Rockingstone Advisors LLC

In its 13F for Q3 2025 (holdings as of September 30, 2025, filed October 9, 2025), Rockingstone Advisors LLC reported 107 stock positions worth $202.7 million. Its top holding was JPMorgan Ultra-Short Income (JPST) at 4.6% of the portfolio, followed by Nvidia (NVDA, 3.7%) and Celestica (CLS, 3.2%). Compared with Q2 2025, it opened 3 new positions, sold out of 1, added to 32 and reduced 56. The biggest buy was a new position in Omnicom (OMC) and the biggest sale an exit from Unitedhealth (UNH).

Most Recent 13F
Q2 2026
Location
GREAT BARRINGTON, MA
CIK
0002027176
Portfolio Value
$202.7M (Q3 2025)
SEC Filing
0002027176-25-000007 ↗ filed Oct 9, 2025

Holdings Value

0$50.0M$100.0M$150.0M$200.0M$250.0M Q1 2024: $193.7M Q1 2024 Q2 2024: $194.8M Q2 2024 Q3 2024: $203.6M Q3 2024 Q4 2024: $226.4M Q4 2024 Q1 2025: $222.2M Q1 2025 Q2 2025: $190.2M Q2 2025 Q3 2025: $202.7M $202.7M Q3 2025 Q4 2025: $219.5M Q4 2025 Q1 2026: $218.0M Q1 2026 Q2 2026: $249.1M Q2 2026

