Mainstream Capital Management LLC

In its 13F for Q4 2025 (holdings as of December 31, 2025, filed January 21, 2026), Mainstream Capital Management LLC reported 88 stock positions worth $152.8 million. Its top holding was JPMorgan Ultra-Short Income (JPST) at 13.6% of the portfolio, followed by Apple (AAPL, 6.4%) and Amazon.com (AMZN, 4.8%). Compared with Q3 2025, it opened 3 new positions, sold out of 2, added to 11 and reduced 63. The biggest buy was Goldman Sachs Ultra Short Bo (GSST, shares +264%) and the biggest sale JPMorgan Ultra-Short Income (JPST, shares −7%).

Most Recent 13F
Q2 2026
Location
LOS ANGELES, CA
CIK
0002043084
Portfolio Value
$152.8M (Q4 2025)
SEC Filing
0002043084-26-000001 ↗ filed Jan 21, 2026

Holdings Value

0$50.0M$100.0M$150.0M$200.0M Q3 2024: $117.6M Q3 2024 Q4 2024: $142.6M Q4 2024 Q1 2025: $126.2M Q1 2025 Q2 2025: $137.5M Q2 2025 Q3 2025: $150.4M Q3 2025 Q4 2025: $152.8M $152.8M Q4 2025 Q1 2026: $149.1M Q1 2026 Q2 2026: $166.1M Q2 2026

