Yorktown Management & Research Co Inc Top Holdings and 13F Report (2026)

About Yorktown Management & Research Co Inc

Investment Activity

Yorktown Management & Research Co Inc has $149.68 million in total holdings as of September 30, 2026.
Yorktown Management & Research Co Inc owns shares of 252 different stocks, but just 155 companies or ETFs make up 80% of its holdings.
Approximately 9.84% of the portfolio was purchased this quarter.
About 7.12% of the portfolio was sold this quarter.
This quarter, Yorktown Management & Research Co Inc has purchased 249 new stocks and bought additional shares in 9 stocks.
Yorktown Management & Research Co Inc sold shares of 12 stocks and completely divested from 22 stocks this quarter.

Largest Holdings

Comfort Systems USA: $4,896,106
IES: $3,538,302
Guardant Health: $2,229,500
Arista Networks, Inc.: $1,995,182
KLA: $1,734,877

Largest New Holdings this Quarter

64073B103 - Neptune Insurance Holdings, Inc.: $720,673 Holding
115236101 - Brown & Brown: $593,775 Holding
192422103 - Cognex: $509,460 Holding
946784105 - Waystar Holding Corporation: $508,067 Holding
03957W106 - Archrock: $451,321 Holding

Largest Purchases this Quarter

IES: 5,510 shares (about $1.77M)
Neptune Insurance Holdings, Inc.: 26,350 shares (about $720.67K)
Brown & Brown: 9,750 shares (about $593.78K)
Cognex: 8,400 shares (about $509.46K)
StoneX Group: 7,875 shares (about $509.04K)

Largest Sales this Quarter

iShares Convertible Bond ETF: 5,000 shares (about $564.68K)
SPDR Bloomberg Convertible Securities ETF: 5,000 shares (about $505.90K)
Freedom: 2,350 shares (about $393.16K)
iShares Preferred and Income Securities ETF: 12,000 shares (about $354K)
Vanguard Emerging Markets Government Bond ETF: 5,000 shares (about $315.65K)

