Yorktown Management & Research Co Inc

In its 13F for Q3 2025 (holdings as of September 30, 2025, filed October 29, 2025), Yorktown Management & Research Co Inc reported 206 stock positions worth $125.4 million. Its top holding was iShares Convertible Bond ETF (ICVT) at 4.0% of the portfolio, followed by SS SPDR BB Conv Sec ETF (CWB, 3.6%) and Comfort Systems USA (FIX, 2.3%). Compared with Q2 2025, it opened 36 new positions, sold out of 38, added to 3 and reduced 4. The biggest buy was a new position in iShares Convertible Bond ETF (ICVT) and the biggest sale an exit from Duolingo (DUOL).

Most Recent 13F
Q2 2026
Location
Forest, VA
CIK
0001313559
Portfolio Value
$125.4M (Q3 2025)
SEC Filing
0001193125-25-255399 ↗ filed Oct 29, 2025

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 Q3 2024 Q4 2024: $104.0M Q4 2024 Q1 2025: $92.0M Q1 2025 Q2 2025: $104.8M Q2 2025 Q3 2025: $125.4M $125.4M Q3 2025 Q4 2025: $125.1M Q4 2025 Q1 2026: $119.5M Q1 2026 Q2 2026: $163.3M Q2 2026

Holdings 206 stocks · $125.4M
ICVT iShares Convertible Bond ETF 3.99% 50,000 $5.0M New
CWB SS SPDR BB Conv Sec ETF 3.61% 50,000 $4.5M New
FIX Comfort Systems USA Inc. 2.30% 3,500 $2.9M No change
IESC Ies Holdings Inc. filed as IES HLDGS INC 2.01% 6,340 $2.5M No change
PFF iShares Preferred & Income S 1.64% 65,000 $2.1M New
CYBR Cyberark Software Ltd./Israel 1.56% 4,050 $2.0M No change
AXON Axon Enterprise Inc. 1.52% 2,650 $1.9M No change
HOOD Robinhood Markets Inc. Class A 1.40% 12,300 $1.8M Reduce -22.6%
LPLA LPL Financial Holdings Inc. 1.40% 5,290 $1.8M No change
VWOB Vanguard Emerg MKTS Gov BND 1.33% 25,000 $1.7M New
MLI Mueller Industries Inc. 1.16% 14,450 $1.5M No change
ANET Arista Networks Inc. 1.14% 9,800 $1.4M No change
FN Fabrinet 1.10% 3,800 $1.4M No change
INSM Insmed Inc. 1.10% 9,600 $1.4M Add +64.1%
SRAD Sportradar Group AG-A 0.90% 42,100 $1.1M No change
RJF Raymond James Financial Inc. 0.89% 6,450 $1.1M No change
SNEX Stonex Group Inc. 0.84% 10,500 $1.1M No change
DSGX The Descartes Systems Grp 0.81% 10,800 $1.0M No change
FTAI Ftai Aviation Ltd. 0.77% 5,800 $968K No change
WCC Wesco International Inc. 0.77% 4,550 $962K No change
KLAC KLA Corp. 0.77% 890 $960K No change
LIF LIFE360 Inc. 0.76% 9,000 $957K No change
SMCI Super Micro Computer Inc. 0.76% 19,950 $956K No change
GFI Gold Fields Ltd.-Spons ADR 0.76% 22,750 $955K No change
HWKN Hawkins Inc. 0.75% 5,150 $941K No change
KKR KKR & Co. Inc. 0.75% 7,200 $936K No change
MEDP Medpace Holdings Inc. 0.74% 1,800 $925K No change
BWXT BWX Technologies Inc. 0.69% 4,700 $867K No change
TYL Tyler Technologies Inc. 0.69% 1,650 $863K No change
DORM Dorman Products Inc. 0.68% 5,500 $857K No change
IBKR Interactive Brokers Gro Class A 0.68% 12,400 $853K No change
SEMR Semrush Holdings Inc. Class A 0.68% 120,000 $850K Add +94.8%
PFGC Performance Food Group Co. 0.65% 7,880 $820K No change
USLM United States Lime & Mineral 0.65% 6,225 $819K No change
IR Ingersoll-Rand Inc. 0.64% 9,700 $801K No change
EXLS Exlservice Holdings Inc. 0.64% 18,100 $797K No change
HLI Houlihan Lokey Inc. 0.63% 3,850 $790K No change
FCFS Firstcash Holdings Inc. 0.63% 4,950 $784K Add +86.8%
GENI Genius Sports Ltd. 0.62% 62,700 $776K No change
PAM Pampa Energia SA-Spon ADR 0.62% 12,900 $775K No change
