Ruane Cunniff LP
As of Q2 2026, Ruane Cunniff LP reported 54 long-equity positions worth $6.43B in aggregate.
Copy-investor backtest
- Latest quarter
- +7.41%
- 1-year
- +18.19%
- 3-year
- +55.96%
- 5-year
- +39.17%
- 3-year vs S&P 500
- -17.27%
- 5-year vs S&P 500
- -34.51%
- 5-year top 5
- +41.90%
Return from mechanically copying the disclosed 13F equity portfolio after each filing and rebalancing at the next. The vs S&P 500 figures subtract SPY over that manager's own rebalance dates, so both sides cover the same days; both are price return, excluding dividends. Method & limitations.
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Updated 2026-06-06 from SEC 13F data.
Live quotes available for 54 of 74 rows. Rows without a quote are marked unavailable.
| 1 | BRK/A | BERKSHIRE HATHAWAY INC DELCUSIP 084670108 | 9.22% | Add +4.0% | 3,829 | $1.05B | No quote | No quote |
| 2 | GOOG | ALPHABET INC | 6.96% | Add +87.3% | 828,631 | $794.75M | $959.11 | No quote |
| 3 | KMX | CARMAX INC | 6.39% | Reduce -5.2% | 9,625,581 | $729.72M | $75.81 | No quote |
| 4 | GOOGL | ALPHABET INC | 5.55% | Add +44.9% | 650,980 | $633.87M | $973.72 | No quote |
| 5 | MA | MASTERCARD INCORPORATED | 5.01% | Reduce -15.2% | 4,051,345 | $572.05M | $141.20 | No quote |
| 6 | TJX | TJX COS INC NEW | 4.94% | Reduce -16.8% | 7,647,548 | $563.85M | $73.73 | No quote |
| 7 | FWONK | LIBERTY MEDIA CORP DELAWARE | 4.91% | Reduce -0.3% | 14,729,438 | $561.05M | $38.09 | No quote |
| 8 | XRAY | DENTSPLY SIRONA INC | 4.66% | Add +0.5% | 8,890,655 | $531.75M | $59.81 | No quote |
| 9 | FCAU | FIAT CHRYSLER AUTOMOBILES N | 3.93% | Add +25.1% | 25,061,340 | $448.85M | No quote | No quote |
| 10 | AMZN | AMAZON COM INC | 3.40% | Add +0.5% | 403,919 | $388.31M | $961.35 | No quote |
| 11 | BRK/B | BERKSHIRE HATHAWAY INC DELCUSIP 084670702 | 3.35% | Reduce -5.4% | 2,087,391 | $382.66M | No quote | No quote |
| 12 | WFC | WELLS FARGO CO NEW | 3.22% | Add +35.9% | 6,673,316 | $368.03M | $55.15 | No quote |
| 13 | SCHW | SCHWAB CHARLES CORP NEW | 3.20% | Add +1.6% | 8,348,548 | $365.17M | $43.74 | No quote |
| 14 | MHK | MOHAWK INDS INC | 2.99% | Add +4.9% | 1,377,558 | $340.96M | $247.51 | No quote |
| 15 | JEC | JACOBS ENGR GROUP INC DEL | 2.91% | Add +9.4% | 5,692,656 | $331.71M | No quote | No quote |
| 16 | PCLN | PRICELINE GRP INC | 2.80% | Reduce -0.3% | 174,662 | $319.78M | No quote | No quote |
| 17 | V | VISA INC | 2.67% | Add +13.1% | 2,895,205 | $304.69M | $105.24 | No quote |
| 18 | CACC | CREDIT ACCEP CORP MICH | 2.63% | Reduce -0.6% | 1,073,427 | $300.74M | $280.17 | No quote |
