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← Fidelity (FMR LLC), its record

Fidelity (FMR LLC) and AllianceBernstein LP: where the books meet

At Q2 2026, at least 48% of the two 13F books was the same, across 262 stocks both listed, against 44% 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%52%Q2 2013: 44%, 262 in bothQ3 2013: 44%, 271 in bothQ4 2013: 45%, 268 in bothQ1 2014: 44%, 275 in both14Q2 2014: 44%, 268 in bothQ3 2014: 44%, 266 in bothQ4 2014: 45%, 263 in bothQ1 2015: 45%, 256 in both15Q2 2015: 45%, 253 in bothQ3 2015: 45%, 263 in bothQ4 2015: 45%, 264 in bothQ1 2016: 45%, 259 in both16Q2 2016: 43%, 265 in bothQ3 2016: 43%, 262 in bothQ4 2016: 43%, 261 in bothQ1 2017: 42%, 256 in both17Q2 2017: 42%, 256 in bothQ3 2017: 43%, 254 in bothQ4 2017: 43%, 244 in bothQ1 2018: 43%, 253 in both18Q2 2018: 44%, 258 in bothQ3 2018: 45%, 258 in bothQ4 2018: 45%, 265 in bothQ1 2019: 44%, 253 in both19Q2 2019: 45%, 261 in bothQ3 2019: 45%, 260 in bothQ4 2019: 46%, 256 in bothQ1 2020: 48%, 257 in both20Q2 2020: 46%, 253 in bothQ3 2020: 46%, 246 in bothQ4 2020: 44%, 238 in bothQ1 2021: 44%, 236 in both21Q2 2021: 44%, 234 in bothQ3 2021: 44%, 234 in bothQ4 2021: 44%, 234 in bothQ1 2022: 44%, 232 in both22Q2 2022: 44%, 240 in bothQ3 2022: 43%, 242 in bothQ4 2022: 42%, 244 in bothQ1 2023: 43%, 242 in both23Q2 2023: 45%, 250 in bothQ3 2023: 46%, 251 in bothQ4 2023: 47%, 251 in bothQ1 2024: 49%, 260 in both24Q2 2024: 50%, 268 in bothQ3 2024: 50%, 259 in bothQ4 2024: 50%, 258 in bothQ1 2025: 50%, 261 in both25Q2 2025: 51%, 260 in bothQ3 2025: 52%, 266 in bothQ4 2025: 52%, 265 in bothQ1 2026: 51%, 263 in both26Q2 2026: 48%, 262 in both
  • Q2 2013: 44%, 262 in both
  • Q3 2013: 44%, 271 in both
  • Q4 2013: 45%, 268 in both
  • Q1 2014: 44%, 275 in both
  • Q2 2014: 44%, 268 in both
  • Q3 2014: 44%, 266 in both
  • Q4 2014: 45%, 263 in both
  • Q1 2015: 45%, 256 in both
  • Q2 2015: 45%, 253 in both
  • Q3 2015: 45%, 263 in both
  • Q4 2015: 45%, 264 in both
  • Q1 2016: 45%, 259 in both
  • Q2 2016: 43%, 265 in both
  • Q3 2016: 43%, 262 in both
  • Q4 2016: 43%, 261 in both
  • Q1 2017: 42%, 256 in both
  • Q2 2017: 42%, 256 in both
  • Q3 2017: 43%, 254 in both
  • Q4 2017: 43%, 244 in both
  • Q1 2018: 43%, 253 in both
  • Q2 2018: 44%, 258 in both
  • Q3 2018: 45%, 258 in both
  • Q4 2018: 45%, 265 in both
  • Q1 2019: 44%, 253 in both
  • Q2 2019: 45%, 261 in both
  • Q3 2019: 45%, 260 in both
  • Q4 2019: 46%, 256 in both
  • Q1 2020: 48%, 257 in both
  • Q2 2020: 46%, 253 in both
  • Q3 2020: 46%, 246 in both
  • Q4 2020: 44%, 238 in both
  • Q1 2021: 44%, 236 in both
  • Q2 2021: 44%, 234 in both
  • Q3 2021: 44%, 234 in both
  • Q4 2021: 44%, 234 in both
  • Q1 2022: 44%, 232 in both
  • Q2 2022: 44%, 240 in both
  • Q3 2022: 43%, 242 in both
  • Q4 2022: 42%, 244 in both
  • Q1 2023: 43%, 242 in both
  • Q2 2023: 45%, 250 in both
  • Q3 2023: 46%, 251 in both
  • Q4 2023: 47%, 251 in both
  • Q1 2024: 49%, 260 in both
  • Q2 2024: 50%, 268 in both
  • Q3 2024: 50%, 259 in both
  • Q4 2024: 50%, 258 in both
  • Q1 2025: 50%, 261 in both
  • Q2 2025: 51%, 260 in both
  • Q3 2025: 52%, 266 in both
  • Q4 2025: 52%, 265 in both
  • Q1 2026: 51%, 263 in both
  • Q2 2026: 48%, 262 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.