Holdings 107 stocks · $202.7M
JPST JPMorgan Ultra-Short Income 4.58% 182,795 $9.3M Add +32.4%
NVDA Nvidia Corp. 3.71% 40,312 $7.5M Reduce -10.2%
CLS Celestica Inc. 3.17% 26,090 $6.4M Reduce -15.1%
VGSH Vanguard Short-Term Treasury 3.16% 108,655 $6.4M Reduce -0.2%
VTI VG Morningstar TS MKT ETF-US 2.75% 16,995 $5.6M Reduce -5.9%
XLK SS Technology Select Sector 2.50% 18,008 $5.1M Reduce -3.4%
MSFT Microsoft Corp. 2.46% 9,634 $5.0M Reduce -0.1%
AAPL Apple Inc. 2.44% 19,388 $4.9M Add +0.3%
IWM iShares Russell 2000 ETF 2.43% 20,389 $4.9M Add +9.7%
SPY SS SPDR S&P 500 ETF Trust-US 2.38% 7,250 $4.8M Reduce -1.4%
GOOGL Alphabet Inc. Class A 2.28% 19,000 $4.6M Reduce -1.5%
VGK Vanguard Ftse Europe ETF 2.20% 55,827 $4.5M Reduce -0.3%
VEA Vanguard Ftse Developed ETF 2.10% 70,994 $4.3M Reduce -0.2%
VO Vngrd Mrngstr MD-Cap ETF-Usd 2.10% 14,479 $4.3M Add +14.0%
SPOT Spotify Technology SA 2.06% 5,984 $4.2M Reduce -5.7%
AMZN Amazon.com Inc. 1.97% 18,204 $4.0M Add +1.4%
CRWD CrowdStrike Holdings Inc. Class A 1.93% 7,985 $3.9M Reduce -2.2%
META Meta Platforms Inc. Class A 1.71% 4,732 $3.5M Reduce -8.1%
JPM JPMorgan Chase & Co. 1.71% 10,962 $3.5M Reduce -1.8%
BRK.B Berkshire Hathaway Inc. Class B 1.65% 6,663 $3.3M Add +0.6%
IGV iShares Expanded Tech-Softwa 1.61% 28,285 $3.3M Reduce -0.2%
CSTM Constellium SE 1.58% 214,762 $3.2M Add +0.6%
OMC Omnicom Group 1.57% 38,965 $3.2M New
XLV SS Health Care Select Sector 1.55% 22,594 $3.1M Reduce -3.1%
TDG Transdigm Group Inc. 1.53% 2,354 $3.1M Add +1.2%
PM Philip Morris International 1.50% 18,710 $3.0M Reduce -0.1%
LIN Linde PLC 1.49% 6,354 $3.0M Add +3.3%
PWR Quanta Services Inc. 1.45% 7,093 $2.9M Add +1.7%
SPGI S&P Global Inc. 1.43% 5,946 $2.9M Add +9.6%
MA Mastercard Inc. Class A 1.37% 4,877 $2.8M Reduce -0.1%
IQLT iShares MSCI International Q 1.36% 62,545 $2.8M Add +4.8%
ISRG Intuitive Surgical Inc. 1.33% 6,027 $2.7M Reduce -0.5%
NTRA Natera Inc. 1.30% 16,396 $2.6M Add +6.8%
UBER Uber Technologies Inc. 1.21% 25,074 $2.5M Add +5.8%
LLY Eli Lilly & Co. 1.15% 3,050 $2.3M Add +13.3%
XLF SS Financial Select Sector 1.15% 43,143 $2.3M Reduce -0.6%
EQT Eqt Corp. 1.14% 42,615 $2.3M Add +5.8%
PHO Invesco Water Resources ETF 1.09% 30,749 $2.2M Reduce -1.1%
VYM Vanguard High DVD Yield ETF 1.06% 15,210 $2.1M Reduce -1.2%
COST Costco Wholesale Corp. 1.04% 2,275 $2.1M Add +0.3%
NMFC New Mountain Finance Corp. filed as NEW MTN FIN CORP 0.89% 186,932 $1.8M Reduce -7.3%
CNQ Canadian Natural Resources 0.84% 53,015 $1.7M Add +0.0%
MKC McCormick & Co.-Non VTG SHRS 0.82% 24,727 $1.7M Reduce -0.2%
VYMI Vanguard Int High DVD YLD Inc. 0.80% 19,115 $1.6M No change
LYV Live Nation Entertainment Inc. 0.75% 9,249 $1.5M Reduce -2.9%
EFV iShares MSCI Eafe Value ETF 0.71% 21,175 $1.4M Add +26.4%
VPL Vanguard Ftse Pacific ETF 0.70% 16,120 $1.4M Add +0.2%
VT Vanguard Tot World STK ETF 0.70% 10,246 $1.4M Add +0.6%
VWO Vanguard Ftse Emerging Marke 0.69% 25,940 $1.4M Add +1.1%
VOO Vanguard S&P 500 ETF 0.66% 2,176 $1.3M Reduce -10.3%
QQQM Invesco Nasdaq 100 ETF 0.63% 5,173 $1.3M Reduce -5.0%
EWJ iShares MSCI Japan ETF 0.55% 13,979 $1.1M Reduce -4.1%
V Visa Inc. Class A 0.55% 3,264 $1.1M Reduce -0.5%
PFF iShares Preferred & Income S 0.55% 35,227 $1.1M Reduce -7.3%
