Atom Investors LP
In its 13F for Q3 2025 (holdings as of September 30, 2025, filed November 14, 2025), Atom Investors LP reported 584 stock positions worth $1.3 billion. Its top holding was iShares Russell 2000 ETF (IWM) at 7.4% of the portfolio, followed by SS SPDR S&P 500 ETF Trust-US (SPY, 5.1%) and iShares Russell 2000 Value E (IWN, 3.1%). Compared with Q2 2025, it opened 284 new positions, sold out of 287, added to 149 and reduced 136. The biggest buy was SS SPDR S&P 500 ETF Trust-US (SPY, shares +659%) and the biggest sale SS Financial Select Sector (XLF, shares −39%).
- Most Recent 13F
- Q2 2026
- Location
- AUSTIN, TX
- CIK
- 0001738902
- Portfolio Value
- $1.3B (Q3 2025)
- SEC Filing
- 0001214659-25-016495 ↗ filed Nov 14, 2025
Holdings Value
Holdings 584 stocks · $1.3B
| IWM iShares Russell 2000 ETF | 7.42% | 404,557 | $97.9M | Add +28.5% |
| SPY SS SPDR S&P 500 ETF Trust-US | 5.10% | 101,039 | $67.3M | Add +659.2% |
| IWN iShares Russell 2000 Value E | 3.07% | 229,369 | $40.6M | Reduce -18.4% |
| XRT SS SPDR S&P Retail ETF | 1.55% | 237,782 | $20.5M | Add +5.9% |
| XLF SS Financial Select Sector | 1.37% | 335,143 | $18.1M | Reduce -38.8% |
| QQQ Invesco QQQ Trust Series 1 | 1.20% | 26,313 | $15.8M | New |
| XHB SS SPDR S&P Homebldrs ETF | 1.19% | 141,909 | $15.7M | Reduce -23.2% |
| XLV SS Health Care Select Sector | 1.12% | 105,991 | $14.8M | Reduce -12.2% |
| XBI SS SPDR S&P Biotech ETF | 0.93% | 122,069 | $12.2M | Add +45.2% |
| CSL Carlisle Cos Inc. | 0.82% | 33,058 | $10.9M | Add +29.9% |
| XLI SS Industrial Select Sector | 0.79% | 67,711 | $10.4M | Add +38.8% |
| OLLI Ollie's Bargain Outlet Holdi | 0.79% | 80,643 | $10.4M | Add +265.5% |
| ETR Entergy Corp. | 0.78% | 110,147 | $10.3M | Reduce -12.6% |
| USMV iShares MSCI USA Min Vol Fac | 0.78% | 107,544 | $10.2M | Reduce -4.4% |
| VNOM Viper Energy Inc. Class A | 0.77% | 267,132 | $10.2M | New |
| CI The Cigna Group | 0.76% | 34,926 | $10.1M | Add +1931.8% |
| MIDD Middleby Corp. | 0.74% | 73,378 | $9.8M | New |
| AZZ Azz Inc. | 0.70% | 84,282 | $9.2M | New |
| LUV Southwest Airlines Co. | 0.67% | 276,239 | $8.8M | New |
| SYY Sysco Corp. | 0.67% | 106,604 | $8.8M | Reduce -3.9% |
| HUBB Hubbell Inc. | 0.66% | 20,305 | $8.7M | Add +109.3% |
| BC Brunswick Corp. | 0.65% | 135,438 | $8.6M | Reduce -22.4% |
| LRN Stride Inc. | 0.64% | 56,800 | $8.5M | Add +32.1% |
| META Meta Platforms Inc. Class A | 0.64% | 11,431 | $8.4M | Add +336.6% |
| CNK Cinemark Holdings Inc. | 0.63% | 297,693 | $8.3M | Reduce -5.9% |
| HURN Huron Consulting Group Inc. | 0.62% | 56,093 | $8.2M | Add +859.5% |
| SHW The Sherwin-Williams Co. | 0.60% | 22,900 | $7.9M | New |
| GPGI Gpgi Inc. filed as COMPOSECURE INC | 0.59% | 373,662 | $7.8M | Add +7.3% |
