Yorktown Management & Research Co Inc
In its 13F for Q3 2024 (holdings as of September 30, 2024, filed October 25, 2024), Yorktown Management & Research Co Inc reported 194 stock positions worth $97.6 million. Its top holding was Comfort Systems USA (FIX) at 1.6% of the portfolio, followed by Mueller Industries (MLI, 1.5%) and LPL Financial (LPLA, 1.4%). Compared with Q2 2024, it opened 42 new positions, sold out of 37, added to 17 and reduced 15. The biggest buy was a new position in Aaon (AAON) and the biggest sale Super Micro Computer (SMCI, shares −52%).
- Most Recent 13F
- Q2 2026
- Location
- Forest, VA
- CIK
- 0001313559
- Portfolio Value
- $97.6M (Q3 2024)
- SEC Filing
- 0000950123-24-009915 ↗ filed Oct 25, 2024
Holdings Value
Holdings 194 stocks · $97.6M
| FIX Comfort Systems USA Inc. | 1.56% | 3,900 | $1.5M | No change |
| MLI Mueller Industries Inc. | 1.48% | 19,490 | $1.4M | Reduce -20.4% |
| LPLA LPL Financial Holdings Inc. | 1.36% | 5,690 | $1.3M | No change |
| EXP Eagle Materials Inc. | 1.30% | 4,415 | $1.3M | No change |
| IESC Ies Holdings Inc. filed as IES HLDGS INC | 1.30% | 6,340 | $1.3M | Add +17.4% |
| AXON Axon Enterprise Inc. | 1.08% | 2,650 | $1.1M | Add +41.3% |
| TYL Tyler Technologies Inc. | 0.99% | 1,650 | $963K | No change |
| IR Ingersoll-Rand Inc. | 0.98% | 9,700 | $952K | No change |
| HLNE Hamilton Lane Inc. Class A | 0.97% | 5,600 | $943K | No change |
| ANET Arista Networks Inc. | 0.96% | 2,450 | $940K | No change |
| KKR KKR & Co. Inc. | 0.96% | 7,200 | $940K | Reduce -25.8% |
| CYBR Cyberark Software Ltd./Israel | 0.93% | 3,100 | $904K | No change |
| FN Fabrinet | 0.92% | 3,800 | $898K | No change |
| KEX Kirby Corp. | 0.87% | 6,950 | $851K | No change |
| DSGX The Descartes Systems Grp | 0.87% | 8,200 | $844K | No change |
| SPSC SPS Commerce Inc. | 0.86% | 4,330 | $841K | No change |
| SMCI Super Micro Computer Inc. | 0.85% | 1,995 | $831K | Reduce -52.4% |
| UFPI Ufp Industries Inc. | 0.85% | 6,300 | $827K | No change |
| BJ Bj's Wholesale Club Holdings filed as BJS WHSL CLUB HLDGS INC | 0.85% | 10,000 | $825K | No change |
| SAIA Saia Inc. | 0.82% | 1,840 | $805K | No change |
| INSM Insmed Inc. | 0.82% | 10,970 | $801K | No change |
| RJF Raymond James Financial Inc. | 0.81% | 6,450 | $790K | No change |
| FTAI Ftai Aviation Ltd. | 0.79% | 5,800 | $771K | No change |
| WCC Wesco International Inc. | 0.78% | 4,550 | $764K | Add +26.4% |
| GLOB Globant SA | 0.78% | 3,840 | $761K | No change |
| MBC Masterbrand Inc. | 0.77% | 40,650 | $754K | No change |
| RMBS Rambus Inc. | 0.77% | 17,800 | $752K | No change |
| CPRX Catalyst Pharmaceuticals Inc. | 0.76% | 37,550 | $746K | Add +85.4% |
| UFPT Ufp Technologies Inc. | 0.76% | 2,340 | $741K | Add +51.0% |
