Round Rock Advisors LLC
In its 13F for Q2 2026 (holdings as of June 30, 2026, filed August 12, 2026), Round Rock Advisors LLC reported 318 stock positions worth $776.4 million. Its top holding was Invesco QQQ Trust Series 1 (QQQ) at 7.9% of the portfolio, followed by Vaneck Semiconductor ETF (SMH, 7.1%) and Vanguard High DVD Yield ETF (VYM, 6.6%). Compared with Q1 2026, it opened 27 new positions, sold out of 28, added to 88 and reduced 89. The biggest buy was Invesco QQQ Trust Series 1 (QQQ, shares +4%) and the biggest sale Berkshire Hathaway Class A (BRK.A, shares −5%).
- Most Recent 13F
- Q2 2026
- Location
- WILTON, CT
- CIK
- 0001846991
- Portfolio Value
- $776.4M (Q2 2026)
- SEC Filing
- 0001951757-26-001257 ↗ filed Aug 12, 2026
Holdings Value
Holdings 318 stocks · $776.4M
| QQQ Invesco QQQ Trust Series 1 | 7.86% | 82,898 | $61.0M | Add +3.5% |
| SMH Vaneck Semiconductor ETF | 7.11% | 84,209 | $55.2M | Reduce -3.0% |
| VYM Vanguard High DVD Yield ETF | 6.61% | 324,884 | $51.3M | Add +3.8% |
| JPST JPMorgan Ultra-Short Income | 6.21% | 953,692 | $48.2M | Add +5.3% |
| IJR iShares Core S&P Small-Cap E | 4.68% | 244,807 | $36.3M | Add +2.4% |
| VO Vngrd Mrngstr MD-Cap ETF-Usd | 4.11% | 396,501 | $31.9M | Add +3.3% |
| XLI SS Industrial Select Sector | 2.78% | 116,373 | $21.6M | Add +3.2% |
| AAPL Apple Inc. | 2.48% | 66,412 | $19.2M | Reduce -0.6% |
| DVY iShares Select Dividend ETF | 2.42% | 120,146 | $18.8M | Add +4.8% |
| XLV SS Health Care Select Sector | 2.35% | 114,998 | $18.2M | Add +6.6% |
| SDSI Amer Cent SH Dur Strat Inc. | 2.14% | 324,038 | $16.6M | Add +12.7% |
| BRK.A Berkshire Hathaway Inc. Class A | 1.74% | 18 | $13.5M | Reduce -5.3% |
| GOOG Alphabet Inc. Class C | 1.69% | 37,106 | $13.1M | Reduce -0.3% |
| NBSD Neuberger Short Duration Inc. | 1.68% | 257,509 | $13.0M | Add +3.8% |
| MSFT Microsoft Corp. | 1.53% | 31,894 | $11.9M | Add +0.2% |
| RSP Invesco S&P 500 Equal Weight | 1.46% | 53,115 | $11.3M | Add +18.0% |
| XLK SS Technology Select Sector | 1.39% | 56,686 | $10.8M | Reduce -1.8% |
| AMZN Amazon.com Inc. | 1.04% | 33,963 | $8.1M | Reduce -0.3% |
| SPY SS SPDR S&P 500 ETF Trust-US | 0.98% | 10,145 | $7.6M | Add +16.0% |
| XLU St Sr Utl SL SE SPDR ETF-Usd | 0.77% | 131,792 | $6.0M | Add +4.3% |
| NVDA Nvidia Corp. | 0.61% | 23,521 | $4.7M | Reduce -1.1% |
| ABBV Abbvie Inc. | 0.58% | 18,032 | $4.5M | Reduce -0.3% |
| HZO Marinemax Inc. | 0.57% | 120,030 | $4.4M | Add +92.0% |
| XOM Exxon Mobil Corp. | 0.56% | 31,771 | $4.3M | Add +0.3% |
| QQQM Invesco Nasdaq 100 ETF | 0.55% | 14,212 | $4.3M | Add +0.5% |
| USMV iShares MSCI USA Min Vol Fac | 0.55% | 44,307 | $4.3M | Reduce -2.7% |
| IVW iShares S&P 500 Growth ETF | 0.55% | 30,832 | $4.2M | Reduce -1.5% |
| UNH Unitedhealth Group Inc. | 0.49% | 9,062 | $3.8M | Reduce -3.1% |
| GOOGL Alphabet Inc. Class A | 0.44% | 9,510 | $3.4M | Reduce -0.5% |