| IGV iShares Expanded Tech-Softwa | 0.58% | 66,735 | $7.7M | Add +193.7% |
| PRGO Perrigo Co. PLC | 0.56% | 334,603 | $7.5M | Add +58.0% |
| VECO Veeco Instruments Inc. | 0.56% | 240,687 | $7.3M | New |
| HTGC Hercules Capital Inc. | 0.55% | 385,594 | $7.3M | Reduce -0.7% |
| CRM Salesforce Inc. | 0.54% | 30,215 | $7.2M | Reduce -45.6% |
| OIH Vaneck Oil Services ETF | 0.53% | 27,029 | $7.0M | Add +16.0% |
| PGR Progressive Corp. | 0.53% | 28,120 | $6.9M | Add +2079.8% |
| UHS Universal Health Services-B | 0.52% | 33,638 | $6.9M | Add +646.4% |
| XLE SS Energy Select Sector | 0.52% | 76,880 | $6.9M | Add +13.9% |
| NOW ServiceNow Inc. | 0.52% | 7,455 | $6.9M | Add +602.6% |
| FUN Six Flags Entertainment Corp. | 0.51% | 298,657 | $6.8M | Add +82.0% |
| AAON Aaon Inc. | 0.51% | 72,132 | $6.7M | Add +52.3% |
| NKE Nike Inc. Class B | 0.51% | 96,402 | $6.7M | Reduce -35.5% |
| BRO Brown & Brown Inc. | 0.50% | 70,910 | $6.7M | Add +294.0% |
| TYL Tyler Technologies Inc. | 0.50% | 12,703 | $6.6M | Add +72.9% |
| MTUM iShares MSCI USA Momentum Fa | 0.50% | 25,821 | $6.6M | New |
| WM Waste Management Inc. | 0.49% | 29,326 | $6.5M | Add +97.0% |
| PPL PPL Corp. | 0.49% | 173,869 | $6.5M | Add +38.3% |
| PFSI Pennymac Financial Services | 0.49% | 51,821 | $6.4M | New |
| PCG P G & E Corp. | 0.48% | 423,665 | $6.4M | Add +24.6% |
| SMH Vaneck Semiconductor ETF | 0.48% | 19,557 | $6.4M | Add +125.2% |
| XLK SS Technology Select Sector | 0.47% | 21,872 | $6.2M | Add +116.2% |
| BILL Bill Holdings Inc. | 0.47% | 115,833 | $6.1M | New |
| DVA Davita Inc. | 0.46% | 45,997 | $6.1M | New |
| ESI Element Solutions Inc. | 0.46% | 239,108 | $6.0M | Add +149.9% |
| GPC Genuine Parts Co. | 0.45% | 43,217 | $6.0M | New |
| BLD Topbuild Corp. | 0.45% | 15,078 | $5.9M | Add +1615.4% |
| LKQ LKQ Corp. | 0.45% | 192,794 | $5.9M | New |
| AA Alcoa Corp. | 0.44% | 177,309 | $5.8M | Add +36.1% |
| URGN Urogen Pharma Ltd. | 0.44% | 291,962 | $5.8M | Reduce -8.1% |
| AMBA Ambarella Inc. | 0.43% | 68,487 | $5.7M | Add +191.0% |
| HLI Houlihan Lokey Inc. | 0.43% | 27,386 | $5.6M | New |
| PHIN Phinia Inc. | 0.42% | 97,201 | $5.6M | Reduce -18.0% |
| XOP SS SPDR S&P Og Exp & Prod | 0.42% | 42,079 | $5.6M | Reduce -6.9% |
| DLTR Dollar Tree Inc. | 0.42% | 58,755 | $5.5M | Add +1360.1% |
| ACI Albertsons Cos Inc. Class A | 0.42% | 313,219 | $5.5M | Add +39.6% |
| MBUU Malibu Boats Inc. Class A | 0.41% | 167,645 | $5.4M | Add +10.0% |
| PFGC Performance Food Group Co. | 0.41% | 52,017 | $5.4M | New |
| VEA Vanguard Ftse Developed ETF | 0.41% | 89,982 | $5.4M | New |
| MOH Molina Healthcare Inc. | 0.41% | 28,071 | $5.4M | New |
| CVLT Commvault Systems Inc. | 0.40% | 28,275 | $5.3M | New |
| GLNG Golar LNG Ltd. | 0.40% | 130,404 | $5.3M | Add +85.9% |