| ENSG The Ensign Group Inc. | 0.76% | 5,150 | $741K | Add +145.2% |
| ICLR Icon PLC | 0.72% | 2,450 | $704K | No change |
| PCTY Paylocity Holding Corp. | 0.72% | 4,250 | $701K | Add +28.8% |
| KLAC KLA Corp. | 0.71% | 890 | $689K | Reduce -40.7% |
| DHI D.R. Horton Inc. | 0.70% | 3,600 | $687K | No change |
| LOGI Logitech International-Reg | 0.69% | 7,500 | $673K | No change |
| TTEK Tetra Tech Inc. | 0.69% | 14,250 | $672K | Add +103.6% |
| AAON Aaon Inc. | 0.69% | 6,200 | $669K | New |
| LAD Lithia Motors Inc. | 0.68% | 2,100 | $667K | No change |
| IBP Installed Building Products | 0.66% | 2,630 | $648K | No change |
| ARCO Arcos Dorados Holdings Inc. Class A | 0.65% | 73,000 | $637K | No change |
| NOG Northern Oil and Gas Inc. | 0.65% | 17,900 | $634K | No change |
| FELE Franklin Electric Co. Inc. | 0.64% | 6,000 | $629K | No change |
| TTD Trade Desk Inc./the Class A filed as THE TRADE DESK INC | 0.64% | 5,700 | $625K | No change |
| PFGC Performance Food Group Co. | 0.63% | 7,880 | $618K | Add +40.0% |
| HLI Houlihan Lokey Inc. | 0.62% | 3,850 | $608K | No change |
| PR Permian Resources Corp. Class A | 0.62% | 44,700 | $608K | No change |
| USLM United States Lime & Mineral | 0.62% | 6,225 | $608K | Add +50.9% |
| KNSL Kinsale Capital Group Inc. | 0.62% | 1,300 | $605K | No change |
| QLYS Qualys Inc. | 0.62% | 4,700 | $604K | No change |
| EVR Evercore Inc. Class A | 0.62% | 2,375 | $602K | No change |
| MPWR Monolithic Power Systems Inc. | 0.62% | 650 | $601K | No change |
| MEDP Medpace Holdings Inc. | 0.62% | 1,800 | $601K | No change |
| TW Tradeweb Markets Inc. Class A | 0.61% | 4,850 | $600K | No change |
| ASPN Aspen Aerogels Inc. | 0.61% | 21,500 | $595K | New |
| CAMT Camtek Ltd. | 0.61% | 7,400 | $591K | Reduce -24.5% |
| CNM Core & Main Inc. Class A | 0.61% | 13,300 | $591K | Reduce -30.7% |
| MATX Matson Inc. | 0.60% | 4,130 | $589K | Reduce -30.0% |
| PEN Penumbra Inc. | 0.60% | 3,000 | $583K | No change |
| PHM Pultegroup Inc. | 0.59% | 4,000 | $574K | No change |
| DT Dynatrace Inc. | 0.58% | 10,600 | $567K | No change |
| TREX Trex Company Inc. | 0.57% | 8,300 | $553K | No change |
| MOD Modine Manufacturing Co. | 0.56% | 4,150 | $551K | No change |
| RRX Regal Rexnord Corp. | 0.56% | 3,275 | $543K | Add +42.4% |
| HRI Herc Holdings Inc. filed as HERC HLDGS INC | 0.56% | 3,400 | $542K | Reduce -10.5% |
| BLD Topbuild Corp. | 0.54% | 1,300 | $529K | No change |
| PATK Patrick Industries Inc. | 0.54% | 3,700 | $527K | No change |
| SSD Simpson Manufacturing Co. Inc. | 0.54% | 2,750 | $526K | Add +44.7% |
| TMHC Taylor Morrison Home Corp. | 0.53% | 7,400 | $520K | No change |
| BWXT BWX Technologies Inc. | 0.52% | 4,700 | $511K | New |
