: 25%, 72 in both
  • Q4 2023: 25%, 74 in both
  • Q1 2024: 25%, 76 in both
  • Q2 2024: 26%, 79 in both
  • Q3 2024: 26%, 77 in both
  • Q4 2024: 27%, 79 in both
  • Q1 2025: 27%, 79 in both
  • Q2 2025: 27%, 81 in both
  • Q3 2025: 28%, 78 in both
  • Q4 2025: 28%, 74 in both
  • Q1 2026: 27%, 77 in both
  • Q2 2026: 25%, 73 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.

StockMarkel Group IncAllianceBernstein LP
Alphabet Inc(GOOG)7.4%Held3.5%Trimmed
Apple Inc(AAPL)2.7%Held3.6%Added
Amazon.com(AMZN)3.7%Held2.6%Trimmed
Visa(V)2.6%Added1.8%Trimmed
Microsoft Corp(MSFT)1.5%Held3.2%Trimmed
Alphabet Inc Class A(GOOGL)1.6%Held1.1%Added
Facebook(META)1.0%Trimmed2.3%Trimmed
Home Depot(HD)2.5%Added0.7%Added
Progressive Corp(PGR)1.3%Held0.6%Trimmed
Berkshire Hathaway Class B(BRK-B)5.8%Held0.6%Trimmed
Texas Instruments Inc(TXN)1.6%Held0.6%Added
Johnson and Johnson(JNJ)1.2%Held0.6%Trimmed
JP Morgan(JPM)0.6%Held0.5%Added
Disney(DIS)1.5%Held0.4%Trimmed
Charles Schwab(SCHW)1.0%Added0.3%Trimmed
Raytheon Technologies Ord(RTX)0.3%Held0.6%Added
Mastercard, Inc(MA)0.8%Held0.3%Trimmed
Cisco(CSCO)0.3%Held0.3%Trimmed
Thermo Fisher Scient(TMO)0.3%Added0.3%Trimmed
Costco(COST)0.3%Held0.8%Trimmed

and 53 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.

  • Visa(V)Markel Group Inc added; AllianceBernstein LP trimmed
  • Netflix Inc(NFLX)Markel Group Inc started; AllianceBernstein LP trimmed
  • United Health Group Inc(UNH)Markel Group Inc sold out; AllianceBernstein LP added
  • Charles Schwab(SCHW)Markel Group Inc added; AllianceBernstein LP trimmed
  • Thermo Fisher Scient(TMO)Markel Group Inc added; AllianceBernstein LP trimmed
  • Analog Devices Inc(ADI)Markel Group Inc trimmed; AllianceBernstein LP added
  • Lowes(LOW)Markel Group Inc added; AllianceBernstein LP trimmed
  • Union Pacific(UNP)Markel Group Inc added; AllianceBernstein LP trimmed
  • CSX Corporation(CSX)Markel Group Inc added; AllianceBernstein LP trimmed
  • Hca Healthcare Inc(HCA)Markel Group Inc added; AllianceBernstein LP trimmed
  • Marriott International(MAR)Markel Group Inc added; AllianceBernstein LP trimmed
  • Otis Worldwide Corp(OTIS)Markel Group Inc added; AllianceBernstein LP trimmed
Markel Group Inc: the recordAllianceBernstein LP: the record

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