Polymer Capital Management (US) LLC
Long book
$675.1M
Q1 2026
Positions
733
Top-10 weight
16%
concentration
Last quarter
+14.9%
SPY +14.8%
Turnover
52%
of book per quarter
Strategy in plain words
auto-generated from filingsPolymer Capital Management (US) LLC is a quantitative fund whose holdings reflect models, not opinions, running a $675.1M US long book across 733 positions.
The portfolio is broadly diversified across 733 positions (top 10 only 16%). Turnover is high — positions rotate quickly, so individual names matter less than the process. Current anchor positions: NVIDIA CORP, LUMENTUM HOLDINGS INC, BROADCOM INC, CORNING INC, ASML HOLDING NV-NY REG SHS.
Over the last 6 quarters its long book ran on average 3.3pp per quarter ahead of the S&P 500, beating the index in 4 of 6 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
Q4 2024
-4.6%
Q1 2025
+10.2%
Q2 2025
+14.0%
Q3 2025
+6.2%
Q4 2025
+6.8%
Q1 2026
+14.9%
Sector allocation
Technology 29%
Industrials 18%
Financials 10%
Utilities 7%
Consumer discretionary 7%
Other 7%
Materials 5%
Services media 5%
Long book by quarter
What does Polymer Capital own?
Q1 2026 13F| Company | Sector | Shares | Value | % of book | Change |
|---|---|---|---|---|---|
| NVDA NVIDIA CORP | Technology | 173.5K | $30.3M | 4.5% | +70.0% |
| LITE LUMENTUM HOLDINGS INC | Technology | 30.4K | $21.4M | 3.2% | -40.0% |
| AVGO BROADCOM INC | Technology | 37.2K | $11.5M | 1.7% | +2127.8% |
| GLW CORNING INC | Industrials | 61.2K | $8.3M | 1.2% | +330.8% |
| ASML ASML HOLDING NV-NY REG SHS | Industrials | 5.6K | $7.4M | 1.1% | New |
| GOOGL ALPHABET INC-CL A | Technology | 23.2K | $6.7M | 1.0% | +142.3% |
| RIG TRANSOCEAN LTD | Energy | 1.0M | $6.7M | 1.0% | -17.7% |
| MU MICRON TECHNOLOGY INC | Technology | 18.9K | $6.4M | 0.9% | -72.0% |
| AEP AMERICAN ELECTRIC POWER | Utilities | 48.0K | $6.3M | 0.9% | -4.1% |
| POR PORTLAND GENERAL ELECTRIC CO | Utilities | 117.5K | $6.2M | 0.9% | +95.8% |
| ONTO ONTO INNOVATION INC | Other | 29.1K | $6.0M | 0.9% | +11.1% |
| MCHP MICROCHIP TECHNOLOGY INC | Technology | 91.2K | $5.9M | 0.9% | -26.7% |
| VRT VERTIV HOLDINGS CO-A | Technology | 22.4K | $5.6M | 0.8% | -37.8% |
| XEL XCEL ENERGY INC | Utilities | 70.0K | $5.6M | 0.8% | -22.2% |
| NXT NEXTPOWER INC-CL A | Technology | 44.4K | $5.4M | 0.8% | +779.5% |
| ECL ECOLAB INC | Other | 19.3K | $5.1M | 0.8% | +34.9% |
| SHW SHERWIN-WILLIAMS CO/THE | Consumer discretionary | 15.8K | $5.1M | 0.8% | +577.4% |
| TSEM TOWER SEMICONDUCTOR LTD | Technology | 27.7K | $4.9M | 0.7% | -36.0% |
| PH PARKER HANNIFIN CORP | Industrials | 5.3K | $4.8M | 0.7% | +6.9% |
| AMD ADVANCED MICRO DEVICES | Technology | 21.4K | $4.4M | 0.6% | -54.4% |
