GW&K Investment Management, LLC
Long book
$11.34B
Q1 2026
Positions
1020
Top-10 weight
13%
concentration
Last quarter
+14.6%
SPY +14.8%
Turnover
8%
of book per quarter
Strategy in plain words
auto-generated from filingsGW&K Investment Management, LLC is an institutional manager, running a $11.34B US long book across 1020 positions.
The portfolio is broadly diversified across 1020 positions (top 10 only 13%). The book barely moves quarter to quarter — a patient, low-turnover holder. Current anchor positions: ADVANCED ENERGY INDUSTRIES, MACOM TECHNOLOGY SOLUTIONS H, RBC BEARINGS INC, ITT INC, SPX TECHNOLOGIES INC.
Over the last 9 quarters its long book ran on average 1.2pp per quarter behind the S&P 500, beating the index in 2 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
-3.2%
Q2 2024
+7.4%
Q3 2024
+0.9%
Q4 2024
-7.2%
Q1 2025
+5.8%
Q2 2025
+7.4%
Q3 2025
+2.1%
Q4 2025
+1.4%
Q1 2026
+14.6%
Sector allocation
Industrials 20%
Healthcare 15%
Technology 15%
Financials 15%
Consumer discretionary 10%
Other 7%
Services media 6%
Energy 5%
Long book by quarter
What does GW&K Investment own?
Q1 2026 13F| Company | Sector | Shares | Value | % of book | Change |
|---|---|---|---|---|---|
| AEIS ADVANCED ENERGY INDUSTRIES | Technology | 601.1K | $194.0M | 1.7% | -11.8% |
| MTSI MACOM TECHNOLOGY SOLUTIONS H | Technology | 839.1K | $186.3M | 1.6% | -31.1% |
| RBC RBC BEARINGS INC | Industrials | 281.9K | $153.1M | 1.3% | -22.6% |
| ITT ITT INC | Industrials | 796.7K | $151.8M | 1.3% | -7.4% |
| SPXC SPX TECHNOLOGIES INC | Industrials | 675.1K | $135.0M | 1.2% | +28.8% |
| FIX COMFORT SYSTEMS USA INC | Industrials | 95.7K | $131.9M | 1.2% | -14.3% |
| GMED GLOBUS MEDICAL INC - A | Healthcare | 1.5M | $128.8M | 1.1% | -1.4% |
| APG API GROUP CORP | Services media | 3.1M | $126.1M | 1.1% | -1.9% |
| STRL STERLING INFRASTRUCTURE INC | Industrials | 304.7K | $124.1M | 1.1% | -2.3% |
| LOPE GRAND CANYON EDUCATION INC | Services media | 723.7K | $123.1M | 1.1% | -1.7% |
| BURL BURLINGTON STORES INC | Consumer discretionary | 339.5K | $110.5M | 1.0% | -0.5% |
| POWL POWELL INDUSTRIES INC | Industrials | 200.5K | $108.5M | 1.0% | -21.2% |
| TXRH TEXAS ROADHOUSE INC | Consumer discretionary | 638.8K | $105.5M | 0.9% | -2.1% |
| AVGO BROADCOM INC | Technology | 336.8K | $104.2M | 0.9% | -14.9% |
| FSS FEDERAL SIGNAL CORP | Industrials | 958.1K | $103.6M | 0.9% | +69.7% |
| INSM INSMED INC | Healthcare | 623.0K | $101.9M | 0.9% | +29.1% |
| NOVT NOVANTA INC | Technology | 858.7K | $101.4M | 0.9% | +16.5% |
| MSFT MICROSOFT CORP | Technology | 272.7K | $100.9M | 0.9% | -9.4% |
| IDA IDACORP INC | Utilities | 699.8K | $100.0M | 0.9% | -2.4% |
| MTDR MATADOR RESOURCES CO | Energy | 1.6M | $98.5M | 0.9% | -0.8% |
| MGY MAGNOLIA OIL & GAS CORP - A | Energy | 3.1M | $97.3M | 0.9% | -2.8% |
| SF STIFEL FINANCIAL CORP | Financials | 1.3M | $96.7M | 0.9% | +45.7% |
| MOG/A MOOG INC-CLASS A | Industrials | 328.9K | $96.3M | 0.8% | -2.3% |