StockFidelity (FMR LLC)AllianceBernstein LP
Nvidia Corp(NVDA)8.9%Added5.6%Trimmed
Apple Inc(AAPL)4.1%Added3.6%Added
Microsoft Corp(MSFT)3.0%Trimmed3.2%Trimmed
Amazon Com Inc(AMZN)3.8%Added2.6%Trimmed
Broadcom Inc(AVGO)2.4%Added2.4%Trimmed
Facebook Inc(META)2.3%Trimmed2.3%Trimmed
Alphabet Inc(GOOG)1.9%Added3.5%Trimmed
Lilly Eli & Co(LLY)1.5%Added1.3%Trimmed
Alphabet Inc(GOOGL)3.9%Added1.1%Added
Taiwan Semiconductor MFG LTD(TSM)1.2%Trimmed0.8%Trimmed
Visa Inc(V)0.6%Trimmed1.8%Trimmed
Exxon Mobil Corp(XOM)0.8%Trimmed0.6%Added
Kla-tencor Corp(KLAC)0.6%Added3.6%Added
General Electric Co(GE)0.8%Trimmed0.5%Added
Unitedhealth Group Inc(UNH)0.5%Added0.7%Added
Bank of America Corporation(BAC)0.5%Trimmed0.4%Added
Netflix Inc(NFLX)0.4%Trimmed1.1%Trimmed
Tesla MTRS Inc(TSLA)0.7%Added0.4%Added
JPMorgan Chase & Co(JPM)0.4%Trimmed0.5%Added
Micron Technology Inc(MU)1.3%Trimmed0.4%Added

and 242 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.

  • Nvidia Corp(NVDA)Fidelity (FMR LLC) added; AllianceBernstein LP trimmed
  • Amazon Com Inc(AMZN)Fidelity (FMR LLC) added; AllianceBernstein LP trimmed
  • Broadcom Inc(AVGO)Fidelity (FMR LLC) added; AllianceBernstein LP trimmed
  • Alphabet Inc(GOOG)Fidelity (FMR LLC) added; AllianceBernstein LP trimmed
  • Lilly Eli & Co(LLY)Fidelity (FMR LLC) added; AllianceBernstein LP trimmed
  • Micron Technology Inc(MU)Fidelity (FMR LLC) trimmed; AllianceBernstein LP added
  • Exxon Mobil Corp(XOM)Fidelity (FMR LLC) trimmed; AllianceBernstein LP added
  • General Electric Co(GE)Fidelity (FMR LLC) trimmed; AllianceBernstein LP added
  • Marvell Technology Inc(MRVL)Fidelity (FMR LLC) trimmed; AllianceBernstein LP added
  • Lam Research Corp(LRCX)Fidelity (FMR LLC) added; AllianceBernstein LP trimmed
  • Wells Fargo & Co New(WFC)Fidelity (FMR LLC) trimmed; AllianceBernstein LP added
  • Amphenol Corp New(APH)Fidelity (FMR LLC) trimmed; AllianceBernstein LP added
Fidelity (FMR LLC): the recordAllianceBernstein LP: the record

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