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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
C icon
76
Citigroup
C
$226B
$407K 0.03%
5,730
– –
VOO icon
77
Vanguard S&P 500 ETF
VOO
$1.01T
$397K 0.03%
772
-700
-48% -$378K
XYL icon
78
Xylem
XYL
$28.2B
$388K 0.03%
3,250
– –
CMCSA icon
79
Comcast
CMCSA
$90.3B
$383K 0.03%
10,372
– –
NSC icon
80
Norfolk Southern
NSC
$75.8B
$375K 0.02%
1,582
-5
-0.3% -$1.22K
MA icon
81
Mastercard
MA
$492B
$373K 0.02%
680
+116
+21% +$63.1K
QQQ icon
82
Invesco QQQ Trust
QQQ
$482B
$371K 0.02%
790
-239
-23% -$121K
SCHI icon
83
Schwab 5-10 Year Corporate Bond ETF
SCHI
$11.5B
$357K 0.02%
15,904
-492
-3% -$10.9K
IBM icon
84
IBM
IBM
$222B
$355K 0.02%
1,429
-230
-14% -$56.3K
PEP icon
85
PepsiCo
PEP
$190B
$344K 0.02%
2,291
-421
-16% -$62.7K
KO icon
86
Coca-Cola
KO
$375B
$343K 0.02%
4,748
+1,192
+34% +$79.6K
ASML icon
87
ASML
ASML
$665B
$341K 0.02%
515
-49
-9% -$35.6K
USFR icon
88
WisdomTree Floating Rate Treasury Fund
USFR
$18.4B
$330K 0.02%
+6,561
New +$331K
IGLB icon
89
iShares 10+ Year Investment Grade Corporate Bond ETF
IGLB
$2.84B
$327K 0.02%
6,505
-128
-2% -$6.39K
ADBE icon
90
Adobe
ADBE
$106B
$305K 0.02%
795
-90
-10% -$38.6K
TXN icon
91
Texas Instruments
TXN
$260B
$291K 0.02%
1,620
-490
-23% -$91.7K
CW icon
92
Curtiss-Wright
CW
$25.6B
$282K 0.02%
888
– –
IWF icon
93
iShares Russell 1000 Growth ETF
IWF
$127B
$277K 0.02%
3,064
-276
-8% -$27.2K
DIA icon
94
State Street SPDR Dow Jones Industrial Average ETF Trust
DIA
$46.4B
$269K 0.02%
640
-124
-16% -$53.6K
AON icon
95
Aon
AON
$76B
$248K 0.02%
622
-98
-14% -$37.6K
BX icon
96
Blackstone
BX
$110B
$235K 0.02%
1,682
+381
+29% +$61.8K
LNG icon
97
Cheniere Energy
LNG
$54.3B
$233K 0.02%
1,008
-52
-5% -$11.7K
QCOM icon
98
Qualcomm
QCOM
$176B
$228K 0.01%
+1,485
New +$242K
HIMS icon
99
Hims & Hers Health
HIMS
$7.24B
$210K 0.01%
+7,100
New +$264K
JAAA icon
100
Janus Henderson AAA CLO ETF
JAAA
$29.2B
$205K 0.01%
+4,034
New +$205K
1 2 3
4
5

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BCM
Basswood Capital Management New York $2.12B AUM 19.53% 1-Year Est. Return
EF
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IVAV
Index Venture Associates VI St. Helier, Channel Islands, Jersey $2.11B AUM 13.76% 1-Year Est. Return
HJGA
Hardman Johnston Global Advisors Stamford, Connecticut $2.1B AUM 41.89% 1-Year Est. Return
CF
Centaurus Financial Anaheim, California $2.1B AUM 21.28% 1-Year Est. Return
BWC
Blue Whale Capital London, United Kingdom $2.1B AUM 97.03% 1-Year Est. Return
SFS
Strategic Financial Services Utica, New York $2.1B AUM 19.14% 1-Year Est. Return
AAP
Aristotle Atlantic Partners Sarasota, Florida $2.14B AUM 37.01% 1-Year Est. Return

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.