| 19 | ORLY | O REILLY AUTOMOTIVE INC NEW | 2.51% | Reduce -16.8% | 1,330,204 | $286.49M | $215.37 | No quote |
| 20 | OMC | OMNICOM GROUP INC | 2.50% | Reduce -0.6% | 3,845,649 | $284.85M | $74.07 | No quote |
| 21 | WAT | WATERS CORP | 1.80% | Reduce -36.1% | 1,142,182 | $205.05M | $179.52 | No quote |
| 22 | PRI | PRIMERICA INC | 1.43% | - | 2,008,377 | $163.78M | $81.55 | No quote |
| 23 | JD | JD COM INC | 1.34% | Add +33.3% | 4,000,000 | $152.8M | $38.20 | No quote |
| 24 | IAC | IAC INTERACTIVECORP | 1.24% | - | 1,205,205 | $141.71M | $117.58 | No quote |
| 25 | COF | CAPITAL ONE FINL CORP | 1.19% | Add +0.1% | 1,601,000 | $135.54M | $84.66 | No quote |
| 26 | GS | GOLDMAN SACHS GROUP INC | 1.18% | Reduce -6.4% | 569,663 | $135.12M | $237.19 | No quote |
| 27 | WUBA | 58 COM INC | 0.90% | Reduce -39.3% | 1,622,755 | $102.46M | No quote | No quote |
| 28 | EME | EMCOR GROUP INC | 0.88% | Add +1.7% | 1,441,346 | $100M | $69.38 | No quote |
| 29 | BLDR | BUILDERS FIRSTSOURCE INC | 0.85% | - | 5,408,465 | $97.3M | $17.99 | No quote |
| 30 | IBKR | INTERACTIVE BROKERS GROUP IN | 0.68% | Add +13.6% | 1,713,298 | $77.17M | $45.04 | No quote |
| 31 | BIDU | BAIDU INC | 0.66% | Reduce -79.8% | 302,917 | $75.03M | $247.69 | No quote |
| 32 | BMCH | BMC STK HLDGS INC | 0.49% | New | 2,600,000 | $55.51M | No quote | No quote |
| 33 | META | FACEBOOK INC | 0.46% | - | 304,624 | $52.05M | $170.87 | No quote |
| 34 | TRUP | TRUPANION INC | 0.42% | Reduce -0.0% | 1,795,180 | $47.41M | $26.41 | No quote |
| 35 | CMG | CHIPOTLE MEXICAN GRILL INC | 0.41% | Reduce -69.9% | 152,944 | $47.08M | $307.83 | No quote |
| 36 | SPSC | SPS COMM INC | 0.38% | Add +50.3% | 765,318 | $43.4M | No quote | No quote |
| 37 | JPMWS | JPMORGAN CHASE & CO | 0.28% | - | 600,000 | $32.44M | No quote | No quote |
| 38 | ATHN | ATHENAHEALTH INC | 0.21% | Reduce -35.6% | 197,257 | $24.53M | No quote | No quote |
| 39 | DHI | D R HORTON INC | 0.16% | - | 455,000 | $18.17M | $39.93 | No quote |
| 40 | CARS | CARS COM INC | 0.14% | New | 611,021 | $16.26M | No quote | No quote |
| 41 | IRS | IRSA INVERSIONES Y REP S A | 0.12% | Add +22.8% | 571,000 | $14.02M | $24.55 | No quote |
| 42 | MTH | MERITAGE HOMES CORP | 0.12% | - | 315,000 | $13.99M | $44.40 | No quote |
| 43 | CRESY | CRESUD S A C I F Y A | 0.10% | - | 616,883 | $11.52M | No quote | No quote |
| 44 | TOL | TOLL BROTHERS INC | 0.10% | - | 270,000 | $11.2M | $41.47 | No quote |
| 45 | ETSY | ETSY INC | 0.09% | Reduce -40.1% | 590,000 | $9.96M | $16.88 | No quote |
