IRONWOOD INVESTMENT MANAGEMENT LLC
Long book
$239.8M
Q1 2026
Positions
179
Top-10 weight
29%
concentration
Last quarter
+17.9%
SPY +14.8%
Turnover
10%
of book per quarter
Strategy in plain words
auto-generated from filingsIRONWOOD INVESTMENT MANAGEMENT LLC is an institutional manager, running a $239.8M US long book across 179 positions.
The portfolio is moderately concentrated (top 10 ≈ 29% of the book). Turnover is modest: positions are typically held for years. Current anchor positions: VANGUARD TOTAL STOCK MKT ETF, ISHARES MSCI EAFE ETF, ISHARES 0-1 YEAR TREASURY BO, MYR GROUP INC/DELAWARE, VICOR CORP.
Over the last 9 quarters its long book ran on average 0.2pp per quarter behind the S&P 500, beating the index in 5 of 9 quarters. Signal value of individual moves is limited — treat changes as weak evidence.
Implied long-book return vs S&P 500
methodology: positions priced quarterly, no shorts/options Fund long book S&P 500
Q1 2024
-3.1%
Q2 2024
+7.0%
Q3 2024
-1.7%
Q4 2024
-8.0%
Q1 2025
+13.6%
Q2 2025
+10.4%
Q3 2025
+2.5%
Q4 2025
+0.0%
Q1 2026
+17.9%
Sector allocation
Technology 26%
Industrials 20%
Financials 12%
Other 11%
Consumer discretionary 10%
Healthcare 9%
Services media 4%
Materials 3%
Long book by quarter
What does IRONWOOD INVESTMENT own?
Q1 2026 13F| Company | Sector | Shares | Value | % of book | Change |
|---|---|---|---|---|---|
| MYRG MYR GROUP INC/DELAWARE | Industrials | 17.7K | $5.0M | 2.1% | -1.3% |
| VICR VICOR CORP | Technology | 30.9K | $5.0M | 2.1% | -0.9% |
| GPI GROUP 1 AUTOMOTIVE INC | Consumer discretionary | 14.6K | $4.8M | 2.0% | -2.0% |
| DY DYCOM INDUSTRIES INC | Industrials | 14.2K | $4.8M | 2.0% | -1.2% |
| BBIO BRIDGEBIO PHARMA INC | Healthcare | 61.0K | $4.5M | 1.9% | -1.3% |
| C CITIGROUP INC | Financials | 35.6K | $4.0M | 1.7% | 0.0% |
| CYTK CYTOKINETICS INC | Healthcare | 56.7K | $3.7M | 1.6% | -0.9% |
| SGI SOMNIGROUP INTERNATIONAL INC | Other | 47.0K | $3.5M | 1.4% | -1.4% |
| PEGA PEGASYSTEMS INC | Technology | 78.4K | $3.3M | 1.4% | -1.3% |
| TTMI TTM TECHNOLOGIES | Technology | 32.6K | $3.2M | 1.3% | -4.0% |
| GM GENERAL MOTORS CO | Industrials | 42.5K | $3.2M | 1.3% | -6.6% |
| TPC TUTOR PERINI CORP | Industrials | 40.2K | $3.1M | 1.3% | -1.1% |
| SM SM ENERGY CO | Energy | 95.4K | $3.0M | 1.2% | +19.1% |
| COHR COHERENT CORP | Other | 12.2K | $2.9M | 1.2% | -1.1% |
| MCK MCKESSON CORP | Consumer discretionary | 3.3K | $2.9M | 1.2% | -0.4% |
| ARW ARROW ELECTRONICS INC | Consumer discretionary | 19.3K | $2.8M | 1.2% | -11.9% |
| MRCY MERCURY SYSTEMS INC | Technology | 37.7K | $2.7M | 1.1% | -4.4% |
| DAR DARLING INGREDIENTS INC | Consumer staples | 42.5K | $2.6M | 1.1% | -0.2% |
| ASML ASML HOLDING NV-NY REG SHS | Industrials | 2.0K | $2.6M | 1.1% | +22.8% |
| GFF GRIFFON CORP | Industrials | 34.6K | $2.5M | 1.1% | -4.8% |
| EXTR EXTREME NETWORKS INC | Technology | 161.4K | $2.4M | 1.0% | +56.2% |