| VSAT Viasat Inc. | 0.38% | 172,116 | $5.0M | Reduce -11.8% |
| CRS Carpenter Technology | 0.38% | 20,363 | $5.0M | New |
| BLDR Builders Firstsource Inc. | 0.37% | 40,517 | $4.9M | New |
| MSFT Microsoft Corp. | 0.37% | 9,433 | $4.9M | Add +10.2% |
| XLB SS Materials Select Sector | 0.37% | 54,337 | $4.9M | New |
| APD Air Products & Chemicals Inc. | 0.37% | 17,759 | $4.8M | Reduce -1.3% |
| COR Cencora Inc. | 0.37% | 15,494 | $4.8M | New |
| IBB iShares Biotechnology ETF | 0.37% | 33,539 | $4.8M | Add +14.0% |
| DHR Danaher Corp. | 0.37% | 24,376 | $4.8M | Add +128.7% |
| FICO Fair Isaac Corp. | 0.35% | 3,116 | $4.7M | Reduce -22.9% |
| AAP Advance Auto Parts Inc. | 0.35% | 75,528 | $4.6M | Reduce -25.1% |
| EHC Encompass Health Corp. | 0.35% | 36,407 | $4.6M | New |
| RSP Invesco S&P 500 Equal Weight | 0.35% | 24,366 | $4.6M | Reduce -59.9% |
| SSB Southstate Bank Corp. | 0.35% | 46,633 | $4.6M | Reduce -54.0% |
| BMY Bristol-Myers Squibb Co. | 0.35% | 101,509 | $4.6M | Add +94.4% |
| ONTO Onto Innovation Inc. | 0.35% | 35,223 | $4.6M | Add +1138.1% |
| CMCSA Comcast Corp. Class A | 0.34% | 144,076 | $4.5M | Add +28.1% |
| XLP SS Consumer Staples Sel Sect | 0.34% | 56,745 | $4.4M | New |
| AEE Ameren Corporation | 0.33% | 41,977 | $4.4M | Add +107.2% |
| TSLX Sixth Street Specialty Lendi | 0.33% | 187,604 | $4.3M | New |
| CVGW Calavo Growers Inc. | 0.32% | 164,891 | $4.2M | New |
| PR Permian Resources Corp. Class A | 0.32% | 331,339 | $4.2M | Add +5.7% |
| KHC The Kraft Heinz Co. | 0.32% | 162,130 | $4.2M | New |
| BRBR Bellring Brands Inc. | 0.31% | 114,011 | $4.1M | Add +2278.2% |
| AAPL Apple Inc. | 0.31% | 16,216 | $4.1M | New |
| LITE Lumentum Holdings Inc. | 0.31% | 24,734 | $4.0M | Reduce -66.0% |
| NVDA Nvidia Corp. | 0.29% | 20,767 | $3.9M | Reduce -33.4% |
| STE Steris PLC | 0.29% | 15,593 | $3.9M | Reduce -21.5% |
| CSX CSX Corp. | 0.29% | 108,216 | $3.8M | New |
| ADP Automatic Data Processing | 0.29% | 12,957 | $3.8M | New |
Portfolio Sells Q2 2025 → Q3 2025
| XLF SS Financial Select Sector | Reduce -38.8% | 1.37% | −1.17 |
| IWN iShares Russell 2000 Value E | Reduce -18.4% | 3.07% | −0.86 |
| AWK American Water Works Co. Inc. | Reduce -92.5% | 0.06% | −0.86 |
| CVX Chevron Corp. | Sold out | 0.00% | −0.81 |
| CRM Salesforce Inc. | Reduce -45.6% | 0.54% | −0.80 |
| GOOGL Alphabet Inc. Class A | Sold out | 0.00% | −0.66 |
| DY Dycom Industries Inc. | Sold out | 0.00% | −0.63 |
| RSP Invesco S&P 500 Equal Weight | Reduce -59.9% | 0.35% | −0.63 |
| STM Stmicroelectronics NV-NY SHS | Sold out | 0.00% | −0.60 |
| ELV Elevance Health Inc. | Sold out | 0.00% | −0.59 |
| ZBRA Zebra Technologies Corp. Class A | Sold out | 0.00% | −0.56 |
| ADC Agree Realty Corp. | Reduce -69.1% | 0.18% | −0.52 |
| TRS Trimas Corp. | Reduce -97.3% | 0.02% | −0.51 |
