Round Rock Advisors LLC

CIK

1846991

Location

WILTON, CT

Portfolio Value

Small $280,956,621

Diversification

Diversified

Filing Date

Global Rank

#3,202 / 8,232 ▲ 106

Top Industry

Consumer Electronics 7.9%

3Y Alpha vs SPY

-1.8%

Period ended 2 months ago

Filed May 15, 2026 · 30d

22 quarters · since Dec 2020

Clone Performance

Jun 2023–Jun 2026 · vs SPY

Hypothetical growth of cloning every reported 13F position and rebalancing on each filing, indexed to the same start.

Cloned portfolio

+68.6%

SPY

+76.3%

Annualised alpha

-1.8%

Max drawdown

−18.7%

Estimate. 13F holdings are quarter-lagged and long-only, so the clone rebalances about 45 days after each period end — when the filing becomes public — and excludes options and short positions. Past performance does not predict future results.

Portfolio Concentration

227 positions · as of Mar 31, 2026 · Δ vs Dec 31, 2025

Top Position

16.4%

−0.3 pts

Top 5

31.2%

−2.6 pts

Top 10

38.5%

−2.4 pts

HHI

373

Diversified−23

Portfolio Trend

22 quarters · across all stocks

Sector Breakdown

As of Mar 31, 2026

Sector	% Portfolio	Value	Positions
Technology	22.4%	$62,987,452	41
Unclassified	20.3%	$56,998,441	8
Healthcare	11.9%	$33,481,942	41
Industrials	11.4%	$32,082,000	48
Financial Services	10.2%	$28,744,171	26
Energy	7.2%	$20,266,325	14
Consumer Cyclical	6.6%	$18,558,043	21
Basic Materials	3.6%	$10,122,781	8
Communication Services	2.9%	$8,106,415	8
Consumer Defensive	2.3%	$6,542,533	7
Real Estate	0.6%	$1,696,072	3
Utilities	0.5%	$1,370,446	2

Last Quarter's Activity

Export CSV

Mar 31, 2026 vs Dec 31, 2025

Added To

Positions the filer increased

25 positions

Ticker	Company	Δ Shares	Shares	Value
GETY	Getty Images Holdings, Inc.	+293,829	757,634	$600,803
CPSH	Cps Technologies Corp/De/	+244,197	435,522	$1,628,852
BDTX	Black Diamond Therapeutics, Inc.	+149,803	274,367	$584,401
NEOG	Neogen Corp	+85,161	242,128	$2,249,369
CODA	Coda Octopus Group, Inc.	+67,329	117,366	$1,326,235
PLX	Protalix BioTherapeutics, Inc.	+36,978	192,080	$416,813
PBYI	Puma Biotechnology, Inc.	+23,870	128,912	$823,747
CHCT	Community Healthcare Trust Inc	+21,081	43,918	$697,857
BKSY	BlackSky Technology Inc.	+18,137	54,451	$1,369,987
NBBK	NB Bancorp, Inc.	+14,561	66,467	$1,400,459
EZBC	Franklin Templeton Digital Holdings Trust	+13,463	54,727	$2,144,751
HZO	Marinemax Inc	+10,513	62,509	$1,691,493
LASR	Nlight, Inc.	+9,645	16,339	$931,649
AMSC	American Superconductor Corp /De/	+9,631	20,340	$688,509
VTOL	Bristow Group Inc.	+8,202	39,984	$1,874,849
MYFW	First Western Financial Inc	+6,350	47,431	$1,165,853
OII	Oceaneering International Inc	+5,938	17,312	$614,056
UTI	Universal Technical Institute Inc	+5,857	21,346	$770,590
KO	Coca Cola Co	+3,799	15,022	$1,142,423
TRNS	Transcat Inc	+3,509	19,024	$1,397,312
JOUT	Johnson Outdoors Inc	+3,319	11,985	$557,422
MIAX	Miami International Holdings, Inc.	+1,995	8,983	$349,618
BXC	BlueLinx Holdings Inc.	+1,961	10,017	$542,721
TDOC	Teladoc Health, Inc.	+1,503	233,868	$1,274,580
CFR	Cullen/Frost Bankers, Inc.	+1,219	3,183	$436,325
No positions match the current search.

