Millstreet Capital Management LLC
Long book
$417.6M
Q1 2026
Positions
2
Top-10 weight
100%
concentration
Last quarter
+8.7%
SPY +14.8%
Turnover
33%
of book per quarter
Strategy in plain words
auto-generated from filingsMillstreet Capital Management LLC is a diversified fundamental manager, specialised in technology (94% of the long book), running a $417.6M US long book across 2 positions.
The portfolio is extremely concentrated — the top 10 positions are almost the whole book. The portfolio is actively managed, with meaningful quarterly turnover. Current anchor positions: DIEBOLD NIXDORF INC, DIVERSIFIED ENERGY CO.
Over the last 9 quarters its long book ran on average 5.8pp per quarter ahead of the S&P 500, beating the index in 6 of 9 quarters. We rate its filings as signal-bearing: position changes reflect genuine views.
Implied long-book return vs S&P 500
methodology: positions priced quarterly, no shorts/options Fund long book S&P 500
Q1 2024
+7.9%
Q2 2024
+15.7%
Q3 2024
-1.4%
Q4 2024
+1.2%
Q1 2025
+27.4%
Q2 2025
+6.8%
Q3 2025
+16.3%
Q4 2025
+9.8%
Q1 2026
+8.7%
Sector allocation
Technology 94%
Energy 6%
Long book by quarter
What does Millstreet Capital own?
Q1 2026 13F13F filing history
| Period | Form | Filed | Entries | Reported value | Flags | Source |
|---|---|---|---|---|---|---|
| Q1 2026 | 13F-HR | May 15, 2026 | 2 | $417.6M | canonical | SEC ↗ |
| Q4 2025 | 13F-HR | Feb 17, 2026 | 3 | $438.7M | canonical | SEC ↗ |
| Q3 2025 | 13F-HR | Nov 14, 2025 | 2 | $374.8M | canonical | SEC ↗ |
| Q2 2025 | 13F-HR | Aug 14, 2025 | 2 | $354.0M | canonical | SEC ↗ |
| Q1 2025 | 13F-HR | May 15, 2025 | 2 | $277.8M | canonical | SEC ↗ |
| Q4 2024 | 13F-HR | Feb 14, 2025 | 3 | $279.0M | canonical | SEC ↗ |
| Q3 2024 | 13F-HR | Nov 14, 2024 | 3 | $291.2M | canonical | SEC ↗ |
| Q2 2024 | 13F-HR | Aug 14, 2024 | 3 | $251.8M | canonical | SEC ↗ |
| Q1 2024 | 13F-HR | May 15, 2024 | 4 | $259.3M | canonical | SEC ↗ |