| SRAD Sportradar Group AG-A | 0.52% | 42,100 | $510K | Add +47.7% |
| PTC PTC Inc. | 0.52% | 2,800 | $506K | No change |
| JKHY Jack Henry & Associates Inc. filed as HENRY JACK & ASSOC INC | 0.52% | 2,850 | $503K | New |
| SYBT Stock Yards Bancorp Inc. | 0.51% | 8,100 | $502K | New |
| JHX James Hardie Ord | 0.51% | 12,300 | $494K | No change |
| ITT Itt Inc. | 0.51% | 3,300 | $493K | New |
| CPRT Copart Inc. | 0.50% | 9,400 | $493K | No change |
| GNRC Generac Holdings Inc. | 0.50% | 3,100 | $493K | No change |
| WMS Advanced Drainage Systems Inc. | 0.50% | 3,100 | $487K | No change |
| PHIN Phinia Inc. | 0.49% | 10,470 | $482K | No change |
| SFM Sprouts Farmers Market Inc. | 0.49% | 4,350 | $480K | New |
| CSW CSW Industrials Inc. | 0.49% | 1,300 | $476K | No change |
| VC Visteon Corp. | 0.49% | 5,000 | $476K | New |
| WWD Woodward Inc. | 0.48% | 2,750 | $472K | New |
| DKS Dick's Sporting Goods Inc. | 0.48% | 2,240 | $467K | Reduce -30.0% |
| THC Tenet Healthcare Corp. | 0.48% | 2,800 | $465K | New |
| EXLS Exlservice Holdings Inc. | 0.47% | 12,100 | $462K | No change |
| RBC RBC Bearings Inc. | 0.47% | 1,540 | $461K | Add +54.0% |
| DDOG Datadog Inc. Class A | 0.47% | 4,000 | $460K | New |
| CW Curtiss-Wright Corp. | 0.47% | 1,400 | $460K | New |
| SF Stifel Financial Corp. | 0.47% | 4,900 | $460K | No change |
| MIDD Middleby Corp. | 0.47% | 3,300 | $459K | New |
| WLK Westlake Corp. | 0.47% | 3,050 | $458K | No change |
| GMED Globus Medical Inc. Class A | 0.47% | 6,400 | $458K | No change |
| PACS Pacs Group Inc. | 0.47% | 11,400 | $456K | Add +10.7% |
| FRO Frontline PLC | 0.46% | 19,850 | $454K | No change |
| FSS Federal Signal Corp. | 0.46% | 4,850 | $453K | New |
| GSHD Goosehead Insurance Inc. Class A | 0.46% | 5,050 | $451K | No change |
| CASY Casey's General Stores Inc. | 0.46% | 1,200 | $451K | No change |
| STLD Steel Dynamics Inc. | 0.46% | 3,550 | $448K | No change |
| CBRE CBRE Group Inc. Class A | 0.45% | 3,500 | $436K | Reduce -47.8% |
Portfolio Sells Q2 2024 → Q3 2024
| SMCI Super Micro Computer Inc. | Reduce -52.4% | 0.85% | −2.84 |
| VRT Vertiv Holdings Co. Class A | Sold out | 0.00% | −0.72 |
| CAMT Camtek Ltd. | Reduce -24.5% | 0.61% | −0.71 |
| MTDR Matador Resources Co. | Sold out | 0.00% | −0.68 |
| AMKR Amkor Technology Inc. | Reduce -61.2% | 0.26% | −0.66 |
| CRUS Cirrus Logic Inc. | Sold out | 0.00% | −0.64 |
| KLAC KLA Corp. | Reduce -40.7% | 0.71% | −0.62 |
| ENTG Entegris Inc. | Sold out | 0.00% | −0.57 |
| ATKR Atkore Inc. | Sold out | 0.00% | −0.55 |
| CDW CDW Corp. | Sold out | 0.00% | −0.53 |
| CMC Commercial Metals Co. | Sold out | 0.00% | −0.51 |
| HCC Warrior Met Coal Inc. | Sold out | 0.00% | −0.51 |
| ASX Ase Technology Holding -ADR | Sold out | 0.00% | −0.49 |