Trimmed

Positions the filer reduced

25 positions

Ticker	Company	Δ Shares	Shares	Value
KEEL	Keel Infrastructure Corp.	−79,178	248,493	$484,561
LBRT	Liberty Energy Inc.	−29,369	74,844	$2,155,507
PCT	PureCycle Technologies, Inc.	−18,202	10,000	$51,900
LC	LendingClub Corp	−9,950	65,554	$938,733
CECO	Ceco Environmental Corp	−7,029	3,921	$233,613
ENPH	Enphase Energy, Inc.	−5,083	9,245	$349,553
AMZN	Amazon Com Inc	−4,441	34,077	$7,097,216
USLM	United States Lime & Minerals Inc	−3,552	7,335	$958,024
WMT	Walmart Inc.	−3,394	8,228	$1,022,575
SPY	Spdr S&P 500 ETF Trust	−3,324	8,745	$5,687,223
PLPC	Preformed Line Products Co	−3,229	4,576	$1,238,952
FEIM	Frequency Electronics Inc	−2,503	46,092	$2,040,031
CVS	CVS HEALTH Corp	−2,472	12,599	$904,860
SLV	iShares Silver Trust	−2,437	3,616	$246,394
MRVL	Marvell Technology, Inc.	−2,381	2,040	$202,062
IBM	International Business Machines Corp	−2,216	11,207	$2,716,464
ICE	Intercontinental Exchange, Inc.	−2,182	23,854	$3,751,757
AEM	Agnico Eagle Mines Ltd	−2,141	6,659	$1,351,643
KGS	Kodiak Gas Services, Inc.	−2,065	5,711	$333,065
BAC	Bank Of America Corp /De/	−2,042	5,259	$256,376
MMM	3M Co	−2,006	4,841	$703,058
DIS	Walt Disney Co	−2,000	2,983	$287,501
PFE	Pfizer Inc	−1,544	30,216	$848,465
ABBV	AbbVie Inc.	−1,532	18,080	$3,932,219
MYRG	Myr Group Inc.	−1,513	3,483	$983,320
No positions match the current search.

New Positions

Positions the filer opened this quarter

25 positions

Ticker	Company	Shares	Value
SSYS	Stratasys Ltd.	223,922	$1,748,830
LOKV	Live Oak Acquisition Corp. V	136,705	$1,421,732
DCO	Ducommun Inc /De/	6,542	$798,124
LSTR	Landstar System Inc	4,684	$750,892
CDNL	Cardinal Infrastructure Group Inc.	18,897	$749,360
LRCX	Lam Research Corp	3,142	$671,319
GLUE	Monte Rosa Therapeutics, Inc.	37,229	$612,417
LIND	Lindblad Expeditions Holdings, Inc.	32,067	$554,759
WPC	W. P. Carey Inc.	7,634	$518,806
ARQ	Arq, Inc.	190,708	$488,212
CHCI	Comstock Holding Companies, Inc.	25,312	$479,409
FTK	Flotek Industries Inc/Cn/	26,851	$455,661
ABCB	Ameris Bancorp	5,805	$452,731
AMAT	Applied Materials Inc /De	1,291	$441,250
EVLV	Evolv Technologies Holdings, Inc.	70,991	$429,495
BW	Babcock & Wilcox Enterprises, Inc.	28,382	$416,931
GHM	Graham Corp	4,774	$376,764
KLXE	KLX Energy Services Holdings, Inc.	139,614	$362,996
ASML	Asml Holding NV	274	$361,907
CAT	Caterpillar Inc	500	$354,230
FPS	Forgent Power Solutions, Inc.	12,059	$352,966
AMGN	Amgen Inc	975	$343,053
ATEC	Alphatec Holdings, Inc.	29,920	$325,529
KLAC	Kla Corp	218	$320,985
TATT	Tat Technologies Ltd	7,862	$319,433
No positions match the current search.