| MU Micron Technology Inc. | 0.43% | 2,909 | $3.4M | Reduce -15.8% |
| IBM Intl Business Machines Corp. filed as INTERNATIONAL BUSINESS MACHS | 0.42% | 11,577 | $3.3M | Add +3.3% |
| IVV iShares Core S&P 500 ETF | 0.42% | 4,343 | $3.3M | Add +4.1% |
| WMB Williams Cos Inc. | 0.41% | 42,776 | $3.2M | No change |
| IBIT iShares Bitcoin Trust ETF | 0.40% | 93,841 | $3.1M | New |
| FEIM Frequency Electronics Inc. | 0.39% | 46,092 | $3.1M | No change |
| DELL Dell Technologies -C | 0.39% | 7,056 | $3.0M | No change |
| APD Air Products & Chemicals Inc. | 0.38% | 10,133 | $3.0M | No change |
| APH Amphenol Corp. Class A | 0.38% | 16,789 | $3.0M | No change |
| ICE Intercontinental Exchange Inc. | 0.38% | 23,854 | $2.9M | No change |
| CB Chubb Ltd. | 0.35% | 7,921 | $2.7M | No change |
| JNJ Johnson & Johnson | 0.34% | 10,503 | $2.7M | Add +0.4% |
| IBDR iShares Ibonds Dec 2026 Term | 0.34% | 109,212 | $2.6M | Reduce -0.7% |
| COF Capital One Financial Corp. | 0.34% | 13,117 | $2.6M | Add +0.1% |
| PKE Park Aerospace Corp. | 0.33% | 67,808 | $2.6M | No change |
| C Citigroup Inc. | 0.32% | 17,988 | $2.5M | No change |
| ALNT Allient Inc. | 0.32% | 24,086 | $2.5M | Add +8.2% |
| BRK.B Berkshire Hathaway Inc. Class B | 0.31% | 4,871 | $2.4M | Add +23.6% |
| VGT Vanguard Info Tech ETF | 0.30% | 19,470 | $2.3M | Reduce -0.2% |
| TMS Teamshares Inc. | 0.29% | 277,236 | $2.3M | New |
| CVX Chevron Corp. | 0.29% | 13,353 | $2.2M | No change |
| NWPX NWPX Infrastructure Inc. | 0.28% | 14,625 | $2.2M | Reduce -11.2% |
| NEOG Neogen Corp. | 0.28% | 242,211 | $2.2M | Add +0.0% |
| VIG Vanguard Dividend Apprec ETF | 0.28% | 9,107 | $2.2M | Reduce -0.6% |
| TDAY USA Today Co. Inc. | 0.27% | 249,273 | $2.1M | New |
| CDNL Cardinal Infrastructure GR-A | 0.27% | 22,438 | $2.1M | Add +18.7% |
| IBDS Ishrs Ibnds Dec 27 Corp. ETF | 0.27% | 85,857 | $2.1M | Reduce -1.1% |
| ELV Elevance Health Inc. | 0.26% | 5,303 | $2.1M | Reduce -9.3% |
| SSYS Stratasys Ltd. | 0.25% | 223,922 | $1.9M | No change |
| FTK Flotek Industries Inc. | 0.25% | 81,471 | $1.9M | Add +203.4% |
| PSC Principal US Small-Cap ETF | 0.24% | 26,946 | $1.9M | Add +25.4% |
| PLPC Preformed Line Products Co. | 0.24% | 4,576 | $1.9M | No change |
| JEPI JPMorgan Equity Premium Inco | 0.24% | 33,020 | $1.9M | Reduce -2.6% |
| VOO Vanguard S&P 500 ETF | 0.24% | 2,698 | $1.9M | Add +10.6% |
| SHLS Shoals Technologies Group -A | 0.24% | 185,927 | $1.8M | Add +14.1% |
| ANET Arista Networks Inc. | 0.23% | 10,421 | $1.8M | Add +0.0% |
| TRNS Transcat Inc. | 0.23% | 19,024 | $1.8M | No change |
| WYFI Whitefiber Inc. | 0.23% | 45,386 | $1.8M | Add +146.6% |
| VV Vngrd Mrgstr LRG-Cap ETF-Usd | 0.22% | 5,039 | $1.7M | No change |
| JPM JPMorgan Chase & Co. | 0.22% | 5,271 | $1.7M | Add +0.4% |
| PLUS Eplus Inc. | 0.22% | 20,197 | $1.7M | No change |