| GBX Greenbrier Companies Inc. | Sold out | 0.00% | −0.46 |
| CG The Carlyle Group Inc. | Sold out | 0.00% | −0.46 |
| ONTO Onto Innovation Inc. | Reduce -53.7% | 0.31% | −0.43 |
| WIRE Encore Wire Corp. | Sold out | 0.00% | −0.41 |
| CNM Core & Main Inc. Class A | Reduce -30.7% | 0.61% | −0.40 |
| STM Stmicroelectronics NV-NY SHS | Sold out | 0.00% | −0.40 |
| NICE Nice Ltd. - Spon ADR | Sold out | 0.00% | −0.39 |
| KLIC Kulicke & Soffa Industries | Sold out | 0.00% | −0.39 |
| SMPL The Simply Good Foods Co. | Sold out | 0.00% | −0.38 |
| AMK Assetmark Financial Holdings | Sold out | 0.00% | −0.38 |
| CE Celanese Corp. | Sold out | 0.00% | −0.36 |
| VTS Vitesse Energy Inc. | Sold out | 0.00% | −0.36 |
| BCC Boise Cascade Co. | Sold out | 0.00% | −0.36 |
| DINO HF Sinclair Corp. | Sold out | 0.00% | −0.35 |
| INSW International Seaways Inc. | Sold out | 0.00% | −0.35 |
| CUBE Cubesmart | Sold out | 0.00% | −0.34 |
| CF CF Industries Holdings Inc. | Sold out | 0.00% | −0.34 |
| CIVI Civitas Resources Inc. | Sold out | 0.00% | −0.34 |
| FOUR SHIFT4 Payments Inc. Class A | Sold out | 0.00% | −0.34 |
| THO Thor Industries Inc. | Sold out | 0.00% | −0.33 |
| CPA Copa Holdings SA Class A | Sold out | 0.00% | −0.32 |
| TTC Toro Co. | Sold out | 0.00% | −0.32 |
| IIIV I3 Verticals Inc. Class A | Sold out | 0.00% | −0.32 |
| BYD Boyd Gaming Corp. | Sold out | 0.00% | −0.31 |
| APA Apa Corp. | Sold out | 0.00% | −0.31 |
| ODD Oddity Tech Ltd. Class A | Sold out | 0.00% | −0.30 |
| SLCA US Silica Holdings Inc. | Sold out | 0.00% | −0.30 |
| FIVE Five Below | Sold out | 0.00% | −0.28 |
| DKS Dick's Sporting Goods Inc. | Reduce -30.0% | 0.48% | −0.26 |
| XP XP Inc. Class A | Sold out | 0.00% | −0.24 |
| MATX Matson Inc. | Reduce -30.0% | 0.60% | −0.23 |
| CBRE CBRE Group Inc. Class A | Reduce -47.8% | 0.45% | −0.20 |
| DLO Dlocal Ltd. | Reduce -32.3% | 0.34% | −0.19 |
| JBI Janus International Group Inc. | Sold out | 0.00% | −0.16 |
| PAYC Paycom Software Inc. | Reduce -36.4% | 0.36% | −0.15 |
| DGII Digi International Inc. | Reduce -35.7% | 0.39% | −0.14 |
| KKR KKR & Co. Inc. | Reduce -25.8% | 0.96% | −0.13 |
Portfolio Buys Q2 2024 → Q3 2024
| AAON Aaon Inc. | New | 0.69% | +0.69 |
| ASPN Aspen Aerogels Inc. | New | 0.61% | +0.61 |
| BWXT BWX Technologies Inc. | New | 0.52% | +0.52 |
| JKHY Jack Henry & Associates Inc. | New | 0.52% | +0.52 |
| SYBT Stock Yards Bancorp Inc. | New | 0.51% | +0.51 |
| ITT Itt Inc. | New | 0.51% | +0.51 |
| AXON Axon Enterprise Inc. | Add +41.3% | 1.08% | +0.49 |
| SFM Sprouts Farmers Market Inc. | New | 0.49% | +0.49 |
| IESC Ies Holdings Inc. | Add +17.4% | 1.30% | +0.49 |
| VC Visteon Corp. | New | 0.49% | +0.49 |
| WWD Woodward Inc. | New | 0.48% | +0.48 |
