13F / manager view

How similar are
these two books?

PMCIOQuantLPGP
Compare complete normalized common-stock issuer overlap across Q1 and Q2, then inspect opposing actions in the bounded Q2 evidence window.
  • Q1 → Q2 2026
  • 16 managers
  • Common stock only
Pair selector

Choose two different managers. Each pair has a permanent URL. Cohort badges stay visible so unlike books are not read as equivalent conviction.

FundamentalBerkshire Hathaway
SEC ↗Up to 100 Q2 common issuers plus 0 featured issuers. This is not the entire book.
Systematic / market-makingCitadel
SEC ↗Up to 100 Q2 common issuers plus 45 featured issuers. This is not the entire book.
Berkshire Hathaway26issuers in coverage
Citadel145issuers in coverage
01 / portfolio similarityfull normalized common books · Q1 and Q2
Fundamental vs Systematic / market-making · shown, not ranked
Q2 shared issuers
26
of 4578 in the union
Q2 issuer overlap
0.6%
Jaccard · shared / union
Q2 weighted overlap
4.1%
sum of smaller normalized weights
Q1 → Q2 weighted change
+0.6 pp
Q1 3.5%
Q1 → Q2 issuer change
-0.0 pp
Q1 0.6%

Similarity describes disclosed common-stock issuer overlap. It does not measure live exposure, intent, conviction or fund returns.