Sector Allocation Over Time

Selling

Neutral

Buying

Latest 13F Holdings and Changes Since Previous Quarterly Filing

Issuer Name	Holdings Value	Approximate Purchase/Sale	Change in Shares	Shares Held	% of Portfolio	Sector
FIX Comfort Systems USA	$4,896,106		0.0%	2,960	3.3%	Industrials
IESC IES	$3,538,302	$1,769,151 ▲	100.0%	11,020	2.4%	Industrials
GH Guardant Health	$2,229,500		0.0%	12,500	1.5%	Healthcare
Arista Networks, Inc.	$1,995,182		0.0%	9,800	1.3%	COM SHS
KLAC KLA	$1,734,877		0.0%	8,900	1.2%	Technology
ICVT iShares Convertible Bond ETF	$1,694,025	$564,675 ▼	-25.0%	15,000	1.1%	ETF
CECO CECO Environmental	$1,692,879	$494,444 ▲	41.3%	24,309	1.1%	Industrials
WCC WESCO International	$1,636,135		0.0%	4,550	1.1%	Industrials
VWOB Vanguard Emerging Markets Government Bond ETF	$1,578,250	$315,650 ▼	-16.7%	25,000	1.1%	ETF
SNEX StoneX Group	$1,527,120	$509,040 ▲	50.0%	23,625	1.0%	Finance
CWB SPDR Bloomberg Convertible Securities ETF	$1,517,700	$505,900 ▼	-25.0%	15,000	1.0%	ETF
LQD iShares iBoxx $ Investment Grade Corporate Bond ETF	$1,430,520	$102,180 ▼	-6.7%	14,000	1.0%	ETF
FN Fabrinet	$1,336,451		0.0%	3,150	0.9%	Technology
SMTC Semtech	$1,221,698		0.0%	6,850	0.8%	Technology
MLI Mueller Industries	$1,157,651	$406,087 ▲	54.0%	19,100	0.8%	Industrials
BE Bloom Energy	$1,149,467		0.0%	4,150	0.8%	Industrials
XMTR Xometry	$1,136,493		0.0%	11,050	0.8%	Industrials
MEDP Medpace	$1,123,524		0.0%	1,800	0.8%	Healthcare
DDOG Datadog	$1,095,400		0.0%	4,000	0.7%	Technology
CAMT Camtek	$1,094,513		0.0%	7,050	0.7%	Technology
LITE Lumentum	$1,092,668		0.0%	1,125	0.7%	Technology
ACMR ACM Research	$1,076,236		0.0%	13,300	0.7%	Technology
IBKR Interactive Brokers Group	$1,059,208		0.0%	12,400	0.7%	Finance
FCFS FirstCash	$1,045,589		0.0%	4,950	0.7%	Finance
DGII Digi International	$1,044,351		0.0%	13,700	0.7%	Technology
RJF Raymond James Financial	$1,019,229		0.0%	6,450	0.7%	Finance
NVMI Nova	$1,016,928	$223,416 ▼	-18.0%	2,640	0.7%	Technology
LFST LifeStance Health Group	$1,005,708		0.0%	83,600	0.7%	Healthcare
TWST Twist Bioscience	$985,524		0.0%	5,100	0.7%	Healthcare
RBC RBC Bearings	$983,483		0.0%	1,970	0.7%	Industrials
RNG RingCentral	$974,835		0.0%	13,050	0.7%	Technology
FTAI Aviation Ltd.	$968,774		0.0%	5,800	0.6%	SHS
AX Axos Financial	$965,256	$445,836 ▲	85.8%	11,150	0.6%	Finance
PEN Penumbra	$955,020		0.0%	3,000	0.6%	Healthcare
U Unity Software	$922,972		0.0%	22,550	0.6%	Technology
INSM Insmed	$904,560		0.0%	7,925	0.6%	Healthcare
WWD Woodward	$903,623		0.0%	2,750	0.6%	Industrials
AXSM Axsome Therapeutics	$894,292		0.0%	4,850	0.6%	Healthcare
Celestica, Inc.	$885,504		0.0%	2,450	0.6%	COM
FTNT Fortinet	$884,862		0.0%	4,950	0.6%	Technology
MPWR Monolithic Power Systems	$875,693		0.0%	650	0.6%	Technology
LPLA LPL Financial	$871,530		0.0%	2,850	0.6%	Finance
HALO Halozyme Therapeutics	$866,640		0.0%	7,850	0.6%	Healthcare
HASI HA Sustainable Infrastructure Capital	$843,561		0.0%	23,550	0.6%	Finance
PANW Palo Alto Networks	$830,378		0.0%	2,090	0.6%	Technology
CUBI Customers Bancorp	$828,800	$469,900 ▲	130.9%	11,200	0.6%	Finance
IBP Installed Building Products	$825,084		0.0%	4,300	0.6%	Consumer Discretionary
GFI Gold Fields	$821,730		0.0%	22,750	0.5%	Materials
IONQ IonQ	$820,182		0.0%	18,700	0.5%	Technology
GRAIL, Inc.	$805,690		0.0%	5,750	0.5%	COM
AXON Axon Enterprise	$792,225		0.0%	1,875	0.5%	Industrials
ENSG The Ensign Group	$791,200		0.0%	4,600	0.5%	Healthcare
CHEF Chefs' Warehouse	$790,799		0.0%	7,050	0.5%	Consumer Staples
MOD Modine Manufacturing	$776,880		0.0%	4,150	0.5%	Industrials
HYG iShares iBoxx $ High Yield Corporate Bond ETF	$772,100		0.0%	10,000	0.5%	ETF
TGTX TG Therapeutics	$764,186		0.0%	13,700	0.5%	Healthcare
CW Curtiss-Wright	$761,348		0.0%	1,400	0.5%	Industrials
CORT Corcept Therapeutics	$748,995		0.0%	6,500	0.5%	Healthcare