QQQ Invesco QQQ Trust Series 1 0.51% 1,710 $1.0M Reduce -2.3%
BKNG Booking Holdings Inc. 0.50% 186 $1.0M Add +8.8%
IEF iShares 7-10 Year Treasury B 0.49% 10,375 $1.0M Reduce -0.6%
JPIE JPMorgan Income ETF 0.49% 21,480 $997K Reduce -9.0%
VOE Vngrd Mrngstr MD-Cap Val ETF 0.48% 5,580 $974K Add +25.0%
VIGI Vanguard Int Div App Indx FD 0.48% 10,793 $967K Add +0.7%
VFVA Vanguard U.S. Value Factor 0.45% 7,092 $905K Add +16.9%
VIG Vanguard Dividend Apprec ETF 0.43% 4,076 $880K Reduce -6.0%
XLY SS Consumer Disc Select Sect 0.41% 3,439 $824K No change
HD Home Depot Inc. 0.39% 1,967 $797K Reduce -18.9%
XLC SS Comm Select Sector SPDR 0.39% 6,695 $792K Reduce -0.1%
BA The Boeing Co. 0.37% 3,512 $758K Add +29.4%
JEPI JPMorgan Equity Premium Inco 0.37% 13,115 $749K Reduce -1.6%
XOP SS SPDR S&P Og Exp & Prod 0.37% 5,610 $742K Reduce -0.9%
GLD SPDR Gold Shares 0.36% 2,070 $736K Reduce -1.6%
XLI SS Industrial Select Sector 0.34% 4,500 $694K Reduce -3.5%
LQD Ishr Ibx Usd Invgd CB ETF-Ui 0.34% 6,223 $694K Reduce -2.4%
EWX State Street SPDR S&P Emergi 0.33% 10,084 $679K No change
LMT Lockheed Martin Corp. 0.32% 1,313 $655K Reduce -3.7%
EMB iShares JP Morgan Usd Emergi 0.32% 6,871 $654K No change
JEPQ JPM Nasdaq Equity Premium filed as J P MORGAN EXCHANGE TRADED F 0.31% 10,950 $630K Reduce -4.6%
EEM iShares MSCI Emerging Market 0.28% 10,805 $577K Add +1.0%
DFAC Dimensional US Core Equity 2 0.28% 14,471 $558K No change
PEP Pepsico Inc. 0.27% 3,949 $555K Reduce -20.0%
DEM Wisdomtree Emerging Markets 0.24% 10,700 $492K No change
IBB iShares Biotechnology ETF 0.24% 3,328 $480K Reduce -17.6%
VTV Vanguard Mrngstr Val ETF-Aui 0.23% 2,493 $465K New
DSI iShares ESG MSCI KLD 400 ETF 0.23% 3,631 $457K Reduce -1.8%
CAT Caterpillar Inc. 0.23% 956 $456K Reduce -28.4%
SPLV Invesco S&P 500 Low Volatili 0.22% 6,085 $447K Reduce -9.0%
MS Morgan Stanley 0.21% 2,680 $426K No change
XLP SS Consumer Staples Sel Sect 0.20% 5,196 $407K No change
DIS The Walt Disney Co. filed as DISNEY WALT CO 0.20% 3,500 $401K No change
VNQ Vanguard Real Estate ETF 0.18% 3,959 $362K Add +3.9%
BABA Alibaba Group Holding-SP ADR 0.17% 1,970 $352K Reduce -1.0%
AGG iShares Core U.S. Aggregate 0.17% 3,500 $351K Reduce -12.5%
SBUX Starbucks Corp. 0.17% 4,029 $341K No change
GOOG Alphabet Inc. Class C 0.17% 1,380 $336K Add +22.1%
XLU St Sr Utl SL SE SPDR ETF-Usd 0.16% 3,820 $333K Reduce -0.9%
SCZ iShares MSCI Eafe Small-Cap 0.16% 4,245 $326K No change
DES Wisdomtree US Smallcap Divid 0.15% 9,065 $305K No change
IJR iShares Core S&P Small-Cap E 0.15% 2,475 $294K Add +2.9%
BND Vanguard Total Bond Market 0.13% 3,500 $260K Reduce -12.5%
FLOT iShares Floating Rate Bond E 0.12% 4,680 $239K No change
VWOB Vanguard Emerg MKTS Gov BND 0.12% 3,550 $237K No change
SPYX SS SPDR S&P 500 Foss FL ETF 0.12% 4,280 $235K Reduce -5.1%
OEF iShares S&P 100 ETF 0.12% 700 $233K No change
JNK SS SPDR BB High Yield Bond 0.11% 2,364 $232K Reduce -1.1%
EWA iShares MSCI Australia ETF 0.11% 8,502 $230K No change
XLB SS Materials Select Sector 0.10% 2,365 $212K New
VXUS Vanguard Total Intl Stock 0.10% 2,800 $206K Reduce -3.5%
MSTR Strategy Inc. 0.10% 635 $205K Reduce -0.8%
AGRO Adecoagro SA 0.07% 18,845 $148K Add +2.2%

