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Clifford Sosin

CAS Investment Partners

$1.88B
disclosed 13F portfolio · 6 positions
top-5 concentration100%
Q2 2026 · filed Aug 14, 2026

Clifford Sosin (CAS Investment Partners) discloses a $1.88B portfolio across 6 US-listed positions in the latest 13F filing (2026Q2, filed Aug 14, 2026). The largest holding is CVNA at 78.9% of the book. The biggest move of the quarter: fully exited COF (was 6.0% of the book). Mechanically cloning this 13F returned 18.9%/yr over the past 8.4 years, versus 14.4%/yr for the S&P 500 across that identical 8.4-year window.

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Holdings (6) · click any column to sort

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  • port78.9%
    val$1.48B
    Carvana CO
    this Q hold·34q
  • port14.5%
    val$273M
    Hilton Grand Vacations Inc
    this Q hold·20q
  • port4.1%
    val$77M
    Meta Platforms Inc-class A
    this Q New·1q
  • port2.2%
    val$41M
    Marriott Vacations World
    this Q New·1q
  • port0.3%
    val$6M
    Latham Group Inc
    this Q hold·4q
  • port0.1%
    val$2M
    Cardlytics Inc
    this Q hold·29q
2026Q2 moves, by size (3)(expand ↓)
  • EXITCOF
    6.0%
    Capital One Financial Corp
    Δ -100%·$0
  • NEWMETA
    4.1%
    Meta Platforms Inc-class A
    Δ +100%·$77M
  • NEWVAC
    2.2%
    Marriott Vacations World
    Δ +100%·$41M

About Clifford Sosin

Clifford Sosin runs CAS Investment Partners as an intensely concentrated long-only equity fund — five positions, with roughly 82% of the disclosed portfolio sitting in Carvana (CVNA) as of the latest filing. That positioning is not a recent development; Sosin has been a prominent Carvana bull through the stock's full cycle, including its near-bankruptcy episode in 2022, and has written publicly about his long-term thesis on the company's unit economics and used-car marketplace durability. His style sits in the tradition of high-conviction fundamental value investing, closer to a private-equity ownership mentality than a diversified long book. With only five reported equity positions and a top-five concentration of 100%, the 13F is essentially the entire picture of his long exposure — there is little hidden in a long tail. Readers should note, however, that any short positions, options overlays, or derivatives would not appear here, and that a single-stock weight of this magnitude makes the portfolio's reported performance inseparable from CVNA's own.

2026Q2 brief

Clifford Sosin's CAS Investment Partners runs one of the most concentrated books among all super-investors, and Q2 2026 only reinforced that identity: CVNA now sits at a staggering 78.9% of a $1.88B portfolio, effectively making CAS a single-stock fund. The quarter's activity was modest but directional — Sosin exited COF (previously 6.0%) and rotated into two new positions: META (4.1%) and VAC (Marriott Vacations, 2.2%). The META initiation is notable given that it's a consensus super-investor holding (also held by Tiger Global, Giverny, and FPA this quarter), but Sosin's version of consensus is always filtered through deep value logic. HGV (Hilton Grand Vacations, 14.5%) and VAC together suggest a deliberate thesis around the timeshare/vacation-ownership sector's capital-light, recurring-revenue model. With CVNA continuing its run, the portfolio's fate is almost entirely tied to Carvana's execution. Watch next filing for any trimming of CVNA — even a 5-10% reduction would be the most significant signal Sosin has sent in years.

AI-generated. Not investment advice.

Filing history

Clifford Sosin's disclosed 13F portfolio value and position count by quarter — the trajectory across every SEC filing.

Disclosed portfolio value · Q3 2023Q2 2026now $1.88B · peak $2.34B (Q4 2025)
Q3 2023Q2 2024Q2 2025Q2 2026
QuarterPositionsPortfolio value
Q2 2026 — what changed →6
$1.88B
Q1 2026 holdings5
$1.75B
Q4 2025 holdings5
$2.34B
Q3 2025 — what changed →5
$2.24B
Q2 2025 holdings4
$2.05B
Q1 2025 holdings4
$1.54B
Q4 2024 holdings4
$1.72B
Q3 2024 holdings5
$1.51B
Q2 2024 holdings5
$1.28B
Q1 2024 holdings5
$1.12B
Q4 2023 holdings5
$827M
Q3 2023 holdings5
$780M

Values as disclosed at each quarter end. Older filings on EDGAR.

Multibaggers Clifford Sosin held

Stocks up 5x or more since Clifford Sosin first held them at conviction size — the holding record behind the returns. Longest unbroken run and largest book weight are shown for each.

  • URI19.0xUNITED RENTALS INC1q straight · peak 3.06%
  • CVNA13.4xCARVANA CO33q straight · peak 83.25% · still holds

Price multiple since the first quarter we observed a conviction holding (2014Q1 at the earliest), not Clifford Sosin's realized return — entry price and trades between filings aren't disclosed. Peak weight is share of disclosed US 13F book. All 129 multibaggers the cohort held →

Frequently asked questions

What stocks does Clifford Sosin own?
As of 2026Q2, Clifford Sosin's 13F discloses 6 positions worth $1.88B. The top five holdings: CVNA (78.9%), HGV (14.5%), META (4.1%), VAC (2.2%), SWIM (0.3%). 13F filings cover long US-listed equities only — cash, bonds, shorts, and non-US positions are not disclosed.
What did Clifford Sosin buy this quarter?
In 2026Q2, the filing shows 2 new positions and 0 additions to existing holdings. The largest positions touched by buying: META, VAC.
How big is Clifford Sosin's portfolio?
$1.88B across 6 positions per the latest 13F (filed Aug 14, 2026). The top five holdings account for 100% of the disclosed book.

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Long US equity 13F-HR filings only — no shorts, no derivatives. SEC filings at EDGAR (CIK 0001697591). Not investment advice.