Mainstream Capital Management provides financial planning, portfolio management for individuals and small businesses, portfolio management for institutions, education planning, estate planning, insurance, tax planning, and tax preparation. Financial planning was provided to 101–250 clients last fiscal year.
Mainstream Capital Management reports 170 clients. They include 110 individual clients and 60 high-net-worth individuals. Of its assets, 100.0% ($224M across 175 accounts) are managed with discretion.
| Client type | Clients | Assets |
|---|---|---|
| Individuals (other than HNW) | 65% | 13% |
| High-net-worth individuals | 35% | 84% |
| Pension and profit-sharing plans | Fewer than 5 | <1% |
| Corporations and other businesses | Fewer than 5 | 2% |
Client shares use reported counts. Client types without a reported count are excluded from that total.
Client breakdown and activity details
| Client type | Clients | Regulatory AUM | AUM share | Avg. per client |
|---|---|---|---|---|
| Individuals (other than HNW) | 110 | $29.1M | 13.0% | $265K |
| High-net-worth individuals | 60 | $189M | 84.5% | $3.15M |
| Pension and profit-sharing plans | Fewer than 5 | $661K | 0.3% | — |
| Corporations and other businesses | Fewer than 5 | $5.01M | 2.2% | — |
| Total | 170 | $224M | 100% | — |
- Clients
- 110
- Regulatory AUM
- $29.1M
- AUM share
- 13.0%
- Avg. per client
- $265K
- Clients
- 60
- Regulatory AUM
- $189M
- AUM share
- 84.5%
- Avg. per client
- $3.15M
- Clients
- Fewer than 5
- Regulatory AUM
- $661K
- AUM share
- 0.3%
- Avg. per client
- —
- Clients
- Fewer than 5
- Regulatory AUM
- $5.01M
- AUM share
- 2.2%
- Avg. per client
- —
Total
- Clients
- 170
- Regulatory AUM
- $224M
- AUM share
- 100%
- Avg. per client
- —
- Clients outside the U.S.
- 0%
- Clients advised without assets under management last fiscal year
- 0
- Private funds advised
- 0
- Financial planning clients last fiscal year
- 101–250
Mainstream Capital Management charges 0.75%–1.50% a year for its Portfolio Management. The fee is billed in advance and is negotiable. The brochure also prices one other service, listed under fee details.
Fee details and sources
Other fees
- Financial Planning
- Financial planning is a flat fee negotiated case by case, generally $1,000 to $5,000; the estimate uses an expected hourly rate of $300.
Dixon Karmindro owns 50% to 75% of Mainstream Capital Management. The leadership team of Mainstream Capital Management includes Chief Compliance Officer Dixon Karmindro. It has 4 employees, 2 of them in advisory roles.
Leadership
- Dixon KarmindroPrincipal/Chief Compliance Officer/Managing Partner
- Kyongjin LeePartner
Investment adviser representatives
2 representatives listed in the SEC register as of 9 October 2026.
Staff
- 4 employees
- 2 in advisory functions
- 2 state-registered reps
- 1 broker-dealer rep
- 1 insurance agent
- Owns 50% to 75% of Mainstream Capital Management LLC
Dixon Karmindro
Control person · since December 2022
- Owns 50% to 75% of Mainstream Capital Management LLC
Kyongjin Lee
Control person · since December 2022
Mainstream Capital Management’s regulatory assets went from $229M (May 2022) to $224M (March 2026); clients fell from 180 to 170 and employees from 5 to 4.
Figures from each annual filing
| Filed | Regulatory AUM | Clients | Employees | Offices |
|---|---|---|---|---|
| March 2026 | $224M | 170 | 4 | 1 |
| February 2025 | $210M | 190 | 4 | 1 |
| April 2024 | $192M | 227 | 4 | 1 |
| April 2023 | $186M | 176 | 5 | 1 |
| May 2022 | $229M | 180 | 5 | 1 |
Besides its headquarters, Mainstream Capital Management has 0 offices, with 1 listed address in California.
California · 1 listed address
- 3435 Wilshire BLVD, 1100, Los AngelesHQ
Other business names
Mainstream Capital Management has reported 1 other business name to the SEC.
- Mainstream Capital Management
Contact and registration details
- Legal name
- Mainstream Capital Management LLC
- Headquarters
- 3435 Wilshire BLVD, 1100, Los Angeles, CA 90010
- Website
- mainstreamcapital.com
- Phone
- 213-365-6773
- SEC file
- 801-122460
- Founded
- 2018
- Structure
- Delaware LLC
- Fiscal year end
- December
Mainstream Capital Management uses Raymond James ($161M, 73%) and Charles Schwab ($59.1M, 27%) as custodians for its separately managed accounts. Mainstream Capital Management does not have custody of client assets.
