Funds · 13F filer · Wilton, CT

Round Rock Advisors LLC

$776.4M in 318 U.S. stocks and ETFs at the end of June 30, 2026, as reported to the SEC.1

1y return+23.7%S&P 500 +20.9%
3y return+57.0%S&P 500 +68.5%
5y return+53.9%S&P 500 +74.5%

These returns are for its stock picks as disclosed on Form 13F: last quarter's holdings, valued at this quarter's prices. They miss trades within each quarter, short positions, options, bonds, cash and fees, so they aren't the returns its clients got.

$100 invested in its stock picks

Since December 31, 2020: $175 against $200 in the S&P 500.2

Round Rock Advisors LLCS&P 500 (SPY)
$93$100$20020202026

Top holdings

At the end of June 30, 2026. Change is in shares since the quarter before.2

StockValueShare of portfolioChange
QQQInvesco Qqq Tr$61.0M7.9%+3.5%
SMHVaneck Etf Trust$55.2M7.1%−3.0%
VYMVanguard Whitehall Fds$51.3M6.6%+3.8%
JPSTJ P Morgan Exchange Traded F$48.2M6.2%+5.3%
IJRIshares Tr$36.3M4.7%+2.4%
VOVanguard Index Fds$31.9M4.1%+3.3%
XLISelect Sector Spdr Tr$21.6M2.8%+3.2%
AAPLApple Inc$19.2M2.5%
DVYIshares Tr$18.8M2.4%+4.8%
XLVSelect Sector Spdr Tr$18.2M2.4%+6.6%
SDSIAmerican Centy Etf Tr$16.6M2.1%+12.7%
BRK/ABerkshire Hathaway Inc Del$13.5M1.7%−5.3%
GOOGAlphabet Inc$13.1M1.7%
NBSDNeuberger Berman Etf Trust$13.0M1.7%+3.8%
MSFTMicrosoft Corp$11.9M1.5%
RSPInvesco Exchange Traded Fd T$11.3M1.5%+18.0%
XLKSelect Sector Spdr Tr$10.8M1.4%−1.8%
AMZNAmazon Com Inc$8.1M1.0%
SPYState Str Spdr S&p 500 Etf T$7.6M1.0%+16.0%
XLUSelect Sector Spdr Tr$6.0M0.8%+4.3%
NVDANvidia Corporation$4.7M0.6%−1.1%
ABBVAbbvie Inc$4.5M0.6%
HZOMarinemax Inc$4.4M0.6%+92.0%
Exxon Mobil CorpCUSIP 30231G102$4.3M0.6%
QQQMInvesco Exch Traded Fd Tr II$4.3M0.6%

Best picks still held

How each current holding has done since the quarter it first appeared in its filings (up to six years back).

StockHeld sinceReturn sinceNow worth
NVDANvidia CorporationDecember 31, 2022+1269.2%$4.7M
DELLDell Technologies IncDecember 31, 2023+464.0%$3.0M
APHAmphenol CorpDecember 31, 2020+439.3%$3.0M
SMHVaneck Etf TrustMarch 31, 2021+438.6%$55.2M
GOOGAlphabet IncDecember 31, 2020+303.4%$13.1M
Exxon Mobil CorpCUSIP 30231G102December 31, 2020+231.7%$4.3M
XLKSelect Sector Spdr TrDecember 31, 2020+193.1%$10.8M
GOOGLAlphabet IncDecember 31, 2021+146.7%$3.4M
QQQInvesco Qqq TrDecember 31, 2020+134.7%$61.0M
IBMInternational Business MachsDecember 31, 2020+123.4%$3.3M

Sold off last quarter

  • EZBCFranklin Templeton Digital H was $2.1M
  • Honeywell Intl IncCUSIP 438516106 was $2.0M
  • Live Oak Acquisition Corp VCUSIP G5509P102 was $1.4M
  • TDOCTeladoc Health Inc was $1.3M
  • SWIMLatham Group Inc was $884K
  • CCLDCarecloud Inc was $790K
  • Bitfarms LtdCUSIP 09173B107 was $678K
  • CRMDCormedix Inc was $629K
  • BDTXBlack Diamond Therapeutics I was $584K
  • ARLOArlo Technologies Inc was $546K

Quarter by quarter

QuarterIts picksS&P 500
June 30, 2026+15.6%+14.8%
March 31, 2026−1.1%−4.6%
December 31, 2025+1.9%+2.4%
September 30, 2025+6.1%+7.8%
June 30, 2025+5.8%+10.5%
March 31, 2025−2.7%−4.6%
December 31, 2024+0.0%+2.1%
September 30, 2024+5.6%+5.4%
June 30, 2024+2.2%+4.0%
March 31, 2024+7.3%+10.0%
December 31, 2023+11.0%+11.2%
September 30, 2023−4.1%−3.6%
June 30, 2023+5.5%+8.3%
March 31, 2023+5.4%+7.0%
December 31, 2022+7.8%+7.1%
September 30, 2022−5.5%−5.3%
June 30, 2022−14.9%−16.5%
March 31, 2022−5.7%−4.9%
December 31, 2021+9.0%+10.7%
September 30, 2021−1.1%+0.3%

Sources

Every number on this page points here. Each one links to the public record.

  1. 1
    CIK 1846991
  2. 2
    Filed August 12, 2026 · accession 0001951757-26-001257