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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
WMT icon
26
Walmart Inc
WMT
$858B
$32.8M 2.04%
335,746
+322,903
+2,514% +$30.8M
ISRG icon
27
Intuitive Surgical
ISRG
$133B
$32.3M 2.01%
59,513
-20,725
-26% -$10.8M
TSM icon
28
TSMC
TSM
$2.15T
$31.1M 1.94%
136,977
-38,029
-22% -$7.05M
CHKP icon
29
Check Point Software Technologies
CHKP
$14.1B
$30.3M 1.88%
+136,759
New +$30.1M
GLDM icon
30
SPDR Gold MiniShares Trust
GLDM
$31.5B
$29.4M 1.83%
+448,487
New +$29.2M
BKNG icon
31
Booking.com
BKNG
$129B
$27M 1.68%
116,700
-89,725
-43% -$18.4M
BABA icon
32
Alibaba
BABA
$272B
$26.1M 1.62%
+226,019
New +$26.8M
FICO icon
33
Fair Isaac
FICO
$21.3B
$19.6M 1.22%
10,724
+7,811
+268% +$14.7M
GEV icon
34
GE Vernova
GEV
$235B
$14.6M 0.91%
27,604
-16,929
-38% -$7.05M
ASML icon
35
ASML
ASML
$611B
$14M 0.87%
17,497
+16,982
+3,297% +$12.2M
MCD icon
36
McDonald's
MCD
$179B
$5.54M 0.35%
18,973
-706
-4% -$218K
ADSK icon
37
Autodesk
ADSK
$47.3B
$4.54M 0.28%
14,654
-100
-0.7% -$28.4K
TSLA icon
38
Tesla
TSLA
$1.41T
$3.75M 0.23%
11,800
-3,245
-22% -$978K
BRK.A icon
39
Berkshire Hathaway Class A
BRK.A
$1.1T
$3.64M 0.23%
5
-2
-29% -$1.52M
GOOG icon
40
Alphabet (Google) Class C
GOOG
$4.18T
$3.57M 0.22%
20,120
-1,096
-5% -$181K
URTH icon
41
iShares MSCI World ETF
URTH
$8.14B
$3.17M 0.2%
18,688
+183
+1% +$28.9K
SCHW
42
Charles Schwab
SCHW
$186B
$3.07M 0.19%
33,617
-1,799
-5% -$151K
PANW icon
43
Palo Alto Networks
PANW
$307B
$2.69M 0.17%
13,146
-650
-5% -$121K
XOM icon
44
ExxonMobil
XOM
$696B
$2.37M 0.15%
21,984
-229,721
-91% -$24.6M
LLY icon
45
Eli Lilly
LLY
$1.01T
$2.09M 0.13%
2,679
-660
-20% -$513K
IXUS icon
46
iShares Core MSCI Total International Stock ETF
IXUS
$59.3B
$1.97M 0.12%
+25,485
New +$1.86M
JNJ icon
47
Johnson & Johnson
JNJ
$644B
$1.73M 0.11%
11,300
-1,506
-12% -$231K
ABBV icon
48
AbbVie
ABBV
$465B
$1.69M 0.11%
9,102
-216
-2% -$40.1K
SPY icon
49
State Street SPDR S&P 500 ETF Trust
SPY
$799B
$1.66M 0.1%
2,671
+499
+23% +$285K
WFC icon
50
Wells Fargo
WFC
$271B
$1.47M 0.09%
18,382
-500
-3% -$36.1K
1
2
3 4 5

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OCM
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SP
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CWP
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CP
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PSC
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MWA
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GIC
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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.