- Charles SchwabCharles Schwab & Co., Inc. · Westlake, TX · $59.1M27%
- Raymond JamesRaymond James & Associates, Inc. · St. Petersburg, FL · $161M73%
At year end, Mainstream Capital Management’s separately managed accounts were largely in funds (39%) and stocks (38%). Its reported 13F holdings for the quarter ended 30 June 2026 total $166M across 90 positions; the largest are JPMORGAN Ultra-short Income ETF (12.2%), Apple Inc. (5.9%) and Goldman Sachs Ultra Short Bond ETF (5.7%).
What the accounts hold
- Stocks38%
- Funds39%
- Bonds19%
- U.S. government and agency bonds9%
- State and local bonds9%
- Investment grade corporate bonds1%
- Cash4%
Reported 13F holdings
- $166M
- Reported 13F value
- 90
- Positions
- 45.4%
- In the 10 largest
- +11.4%
- Value vs. prior quarter
- JPMORGAN Ultra-short Income ETFETF12.2%
- Apple Inc.5.9%
- Goldman Sachs Ultra Short Bond ETFETF5.7%
- Amazon Com Inc.4.4%
- Alphabet Inc. Cap Stk CL C4.3%
- Nvidia Corporation3.3%
- iShares Russell 1000 Growth ETFETF2.6%
- Meta Platforms Inc. CL A2.5%
- Corning Inc.2.2%
- iShares Russell 1000 Value ETFETF2.1%
Together, the ten largest are 45.4% of reported value.
How many clients does Mainstream Capital Management have?
Mainstream Capital Management has 170 clients and manages $224 million for them, as of March 2026. They include 110 individual clients and 60 high-net-worth individuals.
Source: Form ADV Part 1A, Items 5.D and 5.F, filed 18 March 2026
What services does Mainstream Capital Management offer?
Mainstream Capital Management provides financial planning, portfolio management for individuals and small businesses, portfolio management for institutions, education planning, estate planning, insurance, tax planning, and tax preparation.
Source: Form ADV Part 1A, Item 5.G, from the SEC's 2 October 2026 data file; Part 2A brochure, Item 4
How much does Mainstream Capital Management charge?
Mainstream Capital Management charges 0.75%–1.50% a year for its Portfolio Management. The fee is billed in advance and is negotiable.
Source: MAINSTREAM CAPITAL MANAGEMENT (03/31/2026), filed 18 March 2026
Which custodians does Mainstream Capital Management use?
Mainstream Capital Management’s separately managed account assets are held at Raymond James & Associates, Inc. (St. Petersburg, FL), with $161M and Charles Schwab & Co., Inc. (Westlake, TX), with $59.1M. Only custodians holding at least a tenth of those assets are named.
Source: Form ADV Part 1A, Schedule D, Section 5.K.(3), filed 18 March 2026
How many financial advisors does Mainstream Capital Management have?
Mainstream Capital Management has 2 investment adviser representatives registered with state securities authorities, out of 4 employees, and 2 perform investment advisory functions. 1 employee is a registered representative of a broker-dealer and 1 employee is a licensed insurance agent.
Source: Form ADV Part 1A, Items 5.A and 5.B, from the SEC's 2 October 2026 data file
What does Mainstream Capital Management invest in?
At the end of its last fiscal year, Mainstream Capital Management’s separately managed accounts held 39% registered funds (mutual funds, ETFs, BDCs), 38% exchange-traded equities, 9% U.S. government and agency bonds, 9% state and local bonds, 4% cash and equivalents and 1% investment grade corporate bonds.
Source: Form ADV Part 1A, Items 5.K.(1) and 7.B, from the SEC's 2 October 2026 data file
Who owns Mainstream Capital Management?
Mainstream Capital Management’s direct owners are Dixon Karmindro (50% to 75%) and Kyongjin Lee (50% to 75%).
Source: Form ADV Part 1A, Schedules A and B, filed 18 March 2026
How does Mainstream Capital Management get paid?
Mainstream Capital Management is paid through a percentage of assets under management and fixed fees. Its Form ADV lists no commissions or performance-based fees among how it is paid.
Source: Form ADV Part 1A, Item 5.E, from the SEC's 2 October 2026 data file
How do I contact Mainstream Capital Management?
Mainstream Capital Management’s main office is at 3435 Wilshire BLVD, 1100, Los Angeles, CA 90010. Its phone number is 213-365-6773. Its website is mainstreamcapital.com.