Portfolio Sells Q2 2025 → Q3 2025
UNH Unitedhealth Group Inc. Sold out 0.00% −0.79
SPOT Spotify Technology SA Reduce -5.7% 2.06% −0.50
ISRG Intuitive Surgical Inc. Reduce -0.5% 1.33% −0.40
PM Philip Morris International Reduce -0.1% 1.50% −0.30
META Meta Platforms Inc. Class A Reduce -8.1% 1.71% −0.28
CRWD CrowdStrike Holdings Inc. Class A Reduce -2.2% 1.93% −0.25
NMFC New Mountain Finance Corp. Reduce -7.3% 0.89% −0.23
VGSH Vanguard Short-Term Treasury Reduce -0.2% 3.16% −0.21
MKC McCormick & Co.-Non VTG SHRS Reduce -0.2% 0.82% −0.17
VTI VG Morningstar TS MKT ETF-US Reduce -5.9% 2.75% −0.13
XLV SS Health Care Select Sector Reduce -3.1% 1.55% −0.10
JPIE JPMorgan Income ETF Reduce -9.0% 0.49% −0.08
VGK Vanguard Ftse Europe ETF Reduce -0.3% 2.20% −0.08
HD Home Depot Inc. Reduce -18.9% 0.39% −0.07
MA Mastercard Inc. Class A Reduce -0.1% 1.37% −0.07
PEP Pepsico Inc. Reduce -20.0% 0.27% −0.07
VOO Vanguard S&P 500 ETF Reduce -10.3% 0.66% −0.07
PFF iShares Preferred & Income S Reduce -7.3% 0.55% −0.06
V Visa Inc. Class A Reduce -0.5% 0.55% −0.06
MSFT Microsoft Corp. Reduce -0.1% 2.46% −0.06
PHO Invesco Water Resources ETF Reduce -1.1% 1.09% −0.05
XLF SS Financial Select Sector Reduce -0.6% 1.15% −0.05
CAT Caterpillar Inc. Reduce -28.4% 0.23% −0.05
SPLV Invesco S&P 500 Low Volatili Reduce -9.0% 0.22% −0.04
AGG iShares Core U.S. Aggregate Reduce -12.5% 0.17% −0.04
MSTR Strategy Inc. Reduce -0.8% 0.10% −0.04
VEA Vanguard Ftse Developed ETF Reduce -0.2% 2.10% −0.03
VIG Vanguard Dividend Apprec ETF Reduce -6.0% 0.43% −0.03
IEF iShares 7-10 Year Treasury B Reduce -0.6% 0.49% −0.03
IBB iShares Biotechnology ETF Reduce -17.6% 0.24% −0.03
JEPI JPMorgan Equity Premium Inco Reduce -1.6% 0.37% −0.03
IGV iShares Expanded Tech-Softwa Reduce -0.2% 1.61% −0.03
BND Vanguard Total Bond Market Reduce -12.5% 0.13% −0.03
LQD Ishr Ibx Usd Invgd CB ETF-Ui Reduce -2.4% 0.34% −0.03
VYM Vanguard High DVD Yield ETF Reduce -1.2% 1.06% −0.02
EWJ iShares MSCI Japan ETF Reduce -4.1% 0.55% −0.02
XLI SS Industrial Select Sector Reduce -3.5% 0.34% −0.02
QQQM Invesco Nasdaq 100 ETF Reduce -5.0% 0.63% −0.02
JEPQ JPM Nasdaq Equity Premium Reduce -4.6% 0.31% −0.02
NVDA Nvidia Corp. Reduce -10.2% 3.71% −0.02
LYV Live Nation Entertainment Inc. Reduce -2.9% 0.75% −0.01
LMT Lockheed Martin Corp. Reduce -3.7% 0.32% −0.01
XOP SS SPDR S&P Og Exp & Prod Reduce -0.9% 0.37% −0.01
JNK SS SPDR BB High Yield Bond Reduce -1.1% 0.11% −0.01
SPY SS SPDR S&P 500 ETF Trust-US Reduce -1.4% 2.38% −0.01
SPYX SS SPDR S&P 500 Foss FL ETF Reduce -5.1% 0.12% −0.00
VXUS Vanguard Total Intl Stock Reduce -3.5% 0.10% −0.00
XLU St Sr Utl SL SE SPDR ETF-Usd Reduce -0.9% 0.16% −0.00
QQQ Invesco QQQ Trust Series 1 Reduce -2.3% 0.51% −0.00
DSI iShares ESG MSCI KLD 400 ETF Reduce -1.8% 0.23% −0.00

