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

0$50.0M$100.0M$150.0M$200.0M Q1 2024: $105.1M Q1 2024 Q2 2024: $93.1M Q2 2024 Q3 2024: $97.6M $97.6M Q3 2024 Q4 2024: $104.0M Q4 2024 Q1 2025: $92.0M Q1 2025 Q2 2025: $104.8M Q2 2025 Q3 2025: $125.4M Q3 2025 Q4 2025: $125.1M Q4 2025 Q1 2026: $119.5M Q1 2026 Q2 2026: $163.3M Q2 2026

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%
AFYA Afya Ltd. Class A 0.45% 25,500 $435K New
PAM Pampa Energia SA-Spon ADR 0.44% 7,200 $432K No change
SPXC SPX Technologies Inc. 0.44% 2,700 $431K New
KFY Korn Ferry 0.44% 5,700 $429K No change
LSTR Landstar System Inc. 0.44% 2,250 $425K No change
TPL Texas Pacific Land Corp. 0.44% 480 $425K No change
TSCO Tractor Supply Company 0.43% 1,450 $422K No change
FSV Firstservice Corp. 0.43% 2,300 $420K No change
HOOD Robinhood Markets Inc. Class A 0.43% 17,900 $419K No change
CHDN Churchill Downs Inc. 0.43% 3,100 $419K No change
DORM Dorman Products Inc. 0.43% 3,700 $419K No change
SKY Champion Homes Inc. 0.43% 4,400 $417K No change
PPC Pilgrim's Pride Corp. 0.42% 9,000 $414K No change
NOVT Novanta Inc. 0.42% 2,300 $412K No change
LTH Life Time Group Holdings Inc. 0.42% 16,850 $411K New
AVAV Aerovironment Inc. 0.41% 1,994 $400K No change
MBIN Merchants Bancorp 0.41% 8,800 $396K No change
DUOL Duolingo 0.40% 1,400 $395K New
OVV Ovintiv Inc. 0.40% 10,300 $395K No change
TDY Teledyne Technologies Inc. 0.40% 900 $394K No change
ASR Grupo Aeroportuario Sur-ADR 0.40% 1,390 $393K No change
SNEX Stonex Group Inc. 0.40% 4,800 $393K No change
DKNG Draftkings Inc. Class A 0.40% 9,960 $390K No change
FTNT Fortinet Inc. 0.39% 4,950 $384K No change
MKSI MKS Inc. filed as MKS INSTRS INC 0.39% 3,500 $380K No change
SN Sharkninja Inc. 0.39% 3,500 $380K New
DGII Digi International Inc. 0.39% 13,700 $377K Reduce -35.7%
NVMI Nova Ltd. 0.38% 1,800 $375K No change
ROL Rollins Inc. 0.38% 7,300 $369K No change
WFG West Fraser Timber Co. Ltd. 0.37% 3,750 $365K No change
FLR Fluor Corp. 0.37% 7,650 $365K New
WHD Cactus Inc. Class A 0.37% 6,050 $361K No change
BMI Badger Meter Inc. 0.37% 1,650 $360K No change
ELF Elf Beauty Inc. 0.37% 3,300 $360K No change
TS Tenaris SA-ADR 0.37% 11,300 $359K No change
CBT Cabot Corp. 0.37% 3,200 $358K No change
CRL Charles River Laboratories 0.36% 1,800 $355K No change
HASI Ha Sustainable Infrastructur 0.36% 10,200 $352K New
FRHC Freedom Holding Corp. 0.36% 3,700 $351K No change
CLH Clean Harbors Inc. 0.36% 1,450 $350K No change
PAYC Paycom Software Inc. 0.36% 2,100 $350K Reduce -36.4%
GFI Gold Fields Ltd.-Spons ADR 0.36% 22,750 $349K No change
VEEV Veeva Systems Inc. Class A 0.35% 1,650 $346K No change
DOCN Digitalocean Holdings Inc. 0.35% 8,550 $345K New
LSCC Lattice Semiconductor Corp. 0.35% 6,500 $345K No change
CVCO Cavco Industries Inc. 0.35% 800 $343K No change
EXPD Expeditors Intl Wash Inc. 0.35% 2,600 $342K No change
STAA Staar Surgical Co. 0.35% 9,100 $338K New