RBC RBC Bearings Inc. 0.61% 1,970 $769K No change
CW Curtiss-Wright Corp. 0.61% 1,400 $760K No change
PEN Penumbra Inc. 0.61% 3,000 $760K No change
HLNE Hamilton Lane Inc. Class A 0.60% 5,600 $755K No change
RMBS Rambus Inc. 0.58% 7,000 $729K No change
CNM Core & Main Inc. Class A 0.57% 13,300 $716K No change
IBP Installed Building Products 0.57% 2,900 $715K No change
APLD Applied Digital Corp. 0.56% 30,350 $696K New
WWD Woodward Inc. 0.55% 2,750 $695K No change
CASY Casey's General Stores Inc. 0.54% 1,200 $678K No change
LAD Lithia Motors Inc. 0.53% 2,100 $664K No change
HYG Ishr Ibx Usd Hiyld CB ETF-Ui 0.52% 8,000 $650K New
FRHC Freedom Holding Corp. 0.51% 3,700 $637K No change
METC Ramaco Resources Inc. Class A 0.51% 19,150 $636K New
AVAV Aerovironment Inc. 0.50% 1,994 $628K No change
QLYS Qualys Inc. 0.50% 4,700 $622K No change
ROAD Construction Partners Inc. Class A 0.49% 4,800 $610K No change
RDDT Reddit Inc. Class A 0.49% 2,650 $609K New
FUTU Futu Holdings Ltd.-ADR filed as FUTU HLDGS LTD 0.49% 3,500 $609K No change
ENSG The Ensign Group Inc. 0.48% 3,500 $605K No change
CLS Celestica Inc. 0.48% 2,450 $604K New
XMTR Xometry Inc. Class A 0.48% 11,050 $602K New
MPWR Monolithic Power Systems Inc. 0.48% 650 $598K No change
DLO Dlocal Ltd. 0.47% 41,500 $593K No change
MOD Modine Manufacturing Co. 0.47% 4,150 $590K No change
ITT Itt Inc. 0.47% 3,300 $590K No change
NVMI Nova Ltd. 0.46% 1,800 $575K No change
FELE Franklin Electric Co. Inc. 0.46% 6,000 $571K No change
DDOG Datadog Inc. Class A 0.45% 4,000 $570K No change
PTC PTC Inc. 0.45% 2,800 $568K No change
SYBT Stock Yards Bancorp Inc. 0.45% 8,100 $567K No change
PRIM Primoris Services Corp. 0.45% 4,100 $563K No change
PAYO Payoneer Global Inc. 0.45% 92,700 $561K No change
SF Stifel Financial Corp. 0.44% 4,900 $556K No change
KNSL Kinsale Capital Group Inc. 0.44% 1,300 $553K No change
CALX Calix Inc. 0.44% 9,000 $552K No change
RSI Rush Street Interactive Inc. 0.44% 26,900 $551K New
SAIA Saia Inc. 0.44% 1,840 $551K No change
CAMT Camtek Ltd. 0.44% 5,200 $546K No change
BROS Dutch Bros Inc. Class A 0.43% 10,300 $539K No change
PHM Pultegroup Inc. 0.42% 4,000 $529K No change
TDY Teledyne Technologies Inc. 0.42% 900 $527K No change
DOCS Doximity Inc. Class A 0.42% 7,200 $527K No change
PCTY Paylocity Holding Corp. 0.42% 3,300 $526K No change
APG Api Group Corp. 0.42% 15,150 $521K No change
ACMR Acm Research Inc. Class A 0.41% 13,300 $520K No change
DT Dynatrace Inc. 0.41% 10,600 $514K No change
BLD Topbuild Corp. 0.41% 1,300 $508K No change
SPXC SPX Technologies Inc. 0.40% 2,700 $504K No change
IDCC Interdigital Inc. 0.40% 1,450 $501K No change
DGII Digi International Inc. 0.40% 13,700 $500K No change
CECO Ceco Environmental Corp. 0.40% 9,700 $497K New
PAX Patria Investments Ltd. Class A 0.40% 34,000 $496K No change
VEEV Veeva Systems Inc. Class A 0.39% 1,650 $492K No change
SFM Sprouts Farmers Market Inc. 0.38% 4,350 $473K No change
MTZ Mastec Inc. 0.37% 2,200 $468K New
CVCO Cavco Industries Inc. 0.37% 800 $465K No change
ZWS Zurn Elkay Water Solutions C 0.37% 9,750 $459K No change
SPSC SPS Commerce Inc. 0.36% 4,330 $451K No change
ASR Grupo Aeroportuario Sur-ADR 0.36% 1,390 $449K No change

