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 2026-09-12 from SEC 13F data.
Live quotes available for 38 of 56 rows. Rows without a quote are marked unavailable.
| 1 | GOOGL | Alphabet Inc Cl A | 8.73% | Reduce -0.0% | 820,147 | $888.06M | $1082.80 | No quote |
| 2 | KMX | CARMAX INC | 8.48% | Reduce -13.3% | 9,936,651 | $862.8M | $86.83 | No quote |
| 3 | GOOG | Alphabet Inc. Cl C | 7.96% | Reduce -1.3% | 749,406 | $810.04M | $1080.91 | No quote |
| 4 | BRK-A | BERKSHIRE HATHAWAY INC DEL | 7.06% | Reduce -0.7% | 2,257 | $718.52M | $318350.02 | No quote |
| 5 | AMZN | AMAZON COM INC | 5.45% | Reduce -9.4% | 292,681 | $554.23M | $1893.63 | No quote |
| 6 | JEC | JACOBS ENGR GROUP INC | 5.38% | Add +0.6% | 6,485,142 | $547.28M | No quote | No quote |
| 7 | MA | Mastercard Inc | 5.26% | Add +0.4% | 2,022,084 | $534.9M | $264.53 | No quote |
| 8 | CACC | CREDIT ACCEP CORP MICH | 5.17% | Reduce -0.4% | 1,088,314 | $526.56M | $483.83 | No quote |
| 9 | BABA | Alibaba Group Sh ADR | 4.90% | Add +146.2% | 2,941,754 | $498.48M | $169.45 | No quote |
| 10 | FWONK | LIBERTY MEDIA CORP DELAWARE | 4.52% | Reduce -0.6% | 12,285,321 | $459.59M | $37.41 | No quote |
| 11 | META | Facebook Inc Cl A | 4.01% | Reduce -1.1% | 2,115,831 | $408.36M | $193.00 | No quote |
| 12 | FCAU | Fiat Chrysler Automobiles NV s | 3.81% | Reduce -0.1% | 28,038,165 | $387.49M | No quote | No quote |
| 13 | SCHW | THE CHARLES SCHWAB CORPORATI | 3.47% | Reduce -0.9% | 8,774,987 | $352.67M | $40.19 | No quote |
| 14 | BKNG | Booking Holdings Inc | 3.26% | Reduce -1.0% | 176,721 | $331.3M | $1874.71 | No quote |
| 15 | LBRDK | LIBERTY BROADBAND CORP | 3.22% | Reduce -1.3% | 3,145,043 | $327.78M | $104.22 | No quote |
| 16 | BRK-B | BERKSHIRE HATHAWAY INC DEL | 2.88% | Reduce -2.8% | 1,376,193 | $293.36M | $213.17 | No quote |
| 17 | V | Visa Inc Class A | 2.47% | Reduce -2.5% | 1,449,868 | $251.63M | $173.55 | No quote |
| 18 | JD | JD.com | 2.37% | Reduce -3.0% | 7,963,319 | $241.21M | $30.29 | No quote |
| 19 | MHK | MOHAWK INDS INC | 2.05% | Reduce -0.1% | 1,416,399 | $208.88M | $147.47 | No quote |
| 20 | BLDR | Builders Firstsource Inc. | 1.44% | - | 8,673,480 | $146.24M | $16.86 | No quote |
| 21 | SBGI | SINCLAIR BROADCAST GROUP INC | 1.12% | Add +60.6% | 2,120,000 | $113.7M | $53.63 | No quote |
| 22 | LBRDA | LIBERTY BROADBAND CORP | 1.04% | Reduce -0.9% | 1,032,500 | $106.18M | $102.84 | No quote |
| 23 | YNDX | Yandex NV Shs | 1.02% | - | 2,730,000 | $103.74M | No quote | No quote |
| 24 | BMCH | BMC Stock Holdings Inc. | 0.83% | - | 4,000,000 | $84.8M | No quote | No quote |
| 25 | SAIL | Sailpoint Technologies Holding | 0.79% | Add +903.5% | 4,014,000 | $80.44M | $20.04 | No quote |