TXRH Texas Roadhouse Inc. 0.34% 1,900 $336K No change
ROAD Construction Partners Inc. Class A 0.34% 4,800 $335K No change
APG Api Group Corp. 0.34% 10,100 $334K New
DLO Dlocal Ltd. 0.34% 41,500 $332K Reduce -32.3%
IQV Iqvia Holdings Inc. 0.34% 1,400 $332K New
RRC Range Resources Corp. 0.34% 10,700 $329K No change
NBIX Neurocrine Biosciences Inc. 0.34% 2,850 $328K New
OWL Blue Owl Capital Inc. 0.34% 16,900 $327K New
SNX TD Synnex Corp. 0.33% 2,700 $324K No change
HAE Haemonetics Corp. 0.33% 4,000 $322K New
ITRI Itron Inc. 0.33% 3,000 $320K New
STVN Stevanato Group SPA 0.33% 16,000 $320K New
RGEN Repligen Corp. 0.33% 2,150 $320K No change
STE Steris PLC 0.32% 1,300 $315K New
DOCS Doximity Inc. Class A 0.32% 7,200 $314K New
BRKR Bruker Corp. 0.32% 4,500 $311K New
BSY Bentley Systems Inc. Class B 0.32% 6,100 $310K New
AZZ Azz Inc. 0.32% 3,750 $310K No change
APTV Aptiv Irish Holdings Ltd. filed as APTIV PLC 0.32% 4,300 $310K New
BG Bunge Global SA 0.32% 3,200 $309K No change
GPK Graphic Packaging Holding Co. 0.32% 10,450 $309K No change
TX Ternium SA-Sponsored ADR 0.31% 8,275 $305K No change
GRVY Gravity Co. Ltd.-Sponsored ADR 0.31% 5,100 $302K No change
ONTO Onto Innovation Inc. 0.31% 1,450 $301K Reduce -53.7%
CHEF The Chefs' Warehouse Inc. 0.30% 7,050 $296K No change
NVT Nvent Electric PLC 0.30% 4,100 $288K No change
TECH Bio-Techne Corp. 0.29% 3,600 $288K No change
BOOT Boot Barn Holdings Inc. 0.29% 1,700 $284K No change
ACLS Axcelis Technologies Inc. 0.29% 2,700 $283K Add +28.6%
WSC Willscot Holdings Corp. 0.29% 7,500 $282K No change
GMS GMS Inc. 0.29% 3,100 $281K No change
VRRM Verra Mobility Corp. 0.28% 10,000 $278K No change
RDNT Radnet Inc. 0.28% 3,900 $271K New
LNTH Lantheus Holdings Inc. 0.28% 2,450 $269K New
BAM Brookfield Asset Mgmt-A 0.27% 5,637 $267K No change
ALGM Allegro Microsystems Inc. 0.27% 11,300 $263K New
TASK Taskus Inc. Class A 0.26% 19,800 $256K Add +65.0%
AMKR Amkor Technology Inc. 0.26% 8,250 $252K Reduce -61.2%
WFRD Weatherford International PL 0.25% 2,900 $246K No change
DOLE Dole PLC 0.21% 12,600 $205K No change
WNS WNS Holdings Ltd. filed as WNS HLDGS LTD 0.21% 3,800 $200K New
GRAB Grab Holdings Ltd. Class A 0.20% 52,000 $198K No change
TGS Transportador Gas-ADR SP B 0.19% 10,300 $189K New
GTM Zoominfo Technologies Inc. 0.18% 17,300 $179K New
STNE Stoneco Ltd. Class A 0.18% 15,700 $177K No change
ARHS Arhaus Inc. 0.17% 13,750 $169K New

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

QuarterPositions13F Reported ValueTop Holdings
Q2 2026 249$163.3MFIX, IESC, KLAC, ICVT, CWB
Q1 2026 214$119.5MFIX, IESC, ICVT, CWB, FN
Q4 2025 219$125.1MFIX, ICVT, IESC, CWB, VWOB
Q3 2025 206$125.4MICVT, CWB, FIX, IESC, PFF
Q2 2025 208$104.8MAXON, LPLA, IESC, FIX, CYBR
Q1 2025 206$92.0MLPLA, AXON, CYBR, FIX, MLI
Q4 2024 204$104.0MLPLA, FIX, AXON, MLI, IESC
Q3 2024 194$97.6MFIX, MLI, LPLA, EXP, IESC
Q2 2024 189$93.1MSMCI, LPLA, MLI, KLAC, CAMT
Q1 2024 217$105.1MSMCI, MLI, LPLA, RMBS, SAIA