| DIA SS SPDR Dow Jones Indus Avg filed as STATE STR SPDR DOW JONES IND | 0.22% | 3,199 | $1.7M | Add +0.3% |
| VTOL Bristow Group Inc. | 0.21% | 39,996 | $1.7M | Add +0.0% |
| NXPI NXP Semiconductors NV | 0.20% | 5,609 | $1.6M | Reduce -0.9% |
| CPSH CPS Technologies Corp. | 0.20% | 283,951 | $1.6M | Reduce -34.8% |
| OPY Oppenheimer Holdings Class A | 0.20% | 14,605 | $1.5M | No change |
| MYFW First Western Financial Inc. | 0.20% | 47,431 | $1.5M | No change |
| NPKI NPK International Inc. | 0.19% | 92,505 | $1.5M | No change |
| BLBD Blue Bird Corp. | 0.19% | 18,606 | $1.5M | No change |
| MYRG MYR Group Inc./Delaware | 0.19% | 2,926 | $1.5M | Reduce -16.0% |
| SXI Standex International Corp. | 0.19% | 4,031 | $1.4M | No change |
| IDR Idaho Strategic Resources Inc. | 0.19% | 43,988 | $1.4M | No change |
| KEEL Keel Infrastructure Corp. | 0.18% | 248,247 | $1.4M | No change |
| NBBK NB Bancorp Inc. | 0.18% | 66,530 | $1.4M | Add +0.1% |
| LRCX Lam Research Corp. | 0.18% | 3,213 | $1.4M | Add +2.3% |
| VCSH Vanguard S/T Corp. Bond ETF | 0.18% | 17,437 | $1.4M | Reduce -1.0% |
| GS Goldman Sachs Group Inc. | 0.18% | 1,349 | $1.4M | Reduce -0.3% |
| HAPN Happen Inc. | 0.18% | 65,554 | $1.4M | No change |
| PEP Pepsico Inc. | 0.17% | 10,036 | $1.4M | Reduce -0.6% |
| PSMT Pricesmart Inc. | 0.17% | 6,886 | $1.3M | No change |
| VBK Van Morst SML-Cap Gro-Usd Inc. | 0.17% | 3,621 | $1.3M | No change |
| BN Brookfield Corp. | 0.17% | 30,712 | $1.3M | No change |
| CVS CVS Health Corp. | 0.17% | 12,599 | $1.3M | No change |
| IJH iShares Core S&P Midcap ETF | 0.17% | 16,676 | $1.3M | Reduce -0.0% |
| MRK Merck & Co. Inc. | 0.16% | 9,901 | $1.3M | Add +0.7% |
| EPD Enterprise Products Partners | 0.16% | 34,255 | $1.3M | Reduce -10.9% |
| SUSA iShares ESG Optimized MSCI U | 0.16% | 8,139 | $1.3M | Reduce -2.1% |
| OCC Optical Cable Corp. | 0.16% | 58,937 | $1.2M | Add +88.5% |
| KO The Coca-Cola Co. | 0.16% | 15,190 | $1.2M | Add +1.1% |
| BNY Bank of New York Mellon Corp. | 0.16% | 8,442 | $1.2M | Add +0.3% |
| RTX RTX Corp. | 0.16% | 6,395 | $1.2M | Reduce -0.6% |
Portfolio Sells Q1 2026 → Q2 2026
| BRK.A Berkshire Hathaway Inc. Class A | Reduce -5.3% | 1.74% | −0.35 |
| EZBC Franklin Bitcoin ETF | Sold out | 0.00% | −0.33 |
| TMS Teamshares Inc. | Sold out | 0.00% | −0.22 |
| TDOC Teladoc Health Inc. | Sold out | 0.00% | −0.20 |
| HON Honeywell International Inc. | Reduce -0.1% | 0.13% | −0.18 |
| LBRT Liberty Energy Inc. | Reduce -39.5% | 0.15% | −0.18 |
| SWIM Latham Group Inc. | Sold out | 0.00% | −0.14 |
| CCLD Carecloud Inc. | Sold out | 0.00% | −0.12 |
| AAPL Apple Inc. | Reduce -0.6% | 2.48% | −0.12 |
| SPOT Spotify Technology SA | Reduce -43.6% | 0.09% | −0.11 |
| REX Rex American Resources Corp. | Reduce -30.6% | 0.13% | −0.10 |
| CRMD Cormedix Inc. | Sold out | 0.00% | −0.10 |
| USMV iShares MSCI USA Min Vol Fac | Reduce -2.7% | 0.55% | −0.10 |