| LINE Lineage Inc. | Reduce -88.0% | 0.05% | −0.50 |
| DXCM Dexcom Inc. | Sold out | 0.00% | −0.49 |
| WTRG Essential Utilities Inc. | Sold out | 0.00% | −0.49 |
| MTN Vail Resorts Inc. | Reduce -60.0% | 0.24% | −0.49 |
| OSIS Osi Systems Inc. | Sold out | 0.00% | −0.48 |
| SSB Southstate Bank Corp. | Reduce -54.0% | 0.35% | −0.48 |
| VTR Ventas Inc. | Sold out | 0.00% | −0.47 |
| STZ Constellation Brands Inc. Class A | Reduce -57.2% | 0.20% | −0.46 |
| SPGI S&P Global Inc. | Sold out | 0.00% | −0.44 |
| ITB iShares U.S. Home Constructi | Reduce -83.7% | 0.08% | −0.44 |
| NKE Nike Inc. Class B | Reduce -35.5% | 0.51% | −0.43 |
| XHB SS SPDR S&P Homebldrs ETF | Reduce -23.2% | 1.19% | −0.42 |
| JNJ Johnson & Johnson | Sold out | 0.00% | −0.42 |
| PAYX Paychex Inc. | Sold out | 0.00% | −0.41 |
| APTV Aptiv PLC | Sold out | 0.00% | −0.39 |
| MKTX Marketaxess Holdings Inc. | Sold out | 0.00% | −0.38 |
| CAG Conagra Brands Inc. | Sold out | 0.00% | −0.37 |
| CLX Clorox Company | Sold out | 0.00% | −0.36 |
| CRCL Circle Internet Group Inc. | Sold out | 0.00% | −0.35 |
| RF Regions Financial Corp. | Sold out | 0.00% | −0.35 |
| MRUS Merus NV | Sold out | 0.00% | −0.34 |
| ROK Rockwell Automation Inc. | Reduce -94.6% | 0.02% | −0.34 |
| CZR Caesars Entertainment Inc. | Sold out | 0.00% | −0.33 |
| TTE Totalenergies SE -Spon ADR | Sold out | 0.00% | −0.33 |
| XLV SS Health Care Select Sector | Reduce -12.2% | 1.12% | −0.32 |
| LSCC Lattice Semiconductor Corp. | Sold out | 0.00% | −0.32 |
| DD Dupont DE Nemours Inc. | Sold out | 0.00% | −0.32 |
| SKY Champion Homes Inc. | Sold out | 0.00% | −0.32 |
| LITE Lumentum Holdings Inc. | Reduce -66.0% | 0.31% | −0.31 |
| SHEL Shell PLC-ADR | Sold out | 0.00% | −0.30 |
| FICO Fair Isaac Corp. | Reduce -22.9% | 0.35% | −0.30 |
| USB US Bancorp | Reduce -90.4% | 0.03% | −0.30 |
| ANSS Ansys Inc. | Sold out | 0.00% | −0.29 |
| GEHC GE Healthcare Technology | Sold out | 0.00% | −0.28 |
| ASML ASML Holding NV-NY Reg SHS | Sold out | 0.00% | −0.27 |
| FTS Fortis Inc. | Sold out | 0.00% | −0.27 |
| SWIM Latham Group Inc. | Sold out | 0.00% | −0.27 |
Portfolio Buys Q2 2025 → Q3 2025
| SPY SS SPDR S&P 500 ETF Trust-US | Add +659.2% | 5.10% | +4.37 |
| IWM iShares Russell 2000 ETF | Add +28.5% | 7.42% | +1.40 |
| QQQ Invesco QQQ Trust Series 1 | New | 1.20% | +1.20 |
| VNOM Viper Energy Inc. Class A | New | 0.77% | +0.77 |
| MIDD Middleby Corp. | New | 0.74% | +0.74 |
| CI The Cigna Group | Add +1931.8% | 0.76% | +0.71 |
| AZZ Azz Inc. | New | 0.70% | +0.70 |
| LUV Southwest Airlines Co. | New | 0.67% | +0.67 |
| SHW The Sherwin-Williams Co. | New | 0.60% | +0.60 |
| VECO Veeco Instruments Inc. | New | 0.56% | +0.56 |
| HURN Huron Consulting Group Inc. | Add +859.5% | 0.62% | +0.55 |