| AA ALCOA CORP | Industrials | 63.4K | $4.2M | 0.6% | +92.7% |
| KEYS KEYSIGHT TECHNOLOGIES IN | Technology | 14.8K | $4.2M | 0.6% | -38.4% |
| CRWV COREWEAVE INC-CL A | Technology | 53.8K | $4.2M | 0.6% | +2024.9% |
| TER TERADYNE INC | Technology | 13.6K | $4.0M | 0.6% | -31.9% |
| LIN LINDE PLC | Materials | 8.1K | $4.0M | 0.6% | -48.5% |
| CMI CUMMINS INC | Industrials | 7.1K | $3.8M | 0.6% | +18.0% |
| MDLN MEDLINE INC-CL A | Healthcare | 85.0K | $3.8M | 0.6% | Held |
| NBIS NEBIUS GROUP NV | Technology | 36.3K | $3.8M | 0.6% | New |
| CF CF INDUSTRIES HOLDINGS INC | Other | 27.9K | $3.6M | 0.5% | +254.8% |
| NI NISOURCE INC | Utilities | 75.0K | $3.5M | 0.5% | -40.0% |
| BA BOEING CO/THE | Industrials | 17.4K | $3.5M | 0.5% | -28.1% |
| DD DUPONT DE NEMOURS INC | Materials | 74.7K | $3.4M | 0.5% | +1.3% |
| AME AMETEK INC | Technology | 15.1K | $3.2M | 0.5% | +18.5% |
| QRVO QORVO INC | Technology | 40.9K | $3.2M | 0.5% | -40.9% |
| FCX FREEPORT-MCMORAN INC | Materials | 51.9K | $3.1M | 0.5% | -20.5% |
| GEV GE VERNOVA INC | Industrials | 3.4K | $3.0M | 0.4% | -35.3% |
| MLM MARTIN MARIETTA MATERIALS | Materials | 5.0K | $2.9M | 0.4% | +209.9% |
| CBRE CBRE GROUP INC - A | Real estate | 21.4K | $2.9M | 0.4% | +11.2% |
| COF CAPITAL ONE FINANCIAL CORP | Financials | 15.8K | $2.9M | 0.4% | New |
| ROK ROCKWELL AUTOMATION INC | Other | 8.0K | $2.9M | 0.4% | +9.8% |
| FPS FORGENT POWER SOLUTIONS-CL A | Industrials | 97.6K | $2.9M | 0.4% | New |
| CAT CATERPILLAR INC | Industrials | 4.0K | $2.8M | 0.4% | -20.0% |
| AEE AMEREN CORPORATION | Utilities | 25.7K | $2.8M | 0.4% | -64.4% |
| EMN EASTMAN CHEMICAL CO | Materials | 35.0K | $2.7M | 0.4% | -17.3% |
| AMKR AMKOR TECHNOLOGY INC | Technology | 58.9K | $2.7M | 0.4% | +164.0% |
| DTE DTE ENERGY COMPANY | Utilities | 17.4K | $2.5M | 0.4% | -70.4% |
| TRV TRAVELERS COS INC/THE | Financials | 8.7K | $2.5M | 0.4% | +624.5% |
| DOV DOVER CORP | Industrials | 12.1K | $2.5M | 0.4% | +50.0% |
| VLO VALERO ENERGY CORP | Energy | 10.2K | $2.5M | 0.4% | +326.3% |
| OVV OVINTIV INC | Energy | 41.7K | $2.5M | 0.4% | +85.2% |
13F filing history
| Period | Form | Filed | Entries | Reported value | Flags | Source |
|---|---|---|---|---|---|---|
| Q1 2026 | 13F-HR | May 14, 2026 | 803 | $987.6M | canonical | SEC ↗ |
| Q4 2025 | 13F-HR | Feb 17, 2026 | 742 | $952.8M | canonical | SEC ↗ |
| Q3 2025 | 13F-HR | Nov 14, 2025 | 747 | $944.6M | canonical | SEC ↗ |
| Q2 2025 | 13F-HR | Aug 14, 2025 | 1162 | $846.5M | canonical | SEC ↗ |
| Q1 2025 | 13F-HR | May 15, 2025 | 487 | $387.8M | canonical | SEC ↗ |
| Q4 2024 | 13F-HR | Feb 13, 2025 | 352 | $369.9M | canonical | SEC ↗ |
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