| 26 | W | Wayfair Inc Cl A | 0.72% | - | 500,348 | $73.05M | $146.00 | No quote |
| 27 | EQH | AXA EQUITABLE HLDGS INC | 0.37% | New | 1,800,000 | $37.62M | $20.90 | No quote |
| 28 | GTT | GTT COMMUNICATIONS INC | 0.31% | - | 1,813,008 | $31.91M | No quote | No quote |
| 29 | RH | RH Com | 0.28% | Add +16.3% | 250,000 | $28.9M | $115.60 | No quote |
| 30 | GTYH | GTY TECHNOLOGY HOLDINGS INC | 0.27% | New | 4,000,000 | $27.4M | No quote | No quote |
| 31 | BIDU | BAIDU INC | 0.23% | - | 200,000 | $23.47M | $117.36 | No quote |
| 32 | CARG | CARGURUS INC | 0.21% | Add +70.7% | 605,000 | $21.85M | No quote | No quote |
| 33 | DOMO | DOMO INC | 0.20% | Add +11.9% | 750,000 | $20.49M | No quote | No quote |
| 34 | WTRH | WAITR HLDGS INC | 0.19% | New | 3,014,882 | $18.96M | No quote | No quote |
| 35 | IQ | Iqiyi Inc ADR | 0.14% | - | 713,000 | $14.72M | No quote | No quote |
| 36 | FWONA | LIBERTY MEDIA CORP DELAWARE | 0.13% | Reduce -0.2% | 380,117 | $13.63M | $35.86 | No quote |
| 37 | EXPD | EXPEDITORS INTL WASH INC | 0.08% | - | 102,132 | $7.75M | $75.86 | No quote |
| 38 | CRESY | CRESUD S A C I F Y A | 0.07% | - | 643,373 | $6.74M | No quote | No quote |
| 39 | EIX | EDISON INTL | 0.01% | Reduce -11.3% | 18,939 | $1.28M | No quote | No quote |
| 40 | PG | PROCTER AND GAMBLE CO | 0.01% | Reduce -17.5% | 10,971 | $1.2M | $109.65 | No quote |
| 41 | KO | COCA COLA CO | 0.01% | - | 22,888 | $1.17M | $50.90 | No quote |
| 42 | AEP | AMERICAN ELEC PWR CO INC | 0.01% | - | 13,090 | $1.15M | $88.01 | No quote |
| 43 | UNP | UNION PACIFIC CORP | 0.01% | Reduce -11.4% | 6,731 | $1.14M | $169.07 | No quote |
| 44 | AABA | ALTABA INC | 0.01% | Reduce -99.6% | 15,068 | $1.05M | No quote | No quote |
| 45 | ANET | ARISTA NETWORKS INC | 0.01% | New | 3,600 | $935K | $259.72 | No quote |
| 46 | TJX | TJX COS INC NEW | 0.01% | Reduce -45.6% | 17,364 | $918K | $52.87 | No quote |
| 47 | COST | Costco Wholesale Corp | 0.01% | Reduce -14.8% | 2,479 | $655K | $264.22 | No quote |
| 48 | IDXX | Idexx Laboratories Corp. | 0.00% | - | 1,146 | $316K | $275.74 | No quote |
| 49 | XRAY | Dentsply Sirona Inc. | 0.00% | New | 4,018 | $234K | $58.24 | No quote |
| 50 | WFC | WELLS FARGO CO NEW | 0.00% | Reduce -16.6% | 4,899 | $232K | $47.36 | No quote |
| 51 | RMNI | Rimini Street Inc. | 0.00% | - | 10,779 | $57K | $5.29 | No quote |
| 56 | NETS | NETSHOES CAYMAN LTD | - | Sold | 0 | $0 | No quote | No quote |
| 55 | EA | ELECTRONIC ARTS INC | - | Sold | 0 | $0 | No quote | No quote |
| 54 | DHI | D R HORTON INC | - | Sold | 0 | $0 | No quote | No quote |
| 53 | APPN | APPIAN CORP | - | Sold | 0 | $0 | No quote | No quote |
| 52 | AYX | ALTERYX INC | - | Sold | 0 | $0 | No quote | No quote |