Holdings 88 stocks · $152.8M

JPST JPMorgan Ultra-Short Income 13.57% 409,853 $20.7M Reduce -7.2%
AAPL Apple Inc. 6.36% 35,740 $9.7M Reduce -1.1%
AMZN Amazon.com Inc. 4.78% 31,621 $7.3M Reduce -2.2%
GSST Goldman Sachs Ultra Short Bo 4.17% 126,161 $6.4M Add +264.4%
GOOG Alphabet Inc. Class C 4.14% 20,163 $6.3M Reduce -2.0%
NVDA Nvidia Corp. 3.38% 27,655 $5.2M Reduce -0.8%
META Meta Platforms Inc. Class A 3.28% 7,580 $5.0M Reduce -2.4%
IWF iShares Russell 1000 Growth 2.73% 8,811 $4.2M Reduce -9.8%
IWD iShares Russell 1000 Value E 2.07% 15,000 $3.2M Reduce -9.6%
IVV iShares Core S&P 500 ETF 1.99% 4,437 $3.0M Reduce -0.0%
GOOGL Alphabet Inc. Class A 1.91% 9,310 $2.9M Reduce -4.4%
JPM JPMorgan Chase & Co. 1.82% 8,641 $2.8M Reduce -2.1%
BRK.B Berkshire Hathaway Inc. Class B 1.77% 5,390 $2.7M Reduce -1.6%
TSLA Tesla Inc. 1.73% 5,888 $2.6M Add +1.5%
MSFT Microsoft Corp. 1.68% 5,309 $2.6M Reduce -0.8%
LLY Eli Lilly & Co. 1.61% 2,286 $2.5M Reduce -1.4%
GLD SPDR Gold Shares 1.60% 6,173 $2.4M Reduce -5.6%
SPY SS SPDR S&P 500 ETF Trust-US 1.55% 3,473 $2.4M Reduce -0.2%
LZ Legalzoomcom Inc. 1.46% 225,000 $2.2M No change
NFLX Netflix Inc. 1.41% 23,001 $2.2M No change
COST Costco Wholesale Corp. 1.31% 2,327 $2.0M Reduce -2.4%
TJX TJX Companies Inc. filed as TJX COS INC NEW 1.22% 12,171 $1.9M Reduce -3.9%
SCHW Schwab (charles) Corp. 1.09% 16,618 $1.7M Reduce -2.3%
QUAL iShares MSCI USA Quality Fac 1.07% 8,263 $1.6M Reduce -8.3%
JEPI JPMorgan Equity Premium Inco 1.07% 28,649 $1.6M Reduce -2.4%
VOT Vngrd Mrngstr MC GRW ETF-Usd 1.06% 5,817 $1.6M Reduce -7.5%
VOE Vngrd Mrngstr MD-Cap Val ETF 1.06% 9,119 $1.6M Reduce -8.4%
CRWD CrowdStrike Holdings Inc. Class A 1.06% 3,440 $1.6M Reduce -1.9%
CRM Salesforce Inc. 1.05% 6,042 $1.6M Reduce -4.3%
VGT Vanguard Info Tech ETF 1.00% 2,028 $1.5M Reduce -7.1%
PANW Palo Alto Networks Inc. 0.93% 7,703 $1.4M Reduce -1.8%
IBKR Interactive Brokers Gro Class A 0.91% 21,552 $1.4M Add +11.2%
WMT Walmart Inc. 0.90% 12,316 $1.4M Reduce -2.8%
EFV iShares MSCI Eafe Value ETF 0.87% 18,665 $1.3M Reduce -11.2%
GS Goldman Sachs Group Inc. 0.87% 1,507 $1.3M Reduce -4.6%
HD Home Depot Inc. 0.84% 3,751 $1.3M Reduce -8.9%
BABA Alibaba Group Holding-SP ADR 0.82% 8,504 $1.2M Add +5.6%
GLW Corning Inc. 0.81% 14,157 $1.2M New
CAVA Cava Group Inc. 0.80% 20,789 $1.2M Reduce -5.9%
V Visa Inc. Class A 0.77% 3,349 $1.2M Reduce -1.2%
ORLY O'reilly Automotive Inc. 0.75% 12,521 $1.1M Reduce -4.7%
EFG iShares MSCI Eafe Growth ETF 0.74% 9,885 $1.1M Reduce -9.7%
CEG Constellation Energy 0.73% 3,144 $1.1M Add +27.5%
DOV Dover Corp. 0.72% 5,598 $1.1M Add +4.6%
CMG Chipotle Mexican Grill Inc. 0.68% 27,936 $1.0M Reduce -0.4%
ETN Eaton Corp. PLC 0.67% 3,198 $1.0M Add +3.5%
AVGO Broadcom Inc. 0.66% 2,927 $1.0M Reduce -2.5%
UBER Uber Technologies Inc. 0.61% 11,463 $937K Reduce -2.0%
IYW iShares Ustechnology ETF 0.60% 4,555 $910K Reduce -7.1%
AS Amer Sports Inc. 0.56% 22,971 $858K Add +19.1%
IVW iShares S&P 500 Growth ETF 0.55% 6,867 $846K Reduce -7.2%
BXP BXP Inc. 0.55% 12,418 $838K Reduce -7.0%
IEMG iShares Core MSCI Emerging 0.52% 11,782 $792K Reduce -7.2%
CVX Chevron Corp. 0.51% 5,108 $779K No change
AMD Advanced Micro Devices 0.44% 3,171 $679K Reduce -4.3%
MA Mastercard Inc. Class A 0.44% 1,165 $665K No change
VOX Vanguard Communication Servi 0.42% 3,331 $645K Reduce -12.3%
HNST The Honest Co. Inc. 0.40% 236,061 $609K No change
XLK SS Technology Select Sector 0.37% 3,876 $558K No change
VFH Vanguard Financials ETF 0.35% 4,045 $540K Reduce -6.3%
USMV iShares MSCI USA Min Vol Fac 0.35% 5,628 $530K Reduce -10.1%
SCUS Schwab Ultra-Short Inc. ETF 0.32% 19,483 $491K No change
AXP American Express Co. 0.31% 1,266 $468K No change
VHT Vanguard Health Care ETF 0.30% 1,613 $464K Reduce -10.6%
SCHO Schwab Short-Term US Treas 0.30% 18,624 $454K Reduce -10.2%
BSV Vanguard Short-Term Bond ETF 0.27% 5,245 $413K No change
IBIT iShares Bitcoin Trust ETF 0.27% 8,284 $411K Add +35.4%
BA The Boeing Co. 0.27% 1,878 $408K Reduce -4.1%
AMAT Applied Materials Inc. 0.26% 1,518 $390K Reduce -7.9%
IJH iShares Core S&P Midcap ETF 0.25% 5,811 $384K Reduce -8.9%
MCD McDonald's Corp. 0.24% 1,188 $363K Reduce -9.6%
DYNF Ishrs US E F R A ETF-Usd Inc. 0.23% 5,809 $353K Add +2.5%
IFRA iShares US Infrastructure 0.22% 6,472 $341K Reduce -9.1%
SDY SS SPDR S&P Dividend ETF 0.22% 2,440 $340K Reduce -0.3%
XLI SS Industrial Select Sector 0.22% 2,131 $331K No change
XLP SS Consumer Staples Sel Sect 0.20% 3,851 $299K Reduce -3.2%
ETHA iShares Ethereum Trust ETF 0.19% 12,892 $289K Reduce -1.1%
DIS The Walt Disney Co. filed as DISNEY WALT CO 0.18% 2,460 $280K Reduce -22.7%
PLTR Palantir Technologies Inc. Class A 0.18% 1,563 $278K New
DRI Darden Restaurants Inc. 0.18% 1,507 $277K Reduce -3.5%
SBUX Starbucks Corp. 0.17% 3,121 $263K New
QQQ Invesco QQQ Trust Series 1 0.17% 424 $260K Reduce -0.2%
IVE iShares S&P 500 Value ETF 0.16% 1,164 $247K Add +4.7%
NKE Nike Inc. Class B 0.16% 3,859 $246K Reduce -6.3%
GBTC Grayscale Bitcoin Trust ETF 0.16% 3,538 $242K No change
CBRE CBRE Group Inc. Class A 0.16% 1,482 $238K Reduce -14.2%
EWY iShares MSCI South Korea ETF 0.15% 2,378 $231K Reduce -14.2%
RIOT Riot Platforms Inc. 0.14% 16,666 $211K Reduce -10.1%