Largest shared Q2 issuer weights
Shared issuerBerkshire Hathaway weightCitadel weightOverlap contribution
ALPHABET INCCUSIP prefix 02079K12.6%1.3%1.3%
APPLE INCCUSIP prefix 03783322.0%1.2%1.2%
COCA COLA COCUSIP prefix 19121610.9%0.4%0.4%
CHEVRON CORPORATIONCUSIP prefix 1667644.7%0.3%0.3%
CAPITAL ONE FINL CORPCUSIP prefix 14040H0.2%0.2%0.2%
02 / bounded action windowcurrent common issuers within coverage
Shared current issuers within coverage
6
Left-only current issuers within coverage
20
Right-only current issuers within coverage
137
Opposing actions
1
03 / opposing actionssame issuer · opposite direction
Issuer values by manager
IssuerBerkshire HathawayCitadel
CAPITAL ONE FINL CORPCUSIP prefix 14040Hdecreased3,000,000 shares · $601,860,000increased2,059,363 shares · $413,149,405
04 / side-by-side coveragetop 50 displayed
Issuer values by manager
IssuerBerkshire HathawayCitadel
APPLE INCCUSIP prefix 037833unchanged227,917,808 shares · $65,950,296,923increased7,296,076 shares · $2,111,192,551
AMERICAN EXPRESS COCUSIP prefix 025816unchanged151,610,700 shares · $51,282,319,275Not in coverage
ALPHABET INCCUSIP prefix 02079Kincreased105,979,600 shares · $37,764,088,383increased10,736,118 shares · $2,229,282,080
COCA COLA COCUSIP prefix 191216unchanged400,000,000 shares · $32,508,000,000increased7,853,486 shares · $638,252,807
BANK OF AMER CORPCUSIP prefix 060505decreased483,394,015 shares · $27,543,790,975Not in coverage
CHEVRON CORPORATIONCUSIP prefix 166764unchanged84,375,856 shares · $13,986,141,890increased3,496,126 shares · $579,517,846
ISHARES TRCUSIP prefix 464287Not in coveragemixed22,078,893 shares · $13,652,173,298
OCCIDENTAL PETE CORPCUSIP prefix 674599unchanged264,941,431 shares · $12,868,205,304Not in coverage
CHUBB LIMITEDCUSIP prefix H1467Junchanged34,249,183 shares · $11,670,066,615Not in coverage
MOODYS CORPCUSIP prefix 615369unchanged24,669,778 shares · $11,173,435,852Not in coverage
KRAFT HEINZ COCUSIP prefix 500754unchanged325,634,818 shares · $7,691,494,401Not in coverage
DAVITA INCCUSIP prefix 23918Kdecreased28,880,209 shares · $6,425,268,898Not in coverage
DELTA AIR LINES INCCUSIP prefix 247361increased57,320,000 shares · $5,368,591,200increased326,727 shares · $30,601,251
SIRIUSXM HOLDINGS INCCUSIP prefix 829933unchanged124,807,117 shares · $3,686,802,237Not in coverage
AMAZON COM INCCUSIP prefix 023135Not in coverageincreased10,882,003 shares · $2,593,616,595
NVIDIA CORPORATIONCUSIP prefix 67066GNot in coveragedecreased11,815,467 shares · $2,364,156,792
VERISIGN INCCUSIP prefix 92343Eunchanged8,989,880 shares · $2,261,494,212Not in coverage
KROGER COCUSIP prefix 501044decreased39,000,000 shares · $2,165,670,000Not in coverage
LIBERTY LIVE HOLDINGS INCCUSIP prefix 530909unchanged15,573,731 shares · $1,623,367,688Not in coverage
MICROSOFT CORPCUSIP prefix 594918Not in coverageincreased3,770,405 shares · $1,406,436,474
ALLY FINL INCCUSIP prefix 02005Ndecreased27,000,000 shares · $1,240,650,000Not in coverage
LENNAR CORPCUSIP prefix 526057increased13,409,858 shares · $1,212,927,402Not in coverage
ELECTRONIC ARTS INCCUSIP prefix 285512Not in coverageincreased5,906,884 shares · $1,211,147,495
WARNER BROS DISCOVERY INCCUSIP prefix 934423Not in coverageincreased44,587,810 shares · $1,188,711,014
ELI LILLY & COCUSIP prefix 532457Not in coverageincreased945,456 shares · $1,134,008,290
NEW YORK TIMES CO MTN BECUSIP prefix 650111increased15,700,000 shares · $1,098,686,000Not in coverage
BROADCOM INCCUSIP prefix 11135FNot in coveragedecreased2,901,715 shares · $1,096,122,842
BLACKROCK INCCUSIP prefix 09290DNot in coverageincreased1,097,186 shares · $1,055,010,170
CAPITAL ONE FINL CORPCUSIP prefix 14040Hdecreased3,000,000 shares · $601,860,000increased2,059,363 shares · $413,149,405
ADVANCED MICRO DEVICES INCCUSIP prefix 007903Not in coverageincreased1,599,430 shares · $929,124,881
SPACE EXPLORATION TECHN CORPCUSIP prefix 84615QNot in coveragenew5,129,884 shares · $876,491,980
ABBVIE INCCUSIP prefix 00287YNot in coverageincreased3,169,783 shares · $797,644,194
APPLIED MATLS INCCUSIP prefix 038222Not in coveragedecreased1,080,951 shares · $781,527,573
ABBOTT LABORATORIESCUSIP prefix 002824Not in coverageincreased8,597,227 shares · $780,112,378
KLA CORPCUSIP prefix 482480Not in coverageincreased2,541,076 shares · $766,668,040
HOWMET AEROSPACE INCCUSIP prefix 443201Not in coverageincreased2,819,959 shares · $758,174,177
MASTERCARD INCORPORATEDCUSIP prefix 57636QNot in coverageincreased1,467,770 shares · $753,846,672
SEAGATE TECHNOLOGY HLDNGS PLCUSIP prefix G7997RNot in coverageincreased755,495 shares · $729,052,675
JPMORGAN CHASE & COCUSIP prefix 46625HNot in coveragedecreased2,214,465 shares · $724,860,828
ORACLE CORPCUSIP prefix 68389XNot in coverageincreased4,756,029 shares · $696,996,050
MICRON TECHNOLOGY INCCUSIP prefix 595112Not in coveragedecreased600,523 shares · $693,177,694
OREILLY AUTOMOTIVE INCCUSIP prefix 67103HNot in coverageincreased7,019,578 shares · $646,432,938
NETFLIX INC.CUSIP prefix 64110LNot in coverageincreased8,842,099 shares · $631,325,868
META PLATFORMS INCCUSIP prefix 30303MNot in coveragedecreased1,120,322 shares · $631,066,179
WALMART INCCUSIP prefix 931142Not in coverageincreased5,509,526 shares · $624,008,915
LAM RESEARCH CORPCUSIP prefix 512807Not in coverageincreased1,420,975 shares · $615,751,097
TEXAS INSTRS INCCUSIP prefix 882508Not in coverageincreased2,055,598 shares · $612,712,096
UNITED AIRLS HLDGS INCCUSIP prefix 910047Not in coverageincreased4,331,239 shares · $589,005,192
INTEL CORPCUSIP prefix 458140Not in coveragedecreased4,218,311 shares · $589,002,765
BERKSHIRE HATHAWAY INC DELCUSIP prefix 084670Not in coveragemixed1,085,781 shares · $572,499,590
Coverage / method

Similarity metrics use the complete normalized common-stock issuer book for each manager in Q1 and Q2. The action tables provide a separate bounded evidence window. Each manager contributes up to 100 current Q2 common issuers by reported value. The window also includes featured issuers that the manager holds or changed. Both views exclude CALL and PUT rows.

05 / more comparisonssame-manager pair pages · permanent canonical URLs

Berkshire Hathaway vs

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