Show all 206 holdings

Portfolio Sells Q2 2025 → Q3 2025
DUOL Duolingo Sold out 0.00% −0.77
LOGI Logitech International-Reg Sold out 0.00% −0.65
MRX Marex UK Holdings Ltd. Sold out 0.00% −0.51
PATK Patrick Industries Inc. Sold out 0.00% −0.49
OSIS Osi Systems Inc. Sold out 0.00% −0.49
MIDD Middleby Corp. Sold out 0.00% −0.45
TMHC Taylor Morrison Home Corp. Sold out 0.00% −0.43
TREX Trex Company Inc. Sold out 0.00% −0.43
IHG Intercontinental Hotels-ADR Sold out 0.00% −0.41
TTD Trade Desk Inc./the Class A Sold out 0.00% −0.39
PPC Pilgrim's Pride Corp. Sold out 0.00% −0.39
WTM White Mountains Insurance GP Sold out 0.00% −0.38
GGAL Grupo Financiero Galicia-ADR Sold out 0.00% −0.36
BMA Banco Macro SA-ADR Sold out 0.00% −0.34
INGR Ingredion Inc. Sold out 0.00% −0.33
BL Blackline Inc. Reduce -47.1% 0.23% −0.33
GMS GMS Inc. Sold out 0.00% −0.32
CWAN Clearwater Analytics HDS-A Sold out 0.00% −0.32
AAON Aaon Inc. Sold out 0.00% −0.32
JHX James Hardie Ord Sold out 0.00% −0.32
AFYA Afya Ltd. Class A Sold out 0.00% −0.31
AGM Federal Agric MTG Corp. Class C Sold out 0.00% −0.30
ERIE Erie Indemnity Company Class A Sold out 0.00% −0.29
EXPD Expeditors Intl Wash Inc. Sold out 0.00% −0.28
CSW CSW Industrials Inc. Reduce -33.3% 0.25% −0.28
PNTG The Pennant Group Inc. Sold out 0.00% −0.28
ITGR Integer Holdings Corp. Sold out 0.00% −0.28
IPAR Interparfums Inc. Sold out 0.00% −0.28
BJ Bj's Wholesale Club Holdings Reduce -45.6% 0.18% −0.27
PNFP Pinnacle Financial Partners Sold out 0.00% −0.26
CRL Charles River Laboratories Sold out 0.00% −0.26
GDYN Grid Dynamics Holdings Inc. Sold out 0.00% −0.26
WHD Cactus Inc. Class A Sold out 0.00% −0.24
PRMB Primo Brands Corp. Sold out 0.00% −0.23
THC Tenet Healthcare Corp. Sold out 0.00% −0.22
HAE Haemonetics Corp. Sold out 0.00% −0.22
GIII G-III Apparel Group Ltd. Sold out 0.00% −0.21
GFF Griffon Corp. Sold out 0.00% −0.21
TGLS Tecnoglass Holdings Inc. Sold out 0.00% −0.21
OKE Oneok Inc. Sold out 0.00% −0.21
DOLE Dole PLC Sold out 0.00% −0.17
HOOD Robinhood Markets Inc. Class A Reduce -22.6% 1.40% −0.02

Portfolio Buys Q2 2025 → Q3 2025
ICVT iShares Convertible Bond ETF New 3.99% +3.99
CWB SS SPDR BB Conv Sec ETF New 3.61% +3.61
PFF iShares Preferred & Income S New 1.64% +1.64
VWOB Vanguard Emerg MKTS Gov BND New 1.33% +1.33
APLD Applied Digital Corp. New 0.56% +0.56
INSM Insmed Inc. Add +64.1% 1.10% +0.54
HYG Ishr Ibx Usd Hiyld CB ETF-Ui New 0.52% +0.52
METC Ramaco Resources Inc. Class A New 0.51% +0.51
RDDT Reddit Inc. Class A New 0.49% +0.49
CLS Celestica Inc. New 0.48% +0.48
XMTR Xometry Inc. Class A New 0.48% +0.48
RSI Rush Street Interactive Inc. New 0.44% +0.44
CECO Ceco Environmental Corp. New 0.40% +0.40
MTZ Mastec Inc. New 0.37% +0.37
CCOI Cogent Communications Holdin New 0.36% +0.36
IREN Iren Ltd. New 0.35% +0.35
NSSC Napco Security Technologies New 0.34% +0.34
RDNT Radnet Inc. New 0.33% +0.33
UPWK Upwork Inc. New 0.32% +0.32
TMDX Transmedics Group Inc. New 0.31% +0.31
PAGS Pagseguro Digital Ltd. Class A New 0.30% +0.30
OKTA Okta Inc. New 0.30% +0.30
KSPI JSC Kaspi.kz ADR New 0.30% +0.30
FCFS Firstcash Holdings Inc. Add +86.8% 0.63% +0.28
HASI Ha Sustainable Infrastructur New 0.28% +0.28
KRYS Krystal Biotech Inc. New 0.28% +0.28
CUBI Customers Bancorp Inc. New 0.25% +0.25
NBIX Neurocrine Biosciences Inc. New 0.25% +0.25
GTLS Chart Industries Inc. New 0.25% +0.25
CELH Celsius Holdings Inc. New 0.22% +0.22
SMBK Smartfinancial Inc. New 0.19% +0.19
VC Visteon Corp. New 0.19% +0.19
VEL Velocity Financial Inc. New 0.19% +0.19
LTH Life Time Group Holdings Inc. New 0.19% +0.19
RL Ralph Lauren Corp. New 0.17% +0.17
ALHC Alignment Healthcare Inc. New 0.17% +0.17
NCNO Ncino Inc. New 0.17% +0.17
TILE Interface Inc. New 0.17% +0.17
SEMR Semrush Holdings Inc. Class A Add +94.8% 0.68% +0.15

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