Portfolio Buys Q2 2025 → Q3 2025
OMC Omnicom Group New 1.57% +1.57
JPST JPMorgan Ultra-Short Income Add +32.4% 4.58% +0.90
AAPL Apple Inc. Add +0.3% 2.44% +0.35
IWM iShares Russell 2000 ETF Add +9.7% 2.43% +0.33
VO Vngrd Mrngstr MD-Cap ETF-Usd Add +14.0% 2.10% +0.23
VTV Vanguard Mrngstr Val ETF-Aui New 0.23% +0.23
EFV iShares MSCI Eafe Value ETF Add +26.4% 0.71% +0.15
XLB SS Materials Select Sector New 0.10% +0.10
VOE Vngrd Mrngstr MD-Cap Val ETF Add +25.0% 0.48% +0.09
CSTM Constellium SE Add +0.6% 1.58% +0.08
BA The Boeing Co. Add +29.4% 0.37% +0.07
VFVA Vanguard U.S. Value Factor Add +16.9% 0.45% +0.07
PWR Quanta Services Inc. Add +1.7% 1.45% +0.06
GOOG Alphabet Inc. Class C Add +22.1% 0.17% +0.06
UBER Uber Technologies Inc. Add +5.8% 1.21% +0.05
LLY Eli Lilly & Co. Add +13.3% 1.15% +0.04
VWO Vanguard Ftse Emerging Marke Add +1.1% 0.69% +0.03
EEM iShares MSCI Emerging Market Add +1.0% 0.28% +0.01
VT Vanguard Tot World STK ETF Add +0.6% 0.70% +0.01
IQLT iShares MSCI International Q Add +4.8% 1.36% +0.01
IJR iShares Core S&P Small-Cap E Add +2.9% 0.15% +0.01
VPL Vanguard Ftse Pacific ETF Add +0.2% 0.70% +0.00
VNQ Vanguard Real Estate ETF Add +3.9% 0.18% +0.00
AGRO Adecoagro SA Add +2.2% 0.07% −0.02
BKNG Booking Holdings Inc. Add +8.8% 0.50% −0.02
LIN Linde PLC Add +3.3% 1.49% −0.03
VIGI Vanguard Int Div App Indx FD Add +0.7% 0.48% −0.03
CNQ Canadian Natural Resources Add +0.0% 0.84% −0.04
BRK.B Berkshire Hathaway Inc. Class B Add +0.6% 1.65% −0.04
NTRA Natera Inc. Add +6.8% 1.30% −0.06
SPGI S&P Global Inc. Add +9.6% 1.43% −0.08
EQT Eqt Corp. Add +5.8% 1.14% −0.09
AMZN Amazon.com Inc. Add +1.4% 1.97% −0.10
COST Costco Wholesale Corp. Add +0.3% 1.04% −0.14
TDG Transdigm Group Inc. Add +1.2% 1.53% −0.33

All Filings

QuarterPositions13F Reported ValueTop Holdings
Q2 2026 115$249.1MJPST, TSEM, XLK, GOOGL, IWM
Q1 2026 113$218.0MJPST, VGSH, TSEM, NVDA, GOOGL
Q4 2025 112$219.5MJPST, NVDA, GOOGL, VGSH, VTI
Q3 2025 107$202.7MJPST, NVDA, CLS, VGSH, VTI
Q2 2025 105$190.2MNVDA, JPST, VGSH, VTI, SPOT
Q1 2025 101$222.2MJPST, VGSH, SPY, NVDA, AAPL
Q4 2024 103$226.4MJPST, VGSH, NVDA, SPY, AAPL
Q3 2024 99$203.6MJPST, NVDA, SPY, XLK, AAPL
Q2 2024 105$194.8MNVDA, JPST, SPY, XLK, AAPL
Q1 2024 103$193.7MJPST, NVDA, SPY, XLK, VTI