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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
-0.43%
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
$1.53B
AUM Growth
-$74.6M
Cap. Flow
-$20.6M
Cap. Flow %
-1.34%
Top 10 Hldgs %
41.01%
Holding
124
New
14
Increased
40
Reduced
38
Closed
23

Top Buys

Rank Stock Value
1
NFLX icon
Netflix
NFLX
+$39.3M
2
BSX icon
Boston Scientific
BSX
+$36.8M
3
SAP icon
SAP
SAP
+$32.6M
4
FTNT icon
Fortinet
FTNT
+$32.3M
5
CSCO icon
Cisco
CSCO
+$32M

Top Sells

Rank Stock Value
1
IWM icon
iShares Russell 2000 ETF
IWM
+$62.4M
2
IR icon
Ingersoll Rand
IR
+$33.1M
3
RF icon
Regions Financial
RF
+$33M
4
CB icon
Chubb
CB
+$32.9M
5
ANET icon
Arista Networks
ANET
+$31.6M

Sector Composition

Rank Sector Weight
1 Technology 31.91%
2 Financials 16.11%
3 Communication Services 12.72%
4 Healthcare 9.8%
5 Consumer Discretionary 9%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
AAPL icon
1
Apple
AAPL
$4.54T
$83M 5.42%
373,561
+3,983
+1% +$923K
PLTR icon
2
Palantir
PLTR
$295B
$76.4M 4.99%
905,633
+7,913
+0.9% +$695K
PG icon
3
Procter & Gamble
PG
$336B
$67.7M 4.42%
397,082
+11,269
+3% +$1.89M
V icon
4
Visa
V
$684B
$60.1M 3.92%
171,366
+3,338
+2% +$1.13M
AMZN icon
5
Amazon
AMZN
$2.92T
$59.4M 3.88%
312,450
+5,502
+2% +$1.19M
META icon
6
Meta Platforms (Facebook)
META
$1.42T
$59.4M 3.88%
103,000
+3,341
+3% +$2.16M
BRK.B icon
7
Berkshire Hathaway Class B
BRK.B
$1.1T
$59.3M 3.88%
111,420
+1,986
+2% +$966K
COST icon
8
Costco
COST
$422B
$58.6M 3.83%
61,955
+663
+1% +$646K
JPM icon
9
JPMorgan Chase
JPM
$935B
$53.6M 3.51%
218,675
+3,950
+2% +$1.01M
MSFT icon
10
Microsoft
MSFT
$3.45T
$50.2M 3.28%
133,621
+3,859
+3% +$1.57M
NVDA icon
11
NVIDIA
NVDA
$4.86T
$48.5M 3.17%
447,769
-171,280
-28% -$21.7M
TMUS icon
12
T-Mobile US
TMUS
$185B
$47.4M 3.1%
177,902
+1,788
+1% +$441K
MCK icon
13
McKesson
MCK
$100B
$46.3M 3.02%
68,656
+852
+1% +$527K
AVGO icon
14
Broadcom
AVGO
$1.85T
$44.5M 2.91%
265,850
+13,426
+5% +$2.84M
GOOGL icon
15
Alphabet (Google) Class A
GOOGL
$4.36T
$44.4M 2.9%
287,165
+6,127
+2% +$1.11M
ISRG icon
16
Intuitive Surgical
ISRG
$127B
$39.7M 2.6%
80,238
+707
+0.9% +$391K
NFLX icon
17
Netflix
NFLX
$299B
$38.9M 2.54%
417,020
+413,050
+10,404% +$39.3M
BKNG icon
18
Booking.com
BKNG
$149B
$38M 2.49%
206,425
+1,325
+0.6% +$253K
BSX icon
19
Boston Scientific
BSX
$69.5B
$37.6M 2.46%
372,775
+365,180
+4,808% +$36.8M
PH icon
20
Parker-Hannifin
PH
$123B
$33.4M 2.18%
54,903
+1,533
+3% +$1M
LIN icon
21
Linde
LIN
$221B
$32.7M 2.14%
70,291
+3,775
+6% +$1.7M
CSCO icon
22
Cisco
CSCO
$457B
$32.7M 2.14%
530,296
+519,298
+4,722% +$32M
CAT icon
23
Caterpillar
CAT
$375B
$32.5M 2.12%
98,562
+2,076
+2% +$739K
IBN icon
24
ICICI Bank
IBN
$108B
$32.3M 2.11%
1,023,271
+20,212
+2% +$586K
SAP icon
25
SAP
SAP
$212B
$32.2M 2.1%
+119,768
New +$32.6M
1
2 3 4 5

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BCM
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EF
Empirical Finance Havertown, Pennsylvania $2.13B AUM 29.56% 1-Year Est. Return
IVAV
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HJGA
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CF
Centaurus Financial Anaheim, California $2.1B AUM 21.28% 1-Year Est. Return
BWC
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SFS
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Main Street Research's Q1 2025 Portfolio in Review

As of Q1 2025, Main Street Research held 124 positions worth $1.53B, down 4.6% from $1.6B the previous quarter. Its ten largest holdings account for 41% of the portfolio.

Main Street Research's Q1 2025 filing shows 14 new, 40 increased, 38 reduced and 23 closed positions. Its largest new stake was SAP: 119,768 shares worth $32.2M. The largest sale was iShares Russell 2000 ETF, an estimated $62.4M.

By sector, the portfolio is most concentrated in Technology at 32% of assets, down from 34% a quarter earlier, followed by Financials and Communication Services.

  • Main Street Research's largest Q1 2025 buy was SAP: 119,768 shares worth $32.2M.
  • Main Street Research added most to Netflix in Q1 2025, an estimated $39.3M increase.
  • Main Street Research's biggest Q1 2025 reduction was NVIDIA, cutting an estimated $21.7M.
  • Main Street Research fully exited iShares Russell 2000 ETF in Q1 2025, selling an estimated $62.4M.
  • Main Street Research's ten largest holdings make up 41% of its $1.53B portfolio in Q1 2025.
  • Main Street Research opened 14 new positions and closed 23 in Q1 2025.
  • Main Street Research's portfolio value fell 4.6% quarter-over-quarter to $1.53B.

Based on Main Street Research's 13F filing for Q1 2025, filed 30 Apr 2025.