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MSR

Main Street Research Portfolio holdings

AUM $2.12B
1-Year Est. Return 67.44%
This Fund
S&P 500
This Quarter Est. Return
+21.77%
1 Year Est. Return
+67.44%
3 Year Est. Return
+232.37%
5 Year Est. Return
+381.46%
10 Year Est. Return
+1,630.85%
AUM
$1.61B
AUM Growth
+$76.1M
Cap. Flow
-$156M
Cap. Flow %
-9.71%
Top 10 Hldgs %
39.62%
Holding
128
New
27
Increased
27
Reduced
51
Closed
13

Top Buys

Rank Stock Value
1
UBER icon
Uber
UBER
+$37M
2
SPOT icon
Spotify
SPOT
+$32M
3
HOOD icon
Robinhood
HOOD
+$31.8M
4
WMT icon
Walmart Inc
WMT
+$30.8M
5
TT icon
Trane Technologies
TT
+$30.1M

Top Sells

Rank Stock Value
1
PLTR icon
Palantir
PLTR
+$52.1M
2
ORCL icon
Oracle
ORCL
+$34.9M
3
PH icon
Parker-Hannifin
PH
+$33.4M
4
CAT icon
Caterpillar
CAT
+$32.2M
5
CSCO icon
Cisco
CSCO
+$31.9M

Sector Composition

Rank Sector Weight
1 Technology 31.33%
2 Financials 17.36%
3 Communication Services 15.08%
4 Consumer Staples 10.12%
5 Consumer Discretionary 9.54%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
ITOT icon
76
iShares Core S&P Total US Stock Market ETF
ITOT
$95.1B
$460K 0.03%
+3,405
New +$425K
CRM icon
77
Salesforce
CRM
$210B
$451K 0.03%
1,652
-5,066
-75% -$1.35M
CW icon
78
Curtiss-Wright
CW
$20.8B
$434K 0.03%
888
– –
HSBC icon
79
HSBC
HSBC
$350B
$425K 0.03%
+6,997
New +$398K
XYL icon
80
Xylem
XYL
$25.1B
$420K 0.03%
3,250
– –
RELX icon
81
RELX
RELX
$59.6B
$417K 0.03%
+7,666
New +$405K
ADI icon
82
Analog Devices
ADI
$175B
$416K 0.03%
+1,747
New +$364K
IBM icon
83
IBM
IBM
$234B
$406K 0.03%
1,377
-52
-4% -$13.4K
C icon
84
Citigroup
C
$228B
$393K 0.02%
4,618
-1,112
-19% -$80.4K
TMO icon
85
Thermo Fisher Scientific
TMO
$237B
$373K 0.02%
918
-336
-27% -$140K
HD icon
86
Home Depot
HD
$305B
$371K 0.02%
1,011
-243
-19% -$87.9K
CMCSA icon
87
Comcast
CMCSA
$86.7B
$370K 0.02%
10,372
– –
T icon
88
AT&T
T
$183B
$355K 0.02%
12,254
-3,439
-22% -$94.8K
SJM icon
89
J.M. Smucker
SJM
$13B
$348K 0.02%
3,539
– –
PEP icon
90
PepsiCo
PEP
$185B
$342K 0.02%
2,591
+300
+13% +$40.4K
VOO icon
91
Vanguard S&P 500 ETF
VOO
$1.04T
$337K 0.02%
591
-181
-23% -$95.1K
TXN icon
92
Texas Instruments
TXN
$241B
$326K 0.02%
1,569
-51
-3% -$9.05K
IWF icon
93
iShares Russell 1000 Growth ETF
IWF
$123B
$325K 0.02%
3,064
– –
HIMS icon
94
Hims & Hers Health
HIMS
$6.5B
$309K 0.02%
6,200
-900
-13% -$40.7K
ADBE icon
95
Adobe
ADBE
$102B
$304K 0.02%
786
-9
-1% -$3.47K
NSC icon
96
Norfolk Southern
NSC
$71.9B
$302K 0.02%
1,181
-401
-25% -$94.6K
ORCL icon
97
Oracle
ORCL
$404B
$298K 0.02%
1,363
-216,226
-99% -$34.9M
TRMB icon
98
Trimble
TRMB
$13.7B
$290K 0.02%
3,820
-3,180
-45% -$214K
DIA icon
99
State Street SPDR Dow Jones Industrial Average ETF Trust
DIA
$45.4B
$283K 0.02%
640
– –
PYPL icon
100
PayPal
PYPL
$46B
$282K 0.02%
+3,800
New +$260K
2 3
4
5 6

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PCM
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OCM
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SP
Stairway Partners Chicago, Illinois $2.12B AUM 17.37% 1-Year Est. Return
CWP
Cyndeo Wealth Partners St. Petersburg, Florida $2.12B AUM 24.61% 1-Year Est. Return
CP
Caligan Partners New York $2.13B AUM 758.65% 1-Year Est. Return
PSC
Portman Square Capital London, United Kingdom $2.11B AUM 19.71% 1-Year Est. Return
MWA
Midland Wealth Advisors Effingham, Illinois $2.13B AUM 17.72% 1-Year Est. Return
GIC
Generali Investments CEE Prague, Czech Republic $2.11B AUM 25.53% 1-Year Est. Return

Main Street Research's Q2 2025 Portfolio in Review

As of Q2 2025, Main Street Research held 128 positions worth $1.61B, up 5% from $1.53B the previous quarter. Its ten largest holdings account for 40% of the portfolio.

Main Street Research withdrew a net $156M in Q2 2025, closing 13 positions and reducing 51 holdings. Its most notable exit was Parker-Hannifin, an estimated $33.4M position sold in full.

By sector, the portfolio is most concentrated in Technology at 31% of assets, down from 32% a quarter earlier, followed by Financials and Communication Services.

Against the trend, Main Street Research opened a new position in Uber worth $41.9M.

  • Main Street Research's largest Q2 2025 buy was Uber: 449,335 shares worth $41.9M.
  • Main Street Research added most to Walmart Inc in Q2 2025, an estimated $30.8M increase.
  • Main Street Research's biggest Q2 2025 reduction was Palantir, cutting an estimated $52.1M.
  • Main Street Research fully exited Parker-Hannifin in Q2 2025, selling an estimated $33.4M.
  • Main Street Research's ten largest holdings make up 40% of its $1.61B portfolio in Q2 2025.
  • Main Street Research opened 27 new positions and closed 13 in Q2 2025.
  • Main Street Research's portfolio value rose 5% quarter-over-quarter to $1.61B.

Based on Main Street Research's 13F filing for Q2 2025, filed 5 Aug 2025.