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Mainstream Capital Management LLC

CIK:0002043084
Investment Adviser
$210M AUM
87 holdings
Los Angeles, CA, United States
Founded:2018
4 employees
Latest filing:Sep 30, 2025

Mainstream Capital Management LLC is a boutique wealth management and investment advisory firm headquartered in Los Angeles, California. Founded in 2018, the firm specializes in providing comprehensive financial planning, asset management, estate planning, and business consulting services for a select clientele, including individuals, families, and businesses. The team consists of approximately 4–5 employees. Mainstream Capital Management focuses on delivering customized solutions tailored to meet the unique financial goals and risk tolerances of its clients.

Investment Strategy

Mainstream Capital Management develops individualized financial plans and investment portfolios based on each client’s unique values and circumstances. Their approach incorporates tax coordination, wealth transfer, and philanthropy, aiming to grow and preserve wealth over the long term. Portfolio management combines asset allocation across diverse sectors and disciplines, and the firm manages both discretionary and non-discretionary accounts, primarily serving high-net-worth individuals and businesses. Mainstream Capital Management emphasizes a hands-on, client-focused philosophy with strategic attention to risk management, performance measurement, and holistic financial planning.

Top Buys
G
GSSTGOLDMAN SACHS ULTRA SHORT BOND ETF
+$1.8M
A
AAPLAPPLE INC COM
+$1.5M
G
GOOGALPHABET INC CAP STK CL C
+$1.4M
E
ETNEATON CORP PLC SHS
+$1.2M
U
UBERUBER TECHNOLOGIES INC COM
+$1.1M
Top Sells
U
UNHUNITEDHEALTH GROUP INC COM
-$1.0M
B
BXSLBLACKSTONE SECD LENDING FD COMMON STOCK
-$506.1K
C
CMGCHIPOTLE MEXICAN GRILL INC COM
-$465.0K
C
CAVACAVA GROUP INC COM
-$338.9K
H
HNSTHONEST CO INC COM
-$332.8K

Top Holdings

J
JPSTJPMORGAN ULTRA-SHORT INCOME ETF
+14.9%$22.4M
A
AAPLAPPLE INC COM
+6.1%$9.2M
A
AMZNAMAZON COM INC COM
+4.7%$7.1M
M
METAMETA PLATFORMS INC CL A
+3.8%$5.7M
N
NVDANVIDIA CORPORATION COM
+3.5%$5.2M

Equity Positions (87)

TickerSecurityWeightMarket ValueSharesAvg CostPriceChange (QoQ)
J
JPST
JPMORGAN ULTRA-SHORT INCOME ETF14.90%$22.4M441,798$50.59$50.73+$415.8K
A
AAPL
APPLE INC COM6.12%$9.2M36,132$233.00$254.63+$1.5M
A
AMZN
AMAZON COM INC COM4.72%$7.1M32,345$187.08$219.57+$165.5K
M
META
META PLATFORMS INC CL A3.79%$5.7M7,766$572.44$734.38-$45.0K
N
NVDA
NVIDIA CORPORATION COM3.46%$5.2M27,863$122.68$186.58+$893.1K

Industry Allocation

SERVICES-COMPUTER PROGRAMMING, DATA PROCESSING, ETC.
+12.2%
ELECTRONIC COMPUTERS
+6.1%
RETAIL-CATALOG & MAIL-ORDER HOUSES
+5.3%
SEMICONDUCTORS & RELATED DEVICES
+4.7%
SERVICES-PREPACKAGED SOFTWARE
+4.0%