| ENSG The Ensign Group Inc. | Add +145.2% | 0.76% | +0.48 |
| THC Tenet Healthcare Corp. | New | 0.48% | +0.48 |
| DDOG Datadog Inc. Class A | New | 0.47% | +0.47 |
| CW Curtiss-Wright Corp. | New | 0.47% | +0.47 |
| MIDD Middleby Corp. | New | 0.47% | +0.47 |
| FSS Federal Signal Corp. | New | 0.46% | +0.46 |
| AFYA Afya Ltd. Class A | New | 0.45% | +0.45 |
| SPXC SPX Technologies Inc. | New | 0.44% | +0.44 |
| CPRX Catalyst Pharmaceuticals Inc. | Add +85.4% | 0.76% | +0.43 |
| LTH Life Time Group Holdings Inc. | New | 0.42% | +0.42 |
| DUOL Duolingo | New | 0.40% | +0.40 |
| SN Sharkninja Inc. | New | 0.39% | +0.39 |
| TTEK Tetra Tech Inc. | Add +103.6% | 0.69% | +0.38 |
| FLR Fluor Corp. | New | 0.37% | +0.37 |
| HASI Ha Sustainable Infrastructur | New | 0.36% | +0.36 |
| DOCN Digitalocean Holdings Inc. | New | 0.35% | +0.35 |
| STAA Staar Surgical Co. | New | 0.35% | +0.35 |
| APG Api Group Corp. | New | 0.34% | +0.34 |
| IQV Iqvia Holdings Inc. | New | 0.34% | +0.34 |
| NBIX Neurocrine Biosciences Inc. | New | 0.34% | +0.34 |
| OWL Blue Owl Capital Inc. | New | 0.34% | +0.34 |
| HAE Haemonetics Corp. | New | 0.33% | +0.33 |
| ITRI Itron Inc. | New | 0.33% | +0.33 |
| STVN Stevanato Group SPA | New | 0.33% | +0.33 |
| STE Steris PLC | New | 0.32% | +0.32 |
| DOCS Doximity Inc. Class A | New | 0.32% | +0.32 |
| UFPT Ufp Technologies Inc. | Add +51.0% | 0.76% | +0.32 |
| BRKR Bruker Corp. | New | 0.32% | +0.32 |
| BSY Bentley Systems Inc. Class B | New | 0.32% | +0.32 |
| APTV Aptiv Irish Holdings Ltd. | New | 0.32% | +0.32 |
| USLM United States Lime & Mineral | Add +50.9% | 0.62% | +0.30 |
| RDNT Radnet Inc. | New | 0.28% | +0.28 |
| LNTH Lantheus Holdings Inc. | New | 0.28% | +0.28 |
| ALGM Allegro Microsystems Inc. | New | 0.27% | +0.27 |
| PCTY Paylocity Holding Corp. | Add +28.8% | 0.72% | +0.25 |
| PFGC Performance Food Group Co. | Add +40.0% | 0.63% | +0.23 |
| RRX Regal Rexnord Corp. | Add +42.4% | 0.56% | +0.22 |
| WNS WNS Holdings Ltd. | New | 0.21% | +0.21 |
| SSD Simpson Manufacturing Co. Inc. | Add +44.7% | 0.54% | +0.19 |
All Filings
| Quarter | Positions | 13F Reported Value | Top Holdings |
|---|---|---|---|
| Q2 2026 | 249 | $163.3M | FIX, IESC, KLAC, ICVT, CWB |
| Q1 2026 | 214 | $119.5M | FIX, IESC, ICVT, CWB, FN |
| Q4 2025 | 219 | $125.1M | FIX, ICVT, IESC, CWB, VWOB |
| Q3 2025 | 206 | $125.4M | ICVT, CWB, FIX, IESC, PFF |
| Q2 2025 | 208 | $104.8M | AXON, LPLA, IESC, FIX, CYBR |
| Q1 2025 | 206 | $92.0M | LPLA, AXON, CYBR, FIX, MLI |
| Q4 2024 | 204 | $104.0M | LPLA, FIX, AXON, MLI, IESC |
| Q3 2024 | 194 | $97.6M | FIX, MLI, LPLA, EXP, IESC |
| Q2 2024 | 189 | $93.1M | SMCI, LPLA, MLI, KLAC, CAMT |
| Q1 2024 | 217 | $105.1M | SMCI, MLI, LPLA, RMBS, SAIA |