Sold Out

Positions the filer fully exited

25 positions

Ticker	Company	Shares	Value
LZ	Legalzoom.Com, Inc.	159,579	$1,584,619
TE	T1 Energy Inc.	179,481	$1,198,933
ODC	Oil-Dri Corp of America	21,404	$1,047,511
GENI	Genius Sports Ltd	92,917	$1,023,945
HCI	HCI Group, Inc.	4,849	$929,504
MYE	Myers Industries Inc	40,917	$765,966
CRAI	Cra International, Inc.	3,587	$719,910
EXTR	Extreme Networks Inc	40,803	$679,369
VPG	Vishay Precision Group, Inc.	17,131	$659,543
DGII	Digi International Inc	14,117	$611,124
THRM	Gentherm Inc	15,814	$575,155
PRCH	Porch Group, Inc.	60,603	$553,305
SNBR	Sleep Number Corp	64,187	$543,022
CWAN	Clearwater Analytics Holdings, Inc.	20,262	$488,719
ATEN	A10 Networks, Inc.	27,353	$483,874
APPS	Digital Turbine, Inc.	93,689	$468,445
BKNG	Booking Holdings Inc.	87	$465,913
BLZE	Backblaze, Inc.	91,406	$425,951
CRM	Salesforce, Inc.	1,517	$401,868
PRVA	Privia Health Group, Inc.	16,747	$397,071
FLYW	Flywire Corp	28,003	$396,522
AIOT	Powerfleet, Inc.	72,518	$385,795
CDRE	Cadre Holdings, Inc.	9,369	$382,629
HLI	Houlihan Lokey, Inc.	2,073	$361,095
GPOR	Gulfport Energy Corp	1,656	$344,431
No positions match the current search.

Portfolio Positions

Compact Export CSV View 13F filing

227 positions · $280,956,621 total · as of Mar 31, 2026

All sectors Basic Materials Communication Services Consumer Cyclical Consumer Defensive Energy Financial Services Healthcare Industrials Real Estate Technology Utilities