| JBL JABIL INC | Technology | 345.3K | $91.7M | 0.8% | -6.1% |
| GTES GATES INDUSTRIAL CORP PLC | Industrials | 4.0M | $91.1M | 0.8% | -11.2% |
| HALO HALOZYME THERAPEUTICS INC | Healthcare | 1.4M | $90.1M | 0.8% | +11.1% |
| MEDP MEDPACE HOLDINGS INC | Healthcare | 182.8K | $87.8M | 0.8% | +17.0% |
| ENTG ENTEGRIS INC | Other | 739.1K | $86.6M | 0.8% | -1.2% |
| NDSN NORDSON CORP | Industrials | 312.6K | $83.2M | 0.7% | -10.7% |
| PFGC PERFORMANCE FOOD GROUP CO | Consumer discretionary | 966.9K | $82.8M | 0.7% | -0.7% |
| UMBF UMB FINANCIAL CORP | Financials | 701.2K | $79.1M | 0.7% | -2.4% |
| CVCO CAVCO INDUSTRIES INC | Other | 163.3K | $79.1M | 0.7% | +8.0% |
| NBIX NEUROCRINE BIOSCIENCES INC | Healthcare | 593.7K | $78.2M | 0.7% | +3.0% |
| BJ BJ'S WHOLESALE CLUB HOLDINGS | Consumer discretionary | 744.3K | $73.3M | 0.6% | -2.5% |
| AIT APPLIED INDUSTRIAL TECH INC | Consumer discretionary | 271.5K | $72.0M | 0.6% | +25.4% |
| BBIO BRIDGEBIO PHARMA INC | Healthcare | 962.6K | $71.5M | 0.6% | +53.7% |
| ESI ELEMENT SOLUTIONS INC | Other | 2.1M | $70.9M | 0.6% | -13.2% |
| JAZZ JAZZ PHARMACEUTICALS PLC | Healthcare | 371.1K | $70.2M | 0.6% | -13.2% |
| PIPR PIPER SANDLER COS | Financials | 915.8K | $70.1M | 0.6% | New |
| VOYA VOYA FINANCIAL INC | Financials | 1.0M | $69.6M | 0.6% | +10.3% |
| COHR COHERENT CORP | Other | 287.3K | $68.4M | 0.6% | New |
| SITE SITEONE LANDSCAPE SUPPLY INC | Consumer discretionary | 506.8K | $67.5M | 0.6% | -0.7% |
| ABBV ABBVIE INC | Healthcare | 309.4K | $67.3M | 0.6% | -17.5% |
| FN FABRINET | Technology | 128.3K | $66.9M | 0.6% | New |
| PM PHILIP MORRIS INTERNATIONAL | Consumer staples | 397.7K | $65.8M | 0.6% | -1.5% |
| RPM RPM INTERNATIONAL INC | Other | 646.2K | $64.2M | 0.6% | +14.8% |
| ETR ENTERGY CORP | Utilities | 568.7K | $63.9M | 0.6% | -1.6% |
| JPM JPMORGAN CHASE & CO | Financials | 214.5K | $63.1M | 0.6% | -1.4% |
| CFG CITIZENS FINANCIAL GROUP | Financials | 1.1M | $63.0M | 0.6% | -1.5% |
| GBCI GLACIER BANCORP INC | Financials | 1.4M | $62.9M | 0.6% | +5.8% |
13F filing history
| Period | Form | Filed | Entries | Reported value | Flags | Source |
|---|---|---|---|---|---|---|
| Q1 2026 | 13F-HR | May 13, 2026 | 1199 | $11.34B | $K fixed canonical | SEC ↗ |
| Q4 2025 | 13F-HR | Feb 11, 2026 | 1178 | $11.56B | $K fixed canonical | SEC ↗ |
| Q3 2025 | 13F-HR | Nov 12, 2025 | 1179 | $11.30B | $K fixed canonical | SEC ↗ |
| Q2 2025 | 13F-HR | Aug 11, 2025 | 1168 | $11.17B | $K fixed canonical | SEC ↗ |
| Q1 2025 | 13F-HR | May 5, 2025 | 1189 | $10.79B | $K fixed canonical | SEC ↗ |
| Q4 2024 | 13F-HR | Feb 5, 2025 | 1154 | $11.76B | $K fixed canonical | SEC ↗ |
| Q3 2024 | 13F-HR | Nov 7, 2024 | 1139 | $11.68B | $K fixed canonical | SEC ↗ |
| Q2 2024 | 13F-HR | Aug 12, 2024 | 1128 | $10.94B | $K fixed canonical | SEC ↗ |
| Q1 2024 | 13F-HR | May 8, 2024 | 1105 | $11.34B | $K fixed canonical | SEC ↗ |
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