| BDTX Black Diamond Therapeutics I | Sold out | 0.00% | −0.09 |
| BKSY Blacksky Technology Inc. | Reduce -35.6% | 0.13% | −0.08 |
| ARLO Arlo Technologies Inc. | Sold out | 0.00% | −0.08 |
| BXC Bluelinx Holdings Inc. | Sold out | 0.00% | −0.08 |
| ARRY Array Technologies Inc. | Reduce -46.5% | 0.07% | −0.08 |
| AEM Agnico Eagle Mines Ltd. | Reduce -0.7% | 0.13% | −0.07 |
| EYE National Vision Holdings Inc. | Sold out | 0.00% | −0.07 |
| AORT Artivion Inc. | Sold out | 0.00% | −0.07 |
| PFE Pfizer Inc. | Reduce -39.5% | 0.06% | −0.07 |
| ACA Arcosa Inc. | Sold out | 0.00% | −0.07 |
| IBDR iShares Ibonds Dec 2026 Term | Reduce -0.7% | 0.34% | −0.07 |
| NFLX Netflix Inc. | Reduce -12.6% | 0.08% | −0.07 |
| PEP Pepsico Inc. | Reduce -0.6% | 0.17% | −0.06 |
| ATMU Atmus Filtration Technologie | Reduce -45.6% | 0.04% | −0.06 |
| PLX Protalix Biotherapeutics Inc. | Sold out | 0.00% | −0.06 |
| AMPH Amphastar Pharmaceuticals Inc. | Sold out | 0.00% | −0.06 |
| EPD Enterprise Products Partners | Reduce -10.9% | 0.16% | −0.06 |
| BUFQ FT VST Lad NSDQ Buf ETF-Usdi | Sold out | 0.00% | −0.06 |
| IBDS Ishrs Ibnds Dec 27 Corp. ETF | Reduce -1.1% | 0.27% | −0.05 |
| JEPI JPMorgan Equity Premium Inco | Reduce -2.6% | 0.24% | −0.05 |
| ITA iShares U.S. Aerospace & Def | Reduce -34.6% | 0.08% | −0.05 |
| LSTR Landstar System Inc. | Reduce -49.3% | 0.06% | −0.05 |
| OSIS Osi Systems Inc. | Sold out | 0.00% | −0.05 |
| ATEC Alphatec Holdings Inc. | Sold out | 0.00% | −0.05 |
| EFAV iShares MSCI Eafe Min Vol Fa | Reduce -9.3% | 0.13% | −0.05 |
| CPSH CPS Technologies Corp. | Reduce -34.8% | 0.20% | −0.05 |
| AMZN Amazon.com Inc. | Reduce -0.3% | 1.04% | −0.04 |
| ESPR Esperion Therapeutics Inc. | Sold out | 0.00% | −0.04 |
| CMCSA Comcast Corp. Class A | Reduce -27.5% | 0.04% | −0.04 |
| CALF PCR US SM CP CSH CWS ETF-Usd | Sold out | 0.00% | −0.04 |
| XERS Xeris Biopharma Holdings Inc. | Reduce -52.4% | 0.05% | −0.04 |
| PRIM Primoris Services Corp. | Sold out | 0.00% | −0.04 |
| SLV iShares Silver Trust | Sold out | 0.00% | −0.04 |
| RIGL Rigel Pharmaceuticals Inc. | Sold out | 0.00% | −0.04 |
| VCSH Vanguard S/T Corp. Bond ETF | Reduce -1.0% | 0.18% | −0.04 |
| HDV iShares Core High Dividend E | Sold out | 0.00% | −0.04 |
| AKBA Akebia Therapeutics Inc. | Sold out | 0.00% | −0.04 |
Portfolio Buys Q1 2026 → Q2 2026
| QQQ Invesco QQQ Trust Series 1 | Add +3.5% | 7.86% | +0.79 |
| IBIT iShares Bitcoin Trust ETF | New | 0.40% | +0.40 |
| HZO Marinemax Inc. | Add +92.0% | 0.57% | +0.31 |
| TMS Teamshares Inc. | New | 0.29% | +0.29 |
| TDAY USA Today Co. Inc. | New | 0.27% | +0.27 |
| WYFI Whitefiber Inc. | Add +146.6% | 0.23% | +0.19 |
| FTK Flotek Industries Inc. | Add +203.4% | 0.25% | +0.18 |
| CDNL Cardinal Infrastructure GR-A | Add +18.7% | 0.27% | +0.16 |
| RSP Invesco S&P 500 Equal Weight | Add +18.0% | 1.46% | +0.13 |
| IJR iShares Core S&P Small-Cap E | Add +2.4% | 4.68% | +0.13 |