APLD Applied Digital	$739,630		0.0%	30,350	0.5%	Technology
CASY Casey's General Stores	$730,152		0.0%	1,200	0.5%	Consumer Staples
UMBF UMB Financial	$728,056	$455,035 ▲	166.7%	5,600	0.5%	Finance
PFGC Performance Food Group	$721,099		0.0%	7,880	0.5%	Consumer Staples
Neptune Insurance Holdings, Inc.	$720,673	$720,673 ▲	New Holding	26,350	0.5%	CL A
AGX Argan	$706,767	$453,540 ▲	179.1%	1,870	0.5%	Industrials
SNX TD SYNNEX	$693,495		0.0%	2,700	0.5%	Technology
Embraer S.A.	$692,944		0.0%	9,200	0.5%	SPONSORED ADS
ITT ITT	$666,006		0.0%	3,300	0.4%	Industrials
KRYS Krystal Biotech	$665,120		0.0%	2,000	0.4%	Healthcare
DNLI Denali Therapeutics	$663,507		0.0%	32,100	0.4%	Healthcare
KKR KKR & Co. Inc.	$657,360		0.0%	7,200	0.4%	Finance
LTH Life Time Group	$656,026		0.0%	16,450	0.4%	Consumer Discretionary
DigitalOcean Holdings, Inc.	$653,611		0.0%	4,900	0.4%	COM
Hinge Health, Inc.	$651,508		0.0%	6,700	0.4%	CL A
PACS Group, Inc.	$648,180		0.0%	15,600	0.4%	COM SHS
Forgent Power Solutions, Inc.	$643,968		0.0%	17,200	0.4%	COM SHS CL A
BWXT BWX Technologies	$643,900		0.0%	4,700	0.4%	Industrials
SN SharkNinja	$630,420		0.0%	3,500	0.4%	Consumer Discretionary
SYBT Stock Yards Bancorp	$624,429		0.0%	8,100	0.4%	Finance
SAIA Saia	$614,082		0.0%	1,840	0.4%	Industrials
LAD Lithia Motors	$612,843		0.0%	2,100	0.4%	Consumer Discretionary
Sunbelt Rentals Holdings, Inc.	$600,322		0.0%	8,200	0.4%	SHS
BRO Brown & Brown	$593,775	$593,775 ▲	New Holding	9,750	0.4%	Finance
PFF iShares Preferred and Income Securities ETF	$590,000	$354,000 ▼	-37.5%	20,000	0.4%	ETF
ESE ESCO Technologies	$589,870		0.0%	2,225	0.4%	Industrials
APG APi Group	$584,790		0.0%	15,150	0.4%	Industrials
CIEN Ciena	$580,503		0.0%	1,650	0.4%	Technology
FELE Franklin Electric	$575,340		0.0%	6,000	0.4%	Industrials
DLO DLocal	$571,040		0.0%	41,500	0.4%	Finance
DAVE Dave	$562,643		0.0%	1,750	0.4%	Finance
PAM Pampa Energia	$559,944		0.0%	7,200	0.4%	Utilities
Hamilton Insurance Group Ltd.	$558,376		0.0%	16,900	0.4%	CL B
HCI HCI Group	$556,224		0.0%	3,200	0.4%	Finance
CNM Core & Main	$551,684		0.0%	13,300	0.4%	Industrials
BEAM Beam Therapeutics	$551,348		0.0%	22,550	0.4%	Healthcare
RSI Rush Street Interactive	$546,877		0.0%	26,900	0.4%	Consumer Discretionary
TDY Teledyne Technologies	$546,129		0.0%	900	0.4%	Technology
BRKR Bruker	$543,900		0.0%	8,400	0.4%	Healthcare
WAL Western Alliance Bancorporation	$540,720		0.0%	7,200	0.4%	Finance
OSCR Oscar Health	$536,616		0.0%	17,400	0.4%	Healthcare
NBIX Neurocrine Biosciences	$531,900		0.0%	3,750	0.4%	Healthcare

Showing largest 100 holdings. View all holdings.

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Yorktown Management & Research Co Inc Top Holdings and 13F Report (2026)

About Yorktown Management & Research Co Inc

Investment Activity

Largest Holdings

Largest New Holdings this Quarter

Largest Purchases this Quarter

Largest Sales this Quarter

Sector Allocation Over Time

Latest 13F Holdings and Changes Since Previous Quarterly Filing

More Institutional Buying and Selling Information

Best-in-Class Portfolio Monitoring

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Advanced Stock Screeners and Research Tools

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Yorktown Management & Research Co Inc Top Holdings and 13F Report (2026)

About Yorktown Management & Research Co Inc

Investment Activity

Largest Holdings

Largest New Holdings this Quarter

Largest Purchases this Quarter

Largest Sales this Quarter

Sector Allocation Over Time

Map of 500 Largest Holdings ofYorktown Management & Research Co Inc

Latest 13F Holdings and Changes Since Previous Quarterly Filing

More Institutional Buying and Selling Information

MarketBeat All Access Features

Best-in-Class Portfolio Monitoring

Stock Ideas and Recommendations

Advanced Stock Screeners and Research Tools