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← AllianceBernstein LP, its record

AllianceBernstein LP and Janus Henderson Group Ltd: where the books meet

At Q2 2026, at least 45% of the two 13F books was the same, across 218 stocks both listed, against 38% 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%26%53%Q2 2013: 38%, 273 in bothQ3 2013: 39%, 282 in bothQ4 2013: 38%, 288 in bothQ1 2014: 39%, 285 in both14Q2 2014: 38%, 283 in bothQ3 2014: 38%, 288 in bothQ4 2014: 37%, 279 in bothQ1 2015: 36%, 285 in both15Q2 2015: 36%, 281 in bothQ3 2015: 36%, 277 in bothQ4 2015: 37%, 279 in bothQ1 2016: 38%, 282 in both16Q2 2016: 36%, 297 in bothQ3 2016: 37%, 292 in bothQ4 2016: 37%, 296 in bothQ1 2017: 38%, 285 in both17Q2 2017: 40%, 238 in bothQ3 2017: 41%, 247 in bothQ4 2017: 41%, 240 in bothQ1 2018: 40%, 241 in both18Q2 2018: 40%, 242 in bothQ3 2018: 40%, 231 in bothQ4 2018: 40%, 242 in bothQ1 2019: 40%, 247 in both19Q2 2019: 40%, 249 in bothQ3 2019: 41%, 254 in bothQ4 2019: 40%, 253 in bothQ1 2020: 44%, 260 in both20Q2 2020: 44%, 241 in bothQ3 2020: 44%, 241 in bothQ4 2020: 42%, 222 in bothQ1 2021: 41%, 215 in both21Q2 2021: 42%, 211 in bothQ3 2021: 42%, 222 in bothQ4 2021: 42%, 213 in bothQ1 2022: 44%, 226 in both22Q2 2022: 42%, 214 in bothQ3 2022: 41%, 212 in bothQ4 2022: 40%, 213 in bothQ1 2023: 42%, 226 in both23Q2 2023: 43%, 219 in bothQ3 2023: 44%, 217 in bothQ4 2023: 46%, 211 in bothQ1 2024: 47%, 216 in both24Q2 2024: 49%, 218 in bothQ3 2024: 49%, 220 in bothQ4 2024: 50%, 223 in bothQ1 2025: 49%, 231 in both25Q2 2025: 51%, 229 in bothQ3 2025: 52%, 231 in bothQ4 2025: 52%, 225 in bothQ1 2026: 50%, 223 in both26Q2 2026: 45%, 218 in both
  • Q2 2013: 38%, 273 in both
  • Q3 2013: 39%, 282 in both
  • Q4 2013: 38%, 288 in both
  • Q1 2014: 39%, 285 in both
  • Q2 2014: 38%, 283 in both
  • Q3 2014: 38%, 288 in both
  • Q4 2014: 37%, 279 in both
  • Q1 2015: 36%, 285 in both
  • Q2 2015: 36%, 281 in both
  • Q3 2015: 36%, 277 in both
  • Q4 2015: 37%, 279 in both
  • Q1 2016: 38%, 282 in both
  • Q2 2016: 36%, 297 in both
  • Q3 2016: 37%, 292 in both
  • Q4 2016: 37%, 296 in both
  • Q1 2017: 38%, 285 in both
  • Q2 2017: 40%, 238 in both
  • Q3 2017: 41%, 247 in both
  • Q4 2017: 41%, 240 in both
  • Q1 2018: 40%, 241 in both
  • Q2 2018: 40%, 242 in both
  • Q3 2018: 40%, 231 in both
  • Q4 2018: 40%, 242 in both
  • Q1 2019: 40%, 247 in both
  • Q2 2019: 40%, 249 in both
  • Q3 2019: 41%, 254 in both
  • Q4 2019: 40%, 253 in both
  • Q1 2020: 44%, 260 in both
  • Q2 2020: 44%, 241 in both
  • Q3 2020: 44%, 241 in both
  • Q4 2020: 42%, 222 in both
  • Q1 2021: 41%, 215 in both
  • Q2 2021: 42%, 211 in both
  • Q3 2021: 42%, 222 in both
  • Q4 2021: 42%, 213 in both
  • Q1 2022: 44%, 226 in both
  • Q2 2022: 42%, 214 in both
  • Q3 2022: 41%, 212 in both
  • Q4 2022: 40%, 213 in both
  • Q1 2023: 42%, 226 in both
  • Q2 2023: 43%, 219 in both
  • Q3 2023: 44%, 217 in both
  • Q4 2023: 46%, 211 in both
  • Q1 2024: 47%, 216 in both
  • Q2 2024: 49%, 218 in both
  • Q3 2024: 49%, 220 in both
  • Q4 2024: 50%, 223 in both
  • Q1 2025: 49%, 231 in both
  • Q2 2025: 51%, 229 in both
  • Q3 2025: 52%, 231 in both
  • Q4 2025: 52%, 225 in both
  • Q1 2026: 50%, 223 in both
  • Q2 2026: 45%, 218 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.

