Ruane Cunniff
Ruane, Cunniff & Goldfarb L.P.
Bill Ruane and Rick Cunniff started the firm in 1969 in the belief that they could outperform the stock market by investing in great businesses selling at reasonable prices and staying with them as long as they remained attractive. By doing exhaustive primary research, ignoring fads and sticking to their principles, the firm has built an enviable track record. William Ruane was a Graham-and-Doddsville superinvestor recognized by Warren Buffett. He was a student of Benjamin Graham, and attended his class at the same time as Warren Buffett.
Sector Allocation
Level 3 sector breakdown
Level 1 sector breakdown
Level 2 sector breakdown
Level 3 sector breakdown
Software & IT Services
Investment Banking & Investment Services
Healthcare Providers & Services
Professional & Commercial Services
Biotechnology & Medical Research
Semiconductors & Semiconductor Equipment
Media & Publishing
Banking Services
Consumer Goods Conglomerates
Healthcare Equipment & Supplies
Pharmaceuticals
Other
Holdings
2026Q2
2026Q2
2026Q1
2025Q4
2025Q3
2025Q2
2025Q1
No.
Name
% Portfolio
Shares Traded
Mkt Value (Date)
Market Value
Shares Held
Industry
Report Date
Watchlist
8.71%
-35.69K
$560.06M
$558.56M
1.17M
Semiconductors & Semiconductor Equipment
2026-06-30
Liberty Media Formula One Ord Shs Series C (US)
FWONK
7.73%
-133.72K
$496.96M
--
5.22M
Media & Publishing
2026-06-30
6.56%
-143.43K
$421.80M
$420.57M
4.57M
Investment Banking & Investment Services
2026-06-30
5.89%
-408.37K
$378.84M
$377.20M
979.60K
Healthcare Providers & Services
2026-06-30
4.90%
-78.63K
$315.25M
$314.21M
2.56M
Investment Banking & Investment Services
2026-06-30