| SMCI SUPER MICRO COMPUTER INC | Technology | 104.3K | $2.4M | 1.0% | -0.5% |
| PI IMPINJ INC | Technology | 22.7K | $2.3M | 1.0% | +36.4% |
| KOP KOPPERS HOLDINGS INC | Other | 59.4K | $2.3M | 1.0% | -23.3% |
| FNV FRANCO-NEVADA CORP | Materials | 9.3K | $2.3M | 1.0% | +5.6% |
| BBSI BARRETT BUSINESS SVCS INC | Services media | 74.5K | $2.2M | 0.9% | -0.5% |
| CVGI COMMERCIAL VEHICLE GROUP INC | Industrials | 637.0K | $2.2M | 0.9% | Held |
| WTS WATTS WATER TECHNOLOGIES-A | Industrials | 7.2K | $2.1M | 0.9% | -1.1% |
| FRPT FRESHPET INC | Consumer staples | 35.2K | $2.1M | 0.9% | +0.3% |
| NPKI NPK INTERNATIONAL INC | Services media | 140.6K | $2.0M | 0.8% | -0.9% |
| WSM WILLIAMS-SONOMA INC | Consumer discretionary | 10.9K | $2.0M | 0.8% | +0.5% |
| ATRO ASTRONICS CORP | Industrials | 29.4K | $2.0M | 0.8% | -1.3% |
| PFE PFIZER INC | Healthcare | 64.9K | $1.8M | 0.8% | +17.6% |
| EVLV EVOLV TECHNOLOGIES HOLDINGS | Technology | 290.4K | $1.8M | 0.7% | -1.7% |
| CSCO CISCO SYSTEMS INC | Technology | 22.2K | $1.7M | 0.7% | -0.4% |
| TDY TELEDYNE TECHNOLOGIES INC | Technology | 2.8K | $1.7M | 0.7% | -4.4% |
| AUPH AURINIA PHARMACEUTICALS INC | Healthcare | 113.1K | $1.7M | 0.7% | -1.4% |
| THG HANOVER INSURANCE GROUP INC/ | Financials | 9.2K | $1.6M | 0.7% | -0.8% |
| GT GOODYEAR TIRE & RUBBER CO | Other | 240.0K | $1.6M | 0.7% | +3.4% |
| GOOGL ALPHABET INC-CL A | Technology | 5.4K | $1.6M | 0.6% | -4.2% |
| MSFT MICROSOFT CORP | Technology | 4.0K | $1.5M | 0.6% | -3.5% |
| KSS KOHLS CORP | Consumer discretionary | 112.8K | $1.5M | 0.6% | +1.8% |
| IBM INTL BUSINESS MACHINES CORP | Technology | 5.9K | $1.4M | 0.6% | +2.1% |
| SHOO STEVEN MADDEN LTD | Other | 41.7K | $1.4M | 0.6% | -1.1% |
| FAST FASTENAL CO | Consumer discretionary | 29.6K | $1.4M | 0.6% | -4.5% |
| UFPI UFP INDUSTRIES INC | Other | 14.7K | $1.4M | 0.6% | +0.2% |
| CBT CABOT CORP | Other | 18.0K | $1.4M | 0.6% | -1.0% |
| BDC BELDEN INC | Industrials | 11.8K | $1.3M | 0.6% | Held |
| LXU LSB INDUSTRIES INC | Materials | 85.2K | $1.3M | 0.5% | +4.4% |
| NATL NCR ATLEOS CORP | Technology | 27.9K | $1.2M | 0.5% | Held |
13F filing history
| Period | Form | Filed | Entries | Reported value | Flags | Source |
|---|---|---|---|---|---|---|
| Q1 2026 | 13F-HR | May 15, 2026 | 179 | $239.8M | canonical | SEC ↗ |
| Q4 2025 | 13F-HR | Feb 12, 2026 | 172 | $237.8M | canonical | SEC ↗ |
| Q3 2025 | 13F-HR | Nov 13, 2025 | 171 | $229.3M | canonical | SEC ↗ |
| Q2 2025 | 13F-HR | Aug 13, 2025 | 167 | $205.5M | canonical | SEC ↗ |
| Q1 2025 | 13F-HR | May 15, 2025 | 163 | $183.4M | canonical | SEC ↗ |
| Q4 2024 | 13F-HR | Feb 10, 2025 | 169 | $200.8M | canonical | SEC ↗ |
| Q3 2024 | 13F-HR | Nov 14, 2024 | 174 | $205.3M | canonical | SEC ↗ |
| Q2 2024 | 13F-HR | Aug 16, 2024 | 169 | $187.0M | canonical | SEC ↗ |
| Q1 2024 | 13F-HR | May 15, 2024 | 174 | $204.9M | canonical | SEC ↗ |
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