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Mainstreet Investment Advisors LLC

CIK:0001729854
Investment Adviser
$5B AUM
154 holdings
Chicago, IL, United States
Founded:2018
22 employees
Latest filing:Jun 30, 2025

MainStreet Investment Advisors LLC partners with wealth advisors to deliver tailored investment solutions including Direct Indexing, SMAs, and Fund Allocation Portfolios, along with research and advisory services. The firm’s Equity Team focuses on security selection and risk management for individual equity strategies such as U.S. large cap core, dividend income, sustainable investing, and U.S. All Cap, emphasizing quality, low turnover, and a high-concentration portfolio (30-50 holdings). Their process prioritizes balance sheet strength, full-cycle profitability, cash flow-based valuation, and business model durability, regularly reviewing macroeconomic impacts and style factor exposures.

Investment Strategy

Focuses on active, concentrated equity investing—primarily U.S. large cap core, dividend income, sustainable investing, and U.S. All Cap strategies. Emphasizes security selection over sector allocation, with a disciplined risk management process, quality bias, low turnover, and integration of Morningstar’s research for company and industry analysis. Strategies are designed for long-term performance driven by stock picking and risk control.

Top Buys
M
MSFTMicrosoft Corp
+$8.7M
A
AVGOBroadcom Inc
+$4.1M
V
VGSHVanguard Short-Term Treasury E
+$4.0M
N
NVDANVIDIA Corp
+$4.0M
V
VGITVanguard Intermediate-Term Tre
+$3.4M
Top Sells
A
AAPLApple Inc
-$3.7M
U
UNHUnitedHealth Group Inc
-$2.5M
J
JJacobs Solutions Inc
-$2.0M
P
PEPPepsiCo Inc
-$1.9M
A
ABBVAbbVie Inc
-$1.8M

Top Holdings

I
IJHiShares Core S&P Mid-Cap ETF
+6.2%$45.0M
E
EFAiShares MSCI EAFE ETF
+5.9%$42.7M
M
MSFTMicrosoft Corp
+5.6%$40.7M
A
AAPLApple Inc
+4.5%$32.5M
V
VGSHVanguard Short-Term Treasury E
+4.2%$30.2M

Equity Positions (154)

TickerSecurityWeightMarket ValueSharesAvg CostPriceChange (QoQ)
I
IJH
iShares Core S&P Mid-Cap ETF6.22%$45.0M725,169$53.05$62.02+$676.0K
E
EFA
iShares MSCI EAFE ETF5.91%$42.7M477,601$69.55$89.39+$1.4M
M
MSFT
Microsoft Corp5.62%$40.7M81,733$111.51$497.41+$8.7M
A
AAPL
Apple Inc4.50%$32.5M158,474$50.38$205.17-$3.7M
V
VGSH
Vanguard Short-Term Treasury E4.18%$30.2M514,496$58.04$58.78+$4.0M

Industry Allocation

SERVICES-PREPACKAGED SOFTWARE
+7.4%
SECURITY BROKERS, DEALERS & FLOTATION COMPANIES
+6.9%
SEMICONDUCTORS & RELATED DEVICES
+4.9%
ELECTRONIC COMPUTERS
+4.5%
NATIONAL COMMERCIAL BANKS
+4.4%