| OLLI Ollie's Bargain Outlet Holdi | Add +265.5% | 0.79% | +0.53 |
| MTUM iShares MSCI USA Momentum Fa | New | 0.50% | +0.50 |
| PGR Progressive Corp. | Add +2079.8% | 0.53% | +0.50 |
| PFSI Pennymac Financial Services | New | 0.49% | +0.49 |
| BILL Bill Holdings Inc. | New | 0.47% | +0.47 |
| META Meta Platforms Inc. Class A | Add +336.6% | 0.64% | +0.47 |
| DVA Davita Inc. | New | 0.46% | +0.46 |
| GPC Genuine Parts Co. | New | 0.45% | +0.45 |
| UHS Universal Health Services-B | Add +646.4% | 0.52% | +0.45 |
| LKQ LKQ Corp. | New | 0.45% | +0.45 |
| HLI Houlihan Lokey Inc. | New | 0.43% | +0.43 |
| NOW ServiceNow Inc. | Add +602.6% | 0.52% | +0.42 |
| BLD Topbuild Corp. | Add +1615.4% | 0.45% | +0.42 |
| PFGC Performance Food Group Co. | New | 0.41% | +0.41 |
| VEA Vanguard Ftse Developed ETF | New | 0.41% | +0.41 |
| MOH Molina Healthcare Inc. | New | 0.41% | +0.41 |
| CVLT Commvault Systems Inc. | New | 0.40% | +0.40 |
| DLTR Dollar Tree Inc. | Add +1360.1% | 0.42% | +0.39 |
| CRS Carpenter Technology | New | 0.38% | +0.38 |
| BLDR Builders Firstsource Inc. | New | 0.37% | +0.37 |
| XLB SS Materials Select Sector | New | 0.37% | +0.37 |
| COR Cencora Inc. | New | 0.37% | +0.37 |
| IGV iShares Expanded Tech-Softwa | Add +193.7% | 0.58% | +0.36 |
| EHC Encompass Health Corp. | New | 0.35% | +0.35 |
| XLP SS Consumer Staples Sel Sect | New | 0.34% | +0.34 |
| BRO Brown & Brown Inc. | Add +294.0% | 0.50% | +0.33 |
| TSLX Sixth Street Specialty Lendi | New | 0.33% | +0.33 |
| CVGW Calavo Growers Inc. | New | 0.32% | +0.32 |
| KHC The Kraft Heinz Co. | New | 0.32% | +0.32 |
| ONTO Onto Innovation Inc. | Add +1138.1% | 0.35% | +0.32 |
| AAPL Apple Inc. | New | 0.31% | +0.31 |
| HUBB Hubbell Inc. | Add +109.3% | 0.66% | +0.31 |
| XBI SS SPDR S&P Biotech ETF | Add +45.2% | 0.93% | +0.31 |
| CSX CSX Corp. | New | 0.29% | +0.29 |
| AMBA Ambarella Inc. | Add +191.0% | 0.43% | +0.29 |
| BRBR Bellring Brands Inc. | Add +2278.2% | 0.31% | +0.29 |
| ADP Automatic Data Processing | New | 0.29% | +0.29 |
| ENSG The Ensign Group Inc. | New | 0.29% | +0.29 |
| APO Apollo Global Management Inc. | New | 0.28% | +0.28 |
All Filings
| Quarter | Positions | 13F Reported Value | Top Holdings |
|---|---|---|---|
| Q2 2026 | 818 | $1.1B | VOO, VTRS, INTC, HPE, RYTM |
| Q1 2026 | 641 | $1.4B | VOO, TECH, EQIX, AVGO, SMG |
| Q4 2025 | 556 | $1.3B | VOO, TECH, SITE, APO, CRM |
| Q3 2025 | 584 | $1.3B | IWM, SPY, IWN, XRT, XLF |
| Q2 2025 | 587 | $1.1B | IWM, IWN, XLF, XHB, XRT |
| Q1 2025 | 488 | $812.9M | IWN, XLF, AWK, IEX, BC |
| Q4 2024 | 481 | $805.0M | IWM, IWN, AWK, IEX, COF |
| Q3 2024 | 456 | $955.2M | IWN, MSFT, AXTA, UNH, V |
| Q2 2024 | 457 | $1.0B | IWN, BAC, TSM, AMT, V |
| Q1 2024 | 563 | $795.8M | IWM, SPY, HON, TSM, XBI |