| 46 | W | WAYFAIR INC | 0.07% | Reduce -41.8% | 125,400 | $8.45M | $67.40 | No quote |
| 47 | CABO | CABLE ONE INC | 0.06% | New | 10,000 | $7.22M | $722.10 | No quote |
| 48 | EXPD | EXPEDITORS INTL WASH INC | 0.06% | Add +1416.7% | 109,341 | $6.55M | $59.86 | No quote |
| 49 | GHC | GRAHAM HLDGS CO | 0.05% | New | 10,000 | $5.85M | $585.10 | No quote |
| 50 | TPRE | THIRD PT REINS LTD | 0.05% | Reduce -87.9% | 365,637 | $5.7M | No quote | No quote |
| 51 | FWONA | LIBERTY MEDIA CORP DELAWARE | 0.04% | Reduce -1.4% | 123,205 | $4.5M | $36.49 | No quote |
| 52 | SIG | SIGNET JEWELERS LIMITED | 0.04% | Reduce -1.4% | 64,174 | $4.27M | No quote | No quote |
| 53 | WST | WEST PHARMACEUTICAL SVSC INC | 0.03% | Reduce -3.3% | 41,383 | $3.98M | $96.27 | No quote |
| 54 | COST | COSTCO WHSL CORP NEW | 0.03% | Reduce -9.1% | 21,184 | $3.48M | $164.27 | No quote |
| 55 | UNP | UNION PAC CORP | 0.03% | Reduce -33.7% | 27,335 | $3.17M | $115.97 | No quote |
| 57 | PG | PROCTER AND GAMBLE CO | 0.03% | Reduce -24.3% | 32,146 | $2.93M | $90.99 | No quote |
| 56 | EIX | EDISON INTL | 0.03% | - | 37,900 | $2.93M | No quote | No quote |
| 58 | XOM | EXXON MOBIL CORP | 0.02% | Add +691.6% | 33,128 | $2.72M | $81.98 | No quote |
| 59 | KO | COCA COLA CO | 0.02% | - | 46,130 | $2.08M | $45.00 | No quote |
| 60 | AXP | AMERICAN EXPRESS CO | 0.01% | Reduce -1.8% | 13,500 | $1.22M | $90.44 | No quote |
| 61 | AEP | AMERICAN ELEC PWR INC | 0.01% | - | 14,390 | $1.01M | $70.26 | No quote |
| 62 | HDB | HDFC BANK LTD | 0.01% | Reduce -31.1% | 9,074 | $874K | $96.32 | No quote |
| 63 | PGR | PROGRESSIVE CORP OHIO | 0.01% | - | 17,557 | $850K | $48.41 | No quote |
| 64 | BABA | ALIBABA GROUP HLDG LTD | 0.01% | - | 3,335 | $576K | $172.71 | No quote |
| 65 | RYAAY | RYANAIR HLDGS PLC | 0.00% | Reduce -0.5% | 5,058 | $533K | $105.38 | No quote |
| 66 | TRMB | TRIMBLE INC | 0.00% | Reduce -1.7% | 12,186 | $478K | $39.23 | No quote |
| 67 | IDXX | IDEXX LABS INC | 0.00% | Reduce -13.3% | 2,919 | $454K | $155.53 | No quote |
| 68 | LII | LENNOX INTL INC | 0.00% | Reduce -3.8% | 1,831 | $328K | $179.14 | No quote |
| 69 | FAST | FASTENAL CO | 0.00% | Reduce -60.4% | 5,122 | $233K | $45.49 | No quote |
| 74 | TWX | TIME WARNER INC | - | Sold | 0 | $0 | No quote | No quote |
| 73 | JPM | JPMORGAN CHASE & CO | - | Sold | 0 | $0 | No quote | No quote |
| 72 | DHR | DANAHER CORP DEL | - | Sold | 0 | $0 | No quote | No quote |
| 71 | APPF | APPFOLIO INC | - | Sold | 0 | $0 | No quote | No quote |
| 70 | ALGN | ALIGN TECHNOLOGY INC | - | Sold | 0 | $0 | No quote | No quote |