13F filer

Round Rock Advisors

As of Jun 30, 2026 Filed Aug 12, 2026 CIK 1846991 SEC filings ↗

13F Value

$776.4M

Positions

318

Top Position

QQQ7.9%

Top 5

32.5%

Latest filing changes

vs Mar 31, 2026

1 JPST JPMorgan Ultra-Short Income ETF +5.3%+$2.4M

2 HZO Marinemax +92.0%+$2.1M

3 QQQ Invesco QQQ Trust, Series 1 +3.5%+$2.1M

4 VYM Vanguard High Dividend Yield Index Fund — ETF Shares +3.8%+$1.9M

5 SDSI American Century Short Duration Strategic Income ETF +12.7%+$1.9M

Holdings318

#
1	QQQ Invesco QQQ Trust, Series 1	7.9%	$61.0M	+3.5%	82.9K	7.1%	ETF
2	SMH VanEck Semiconductor ETF	7.1%	$55.2M	-3.0%	84.2K	5.1%	ETF
3	VYM Vanguard High Dividend Yield Index Fund — ETF Shares	6.6%	$51.3M	+3.8%	324.9K	7.1%	ETF
4	JPST JPMorgan Ultra-Short Income ETF	6.2%	$48.2M	+5.3%	953.7K	7.0%	ETF
5	IJR iShares Core S&P Small-Cap ETF	4.7%	$36.3M	+2.4%	244.8K	4.5%	ETF
6	VO Vanguard Morningstar Mid-Cap Index Fund — ETF Shares	4.1%	$31.9M	+3.3%	396.5K	4.2%	ETF
7	XLI State Street(R) Industrial Select Sector SPDR(R) ETF	2.8%	$21.6M	+3.2%	116.4K	2.8%	ETF
8	AAPL Apple	2.5%	$19.2M	-0.6%	66.4K	2.6%	Common Stock
9	DVY iShares Select Dividend ETF	2.4%	$18.8M	+4.8%	120.1K	2.7%	ETF
10	XLV State Street(R) Health Care Select Sector SPDR(R) ETF	2.4%	$18.2M	+6.6%	115.0K	2.4%	ETF
11	SDSI American Century Short Duration Strategic Income ETF	2.1%	$16.6M	+12.7%	324.0K	2.3%	ETF
12	BRK.A Berkshire Hathaway Class A	1.7%	$13.5M	-5.3%	18	2.1%	Common Stock
13	GOOG Alphabet Class C	1.7%	$13.1M	-0.3%	37.1K	1.6%	Common Stock
14	NBSD Neuberger Short Duration Income ETF	1.7%	$13.0M	+3.8%	257.5K	1.9%	ETF
15	MSFT Microsoft	1.5%	$11.9M	+0.2%	31.9K	1.8%	Common Stock
16	RSP Invesco S&P 500 Equal Weight ETF	1.5%	$11.3M	+18.0%	53.1K	1.3%	ETF
17	XLK State Street(R) Technology Select Sector SPDR(R) ETF	1.4%	$10.8M	-1.8%	56.7K	1.2%	ETF
18	AMZN Amazon	1.0%	$8.1M	-0.3%	34.0K	1.1%	Common Stock
19	SPY State Str SPDR S&P 500 ETF T — Tr Unit	1.0%	$7.6M	+16.0%	10.1K	0.9%	ETF
20	XLU State Street(R) Utilities Select Sector SPDR(R) ETF	0.8%	$6.0M	+4.3%	131.8K	0.9%	ETF

Change compares with the prior filing. Prior % is the share of the portfolio in that filing. Trend shows the quantity held in each of the last four filings: green rose, red fell, grey unchanged.

Exited in Latest Filing29

#	Holding	Prior %	Prior Value	Change	Prior Quantity	Trend (4Q)	Type

Compared with the immediately prior published filing (Mar 31, 2026). Prior values are shown for context and are not included in current totals.