Showing 1–50 of 227 positions by value · page 1 of 5

Ticker	Company	Type	Shares	Δ Shares	Value (USD)	% Δ Value	% of Portfolio
QQQ	Invesco Qqq Trust, Series 1	Reduced	80,064	-1,038	$46,211,339	−7.2%	16.45%
AAPL	Apple Inc. Technology	Reduced	66,821	-172	$16,958,501	−6.9%	6.04%
MSFT	Microsoft Corp Technology	Reduced	31,839	-61	$11,785,842	−23.6%	4.19%
AMZN	Amazon Com Inc Consumer Cyclical	Reduced	34,077	-4,441	$7,097,216	−20.2%	2.53%
SPY	Spdr S&P 500 ETF Trust	Reduced	8,745	-3,324	$5,687,223	−30.9%	2.02%
XOM	Exxon Mobil Corp Energy	Reduced	31,660	-367	$5,371,435	+39.4%	1.91%
NVDA	Nvidia Corp Technology	Reduced	23,775	-3	$4,146,360	−6.5%	1.48%
ABBV	AbbVie Inc. Healthcare	Reduced	18,080	-1,532	$3,932,219	−12.2%	1.40%
ICE	Intercontinental Exchange, Inc. Financial Services	Reduced	23,854	-2,182	$3,751,757	−11.0%	1.34%
WMB	Williams Companies, Inc. Energy	Held	42,776	0	$3,113,237	+21.1%	1.11%
APD	Air Products & Chemicals, Inc. Basic Materials	Reduced	10,133	-849	$2,943,535	+8.5%	1.05%
CVX	Chevron Corp Energy	Reduced	13,353	-1,042	$2,762,735	+25.9%	0.98%
GOOGL	Alphabet Inc. Communication Services	Reduced	9,558	-581	$2,748,498	−13.4%	0.98%
IBM	International Business Machines Corp Technology	Reduced	11,207	-2,216	$2,716,464	−31.7%	0.97%
CB	Chubb Ltd Financial Services	Reduced	7,921	-820	$2,581,691	−5.4%	0.92%
JNJ	Johnson & Johnson Healthcare	Added	10,461	+832	$2,557,086	+28.3%	0.91%
UNH	Unitedhealth Group Inc Healthcare	Reduced	9,357	-734	$2,531,910	−24.0%	0.90%
COF	Capital One Financial Corp Financial Services	Reduced	13,106	-1,402	$2,390,927	−32.0%	0.85%
NEOG	Neogen Corp Healthcare	Added	242,128	+85,161	$2,249,369	+105.0%	0.80%
LBRT	Liberty Energy Inc. Energy	Reduced	74,844	-29,369	$2,155,507	+12.0%	0.77%
EZBC	Franklin Templeton Digital Holdings Trust	Added	54,727	+13,463	$2,144,751	+2.7%	0.76%
APH	Amphenol Corp /De/ Technology	Added	16,789	+102	$2,121,290	−5.9%	0.76%
FEIM	Frequency Electronics Inc Technology	Reduced	46,092	-2,503	$2,040,031	−22.0%	0.73%
C	Citigroup Inc Financial Services	Added	17,988	+878	$2,040,019	+2.2%	0.73%
HON	Honeywell International Inc Industrials	Reduced	8,972	-910	$2,027,941	+5.2%	0.72%
BRK-B	Berkshire Hathaway Inc Financial Services	Reduced	3,941	-1,003	$1,888,527	−24.0%	0.67%
VTOL	Bristow Group Inc. Energy	Added	39,984	+8,202	$1,874,849	+61.1%	0.67%
PKE	Park Aerospace Corp Industrials	Added	67,808	+228	$1,856,583	+28.7%	0.66%
SSYS	Stratasys Ltd. Technology	NEW	223,922	NEW	$1,748,830	NEW	0.62%
ELV	Elevance Health, Inc. Healthcare	Reduced	5,847	-584	$1,711,709	−24.1%	0.61%
HZO	Marinemax Inc Consumer Cyclical	Added	62,509	+10,513	$1,691,493	+34.3%	0.60%
CPSH	Cps Technologies Corp/De/ Technology	Added	435,522	+244,197	$1,628,852	+175.5%	0.58%
PEP	Pepsico Inc Consumer Defensive	Added	10,093	+60	$1,567,341	+8.8%	0.56%
JPM	Jpmorgan Chase & Co Financial Services	Added	5,250	+149	$1,544,340	−6.0%	0.55%
REX	REX AMERICAN RESOURCES Corp Basic Materials	Added	33,424	+161	$1,523,131	+41.7%	0.54%
PLUS	Eplus Inc Technology	Added	20,197	+98	$1,519,824	−13.8%	0.54%
DIA	Spdr Dow Jones Industrial Average ETF Trust	Reduced	3,188	-77	$1,476,649	−5.9%	0.53%
EPD	Enterprise Products Partners L.P. Energy	Held	38,435	0	$1,454,380	+18.0%	0.52%
LOKV	Live Oak Acquisition Corp. V Financial Services	NEW	136,705	NEW	$1,421,732	NEW	0.51%
IDR	Idaho Strategic Resources, Inc. Basic Materials	Added	43,988	+160	$1,412,894	−20.0%	0.50%
NBBK	NB Bancorp, Inc. Financial Services	Added	66,467	+14,561	$1,400,459	+36.1%	0.50%
TRNS	Transcat Inc Industrials	Added	19,024	+3,509	$1,397,312	+58.8%	0.50%
BKSY	BlackSky Technology Inc. Industrials	Added	54,451	+18,137	$1,369,987	+101.2%	0.49%
AEM	Agnico Eagle Mines Ltd Basic Materials	Reduced	6,659	-2,141	$1,351,643	−9.4%	0.48%
NPKI	NPK International Inc. Industrials	Added	92,505	+391	$1,340,397	+22.1%	0.48%
CODA	Coda Octopus Group, Inc. Industrials	Added	117,366	+67,329	$1,326,235	+185.0%	0.47%
ALNT	Allient Inc Technology	Added	22,264	+75	$1,315,579	+10.3%	0.47%
OPY	Oppenheimer Holdings Inc Financial Services	Added	14,605	+66	$1,302,619	+23.9%	0.46%
SPOT	Spotify Technology S.A. Communication Services	Reduced	2,663	-1	$1,291,315	−16.5%	0.46%
NWPX	NWPX Infrastructure, Inc. Basic Materials	Added	16,466	+80	$1,282,042	+25.2%	0.46%