Check Capital Management portfolio

Type not verified

Portfolio as of Jun 30, 2026 (Q2 2026) · filed with the SEC on Aug 3, 2026 · data updated on Nov 5, 2026 · Q2 2026 13F (filing) ↗ · amendment (adds holdings) of Aug 5, 2026 ↗ · all its 13F filings ↗

A 13F shows the portfolio at quarter-end and is filed up to 45 days later: these are not real-time positions and they may have changed.

Check Capital Management reported a $3.5 bn portfolio of 50 companies (52 positions, counting each share class separately) to the SEC as of the end of Q2 2026. Its largest positions are BRK/B, Alphabet, BN.

Stock portfolio

$3.5 bn

Companies

52 positions (by CUSIP)Top 10: 90%

Turnover

Copying its 13F, 5 years

—

Not calculated: not counted as a concentrated manager

Sections with a free account

What changed this quarter

33 positions with a change (4 new, 21 added to, 6 trimmed, 2 sold); also, 1 entered through an IPO. 12 are listed here: those of 0.5 points of the portfolio or more (up to 12).

Berkshire Hathaway+16.7 ppof portfolioIncreased
34.0% → 33.2%
Alphabet+93%more sharesIncreased
12.2% → 13.5%
Brookfield+101%more sharesIncreased
10.9% → 10.7%
Markel Group+106%more sharesIncreased
9.1% → 8.8%
AerCap Holdings+98%more sharesIncreased
6.9% → 6.7%
First Citizens Bancshares+101%more sharesIncreased
5.1% → 5.3%
Sirius XM Holdings+99%more sharesIncreased
4.2% → 4.9%
Amazon.com+102%more sharesIncreased
2.6% → 2.8%
LKQ+97%more sharesIncreased
3.5% → 2.8%
Cimpress+100%more sharesIncreased
2.1% → 2.7%
Walt Disney+105%more sharesIncreased
2.6% → 2.5%
Hershey+113%more sharesIncreased
2.5% → 2.1%

The figure on the right: for positions added to or trimmed, the change in the number of shares (%); for new and sold ones, the points of the portfolio moved (pp). Below, the portfolio weight before → after. Traded weight: what it bought or sold, excluding price effects.

Top holdings

Berkshire HathawayBRK/B · BRK/A33.2%
Alphabet13.5%
BrookfieldBN10.7%
Markel GroupMKL8.8%
AerCap HoldingsAER6.7%
First Citizens BancsharesFCNCA5.3%
Sirius XM HoldingsSIRI4.9%
LKQLKQ2.8%
Amazon.comAMZN2.8%
Cimpress2.7%
Walt DisneyDIS2.5%
HersheyHSY2.1%
Jefferies Financial GroupJEF2.0%
WayfairW0.9%
AppleAAPL0.2%
Fairfax Financial HoldingsFRFHF0.2%
Biglari HoldingsBH/A0.1%
MicrosoftMSFT0.1%
CaterpillarCAT0.1%
AmgenAMGNunder 0.1%
Googleunder 0.1%
CorningGLWunder 0.1%
Goldman Sachs GroupGSunder 0.1%
GE Aerospaceunder 0.1%
GE VernovaGEVunder 0.1%
TrupanionTRUPunder 0.1%
TeslaTSLAunder 0.1%
Ishar Fture EXP Tech ETF-usd ETFXTunder 0.1%
State Str Spdr S&P 500 ETF TSPYunder 0.1%
Bank of AmericaBACunder 0.1%
RTXRTXunder 0.1%
NVIDIANVDAunder 0.1%
Brookfield Asset ManagementBAMunder 0.1%
UnitedHealth GroupUNHunder 0.1%
FastenalFASTunder 0.1%
Wells FargoWFCunder 0.1%
UBER TechnologiesUBERunder 0.1%
Schwab US Large-cap Growth ETFSCHGunder 0.1%
JPMorgan ChaseJPMunder 0.1%
BoeingBAunder 0.1%
FedExFDXunder 0.1%
Illinois Tool WorksITWunder 0.1%
Quest DiagnosticsDGXunder 0.1%
Citizens Financial GroupCFGunder 0.1%
Freeport-McMoRanFCXunder 0.1%
Hudbay MineralsHBMunder 0.1%
Lam ResearchLRCXunder 0.1%
Trekor MetalsTGBunder 0.1%
ChevronCVXunder 0.1%
Schwab US Small-cap ETFSCHAunder 0.1%

“Since”: first quarter of the current run, unbroken until today. In the details, prices are the quarter-end prices of the quarters in which it added shares, per the 13F. The manager may have bought at any price within each quarter; the SEC only publishes the value at quarter end.

Portfolio by sector

● Financials 60%
● No sector 16%
● Communication Services 7%
● Industrials 7%
● Consumer Discretionary 7%
● Consumer Staples 2%

How its portfolio changed (8 quarters)

Positions

Q2 2026: 52

530

Q3 2024Q2 2026

Top 10 weight

Q2 2026: 90%

92%87%

Q3 2024Q2 2026

Traded turnover

Q2 2026: 24.9%

24.9%0

Q3 2024Q2 2026

Traded turnover: the weight it bought plus the weight it sold in the quarter, divided by two, excluding price moves. The plain “turnover” in the header does include that effect. With a free account: the full history and sectors over time.

13F filings with amendments or confidential positions

13F Q2 2026 ↗filed Aug 3, 2026Amendment of Aug 5, 2026 (replaces the original) ↗Amendment of Aug 5, 2026 (adds holdings) ↗98 positions known later through an amendment, worth $7.5 bn: they could not be copied when the 13F was published.

Declared options (1)

Besides stocks, Check Capital Management declared 1 call (they gain if it rises) with a notional of $4.0 bn. The 13F reports the value of the underlying shares, not the premium paid, so these figures look large and are not added to the portfolio. Nor does it say whether the option is bought or written, or its strike or expiry: it may be a hedge.

CALLBerkshire HathawayBRK/B$4.0 bn

Stakes above 5% (13D/13G)

Companies where this filer reported holding 5% or more of the shares. It is the figure from its latest filing on each one; history since December 2024.

How we classify it

Type not verified: we have not assigned a type because we found no document that is enough to tell. Most 13F filers are in this situation: we only review in depth those that meet the portfolio criteria.

Not counted as a concentrated manager: more than 20% is options. Its portfolio is shown all the same, but it is left out of manager counts, the consensus and the ranking. How this is decided

Managers of a similar size

A 13F portfolio value between a third and three times this one, whatever the type of filer. It is not a comparison of what they hold.

Leon G CoopermanFamily office · $3.5 bn
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Spruce House Investment ManagementInvestment firm · $3.4 bn
Metropolis CapitalInvestment firm · $3.6 bn
Voyager Global ManagementInvestment firm · $3.6 bn
Hyperion Asset ManagementInvestment firm · $3.7 bn

What changed this quarter

Top holdings

Portfolio by sector

How its portfolio changed (8 quarters)

13F filings with amendments or confidential positions

Declared options (1)

Stakes above 5% (13D/13G)

Managers of a similar size

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