Portfolio Sells Q3 2025 → Q4 2025

JPST JPMorgan Ultra-Short Income Reduce -7.2% 13.57% −1.33
META Meta Platforms Inc. Class A Reduce -2.4% 3.28% −0.52
T AT&T Inc. Sold out 0.00% −0.47
IWF iShares Russell 1000 Growth Reduce -9.8% 2.73% −0.31
HD Home Depot Inc. Reduce -8.9% 0.84% −0.26
ORLY O'reilly Automotive Inc. Reduce -4.7% 0.75% −0.19
IWD iShares Russell 1000 Value E Reduce -9.6% 2.07% −0.18
VOT Vngrd Mrngstr MC GRW ETF-Usd Reduce -7.5% 1.06% −0.16
MSFT Microsoft Corp. Reduce -0.8% 1.68% −0.16
COST Costco Wholesale Corp. Reduce -2.4% 1.31% −0.15
PINS Pinterest Inc. Class A Sold out 0.00% −0.15
UBER Uber Technologies Inc. Reduce -2.0% 0.61% −0.15
PANW Palo Alto Networks Inc. Reduce -1.8% 0.93% −0.13
BXP BXP Inc. Reduce -7.0% 0.55% −0.11
VOE Vngrd Mrngstr MD-Cap Val ETF Reduce -8.4% 1.06% −0.10
RIOT Riot Platforms Inc. Reduce -10.1% 0.14% −0.10
EFG iShares MSCI Eafe Growth ETF Reduce -9.7% 0.74% −0.09
QUAL iShares MSCI USA Quality Fac Reduce -8.3% 1.07% −0.09
CAVA Cava Group Inc. Reduce -5.9% 0.80% −0.09
CRWD CrowdStrike Holdings Inc. Class A Reduce -1.9% 1.06% −0.09
ETHA iShares Ethereum Trust ETF Reduce -1.1% 0.19% −0.08
VGT Vanguard Info Tech ETF Reduce -7.1% 1.00% −0.08
NVDA Nvidia Corp. Reduce -0.8% 3.38% −0.08
EFV iShares MSCI Eafe Value ETF Reduce -11.2% 0.87% −0.07
DIS The Walt Disney Co. Reduce -22.7% 0.18% −0.06
BRK.B Berkshire Hathaway Inc. Class B Reduce -1.6% 1.77% −0.06
CMG Chipotle Mexican Grill Inc. Reduce -0.4% 0.68% −0.05
VOX Vanguard Communication Servi Reduce -12.3% 0.42% −0.05
USMV iShares MSCI USA Min Vol Fac Reduce -10.1% 0.35% −0.05
IYW iShares Ustechnology ETF Reduce -7.1% 0.60% −0.04
JEPI JPMorgan Equity Premium Inco Reduce -2.4% 1.07% −0.04
IVW iShares S&P 500 Growth ETF Reduce -7.2% 0.55% −0.04
SCHO Schwab Short-Term US Treas Reduce -10.2% 0.30% −0.04
IEMG iShares Core MSCI Emerging Reduce -7.2% 0.52% −0.04
NKE Nike Inc. Class B Reduce -6.3% 0.16% −0.03
MCD McDonald's Corp. Reduce -9.6% 0.24% −0.03
JPM JPMorgan Chase & Co. Reduce -2.1% 1.82% −0.03
IFRA iShares US Infrastructure Reduce -9.1% 0.22% −0.03
IJH iShares Core S&P Midcap ETF Reduce -8.9% 0.25% −0.03
CBRE CBRE Group Inc. Class A Reduce -14.2% 0.16% −0.03
VFH Vanguard Financials ETF Reduce -6.3% 0.35% −0.02
DRI Darden Restaurants Inc. Reduce -3.5% 0.18% −0.02
BA The Boeing Co. Reduce -4.1% 0.27% −0.01
XLP SS Consumer Staples Sel Sect Reduce -3.2% 0.20% −0.01
VHT Vanguard Health Care ETF Reduce -10.6% 0.30% −0.01
SDY SS SPDR S&P Dividend ETF Reduce -0.3% 0.22% −0.01
V Visa Inc. Class A Reduce -1.2% 0.77% −0.00
QQQ Invesco QQQ Trust Series 1 Reduce -0.2% 0.17% +0.00
EWY iShares MSCI South Korea ETF Reduce -14.2% 0.15% +0.00
AVGO Broadcom Inc. Reduce -2.5% 0.66% +0.00