| OCC Optical Cable Corp. | Add +88.5% | 0.16% | +0.12 |
| ALNT Allient Inc. | Add +8.2% | 0.32% | +0.12 |
| SPY SS SPDR S&P 500 ETF Trust-US | Add +16.0% | 0.98% | +0.11 |
| SND Smart Sand Inc. | New | 0.10% | +0.10 |
| OMDA Omada Health Inc. | New | 0.10% | +0.10 |
| GENI Genius Sports Ltd. | New | 0.08% | +0.08 |
| LRCX Lam Research Corp. | Add +2.3% | 0.18% | +0.08 |
| RES RPC Inc. | New | 0.08% | +0.08 |
| XRAY Dentsply Sirona Inc. | New | 0.07% | +0.07 |
| SHLS Shoals Technologies Group -A | Add +14.1% | 0.24% | +0.07 |
| FENC Fennec Pharmaceuticals Inc. | New | 0.07% | +0.07 |
| TUSK Mammoth Energy Services Inc. | New | 0.06% | +0.06 |
| CERS Cerus Corp. | Add +34.3% | 0.13% | +0.06 |
| LIND Lindblad Expeditions Holding | Add +24.0% | 0.14% | +0.06 |
| AMAT Applied Materials Inc. | Add +3.3% | 0.12% | +0.06 |
| PSC Principal US Small-Cap ETF | Add +25.4% | 0.24% | +0.05 |
| ARQ Arq Inc. | Add +98.7% | 0.12% | +0.05 |
| AMD Advanced Micro Devices | Add +2.3% | 0.08% | +0.05 |
| KVHI KVH Industries Inc. | New | 0.05% | +0.05 |
| TCBK Trico Bancshares | New | 0.05% | +0.05 |
| HWKN Hawkins Inc. | New | 0.04% | +0.04 |
| JOUT Johnson Outdoors Inc. Class A | Add +78.9% | 0.13% | +0.04 |
| OPLN Openlane Inc. | New | 0.04% | +0.04 |
| QQQM Invesco Nasdaq 100 ETF | Add +0.5% | 0.55% | +0.04 |
| KLAC KLA Corp. | Add +2.8% | 0.09% | +0.04 |
| AMSC American Superconductor Corp. | Add +29.9% | 0.14% | +0.04 |
| LPTH Lightpath Technologies Inc. Class A | Add +59.5% | 0.06% | +0.04 |
| TGTX TG Therapeutics Inc. | New | 0.04% | +0.04 |
| FPS Forgent Power Solutions Class A | Add +1.0% | 0.09% | +0.03 |
| ANET Arista Networks Inc. | Add +0.0% | 0.23% | +0.03 |
| GRDN Guardian Phrmcy Services-A | Add +57.0% | 0.10% | +0.03 |
| AIS Vistashares Ais ETF | New | 0.03% | +0.03 |
| SAIA Saia Inc. | New | 0.03% | +0.03 |
| SPSM SS SPDR P S&P 600 Small Cap | New | 0.03% | +0.03 |
| SNDR Schneider National Inc. Class B | New | 0.03% | +0.03 |
| VTI VG Morningstar TS MKT ETF-US | New | 0.03% | +0.03 |
| SCHM Schwab US Mid Cap ETF | New | 0.03% | +0.03 |
| IYW iShares Ustechnology ETF | New | 0.03% | +0.03 |
| CSCO Cisco Systems Inc. | New | 0.03% | +0.03 |
| LLY Eli Lilly & Co. | New | 0.03% | +0.03 |
All Filings
| Quarter | Positions | 13F Reported Value | Top Holdings |
|---|---|---|---|
| Q2 2026 | 318 | $776.4M | QQQ, SMH, VYM, JPST, IJR |
| Q1 2026 | 318 | $653.5M | VYM, QQQ, JPST, SMH, IJR |
| Q4 2025Amended | 326 | $664.8M | QQQ, JPST, VYM, SMH, IJR |
| Q3 2025 | 327 | $631.2M | QQQ, JPST, VYM, SMH, IJR |
| Q2 2025 | 215 | $579.7M | JPST, QQQ, VYM, SMH, VO |
| Q1 2025 | 216 | $539.2M | JPST, VYM, QQQ, VO, IJR |
| Q4 2024 | 217 | $487.5M | JPST, QQQ, VYM, AAPL, IJR |
| Q3 2024 | 183 | $427.8M | VYM, QQQ, IJR, VO, AAPL |
| Q2 2024 | 180 | $410.7M | QQQ, VYM, IJR, SMH, VO |
| Q1 2024 | 190 | $417.4M | VYM, QQQ, VO, IJR, SMH |