StockAllianceBernstein LPJanus Henderson Group Ltd
Nvidia Corp(NVDA)5.6%Trimmed6.6%Trimmed
Alphabet Inc(GOOG)3.5%Trimmed4.3%Added
Microsoft Corp(MSFT)3.2%Trimmed2.8%Trimmed
Amazon.com Inc(AMZN)2.6%Trimmed2.4%Trimmed
Broadcom Inc(AVGO)2.4%Trimmed3.0%Added
Apple Inc(AAPL)3.6%Added2.2%Trimmed
Kla-tencor Corp(KLAC)3.6%Added1.4%Added
Eli Lilly & Co(LLY)1.3%Trimmed1.9%Trimmed
Facebook Inc(META)2.3%Trimmed1.2%Trimmed
Taiwan Semiconductor Manufacturing Co LT(TSM)0.8%Trimmed1.6%Added
Unitedhealth Group Inc(UNH)0.7%Added0.8%Added
Applied Materials Inc(AMAT)0.6%Trimmed0.6%Added
Visa Inc(V)1.8%Trimmed0.6%Trimmed
Johnson & Johnson(JNJ)0.6%Trimmed0.8%Trimmed
Eaton Corp PLC(ETN)0.5%Added0.8%Trimmed
General Electric Co(GE)0.5%Added0.5%Added
JPMorgan Chase & Co(JPM)0.5%Added0.5%Trimmed
Alphabet Inc(GOOGL)1.1%Added0.4%Trimmed
Progressive Corp/the(PGR)0.6%Trimmed0.4%Trimmed
Micron Technology Inc(MU)0.4%Added1.4%Trimmed

and 198 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)AllianceBernstein LP added; Janus Henderson Group Ltd trimmed
  • Alphabet Inc(GOOG)AllianceBernstein LP trimmed; Janus Henderson Group Ltd added
  • Broadcom Inc(AVGO)AllianceBernstein LP trimmed; Janus Henderson Group Ltd added
  • Lam Research Corp(LRCX)AllianceBernstein LP trimmed; Janus Henderson Group Ltd added
  • Taiwan Semiconductor Manufacturing Co LT(TSM)AllianceBernstein LP trimmed; Janus Henderson Group Ltd added
  • iShares Core S&P 500 ETF(IVV)AllianceBernstein LP added; Janus Henderson Group Ltd trimmed
  • Micron Technology Inc(MU)AllianceBernstein LP added; Janus Henderson Group Ltd trimmed
  • Alphabet Inc(GOOGL)AllianceBernstein LP added; Janus Henderson Group Ltd trimmed
  • Costco Wholesale Corp(COST)AllianceBernstein LP trimmed; Janus Henderson Group Ltd added
  • Ge Vernova Inc(GEV)AllianceBernstein LP trimmed; Janus Henderson Group Ltd added
  • Home Depot Inc(HD)AllianceBernstein LP added; Janus Henderson Group Ltd trimmed
  • Eaton Corp PLC(ETN)AllianceBernstein LP added; Janus Henderson Group Ltd trimmed
AllianceBernstein LP: the recordJanus Henderson Group Ltd: the record

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