Portfolio Buys Q3 2025 → Q4 2025

GSST Goldman Sachs Ultra Short Bo Add +264.4% 4.17% +3.00
GLW Corning Inc. New 0.81% +0.81
CEG Constellation Energy Add +27.5% 0.73% +0.19
PLTR Palantir Technologies Inc. Class A New 0.18% +0.18
SBUX Starbucks Corp. New 0.17% +0.17
DOV Dover Corp. Add +4.6% 0.72% +0.12
AS Amer Sports Inc. Add +19.1% 0.56% +0.12
IBKR Interactive Brokers Gro Class A Add +11.2% 0.91% +0.02
TSLA Tesla Inc. Add +1.5% 1.73% +0.02
IVE iShares S&P 500 Value ETF Add +4.7% 0.16% +0.01
DYNF Ishrs US E F R A ETF-Usd Inc. Add +2.5% 0.23% +0.01
IBIT iShares Bitcoin Trust ETF Add +35.4% 0.27% +0.00
ETN Eaton Corp. PLC Add +3.5% 0.67% −0.10
BABA Alibaba Group Holding-SP ADR Add +5.6% 0.82% −0.14

All Filings

QuarterPositions13F Reported ValueTop Holdings
Q2 2026 90$166.1MJPST, AAPL, GSST, AMZN, GOOG
Q1 2026 88$149.1MJPST, AAPL, GSST, AMZN, GOOG
Q4 2025 88$152.8MJPST, AAPL, AMZN, GSST, GOOG
Q3 2025 87$150.4MJPST, AAPL, AMZN, META, NVDA
Q2 2025 84$137.5MJPST, AAPL, AMZN, META, NVDA
Q1 2025 86$126.2MJPST, AAPL, AMZN, META, IWF
Q4 2024 322$142.6MJPST, AAPL, AMZN, META, IWF
Q3 2024 84$117.6MJPST, AAPL, AMZN, META, IWF