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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
+37.04%
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
$2.12B
AUM Growth
+$400M
Cap. Flow
-$6.17M
Cap. Flow %
-0.29%
Top 10 Hldgs %
48.91%
Holding
161
New
13
Increased
64
Reduced
53
Closed
21

Top Buys

Rank Stock Value
1
ROST icon
Ross Stores
ROST
+$33.9M
2
FTI icon
TechnipFMC
FTI
+$29.3M
3
BCS icon
Barclays
BCS
+$18.6M
4
ISCF icon
iShares International Small Cap Equity Factor ETF
ISCF
+$3.04M
5
TSM icon
TSMC
TSM
+$2.14M

Top Sells

Rank Stock Value
1
GLDM icon
SPDR Gold MiniShares Trust
GLDM
+$43.5M
2
MCK icon
McKesson
MCK
+$31.2M
3
PLTR icon
Palantir
PLTR
+$21.3M
4
IBIT icon
iShares Bitcoin Trust
IBIT
+$7.53M
5
PANW icon
Palo Alto Networks
PANW
+$2.44M

Sector Composition

Rank Sector Weight
1 Technology 42.89%
2 Financials 9.02%
3 Communication Services 7.71%
4 Industrials 6.2%
5 Healthcare 5.5%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
HOOD icon
126
Robinhood
HOOD
$77.7B
$259K 0.01%
2,581
-709
-22% -$59.4K
IT icon
127
Gartner
IT
$10.2B
$258K 0.01%
1,991
-124
-6% -$18.7K
PACB icon
128
Pacific Biosciences
PACB
$460M
$256K 0.01%
152,100
– –
QCOM icon
129
Qualcomm
QCOM
$160B
$254K 0.01%
+1,375
New +$257K
NSC icon
130
Norfolk Southern
NSC
$75B
$254K 0.01%
806
-71
-8% -$21.9K
LNG icon
131
Cheniere Energy
LNG
$54.1B
$241K 0.01%
1,010
– –
ABEO icon
132
Abeona Therapeutics
ABEO
$369M
$238K 0.01%
+38,514
New +$211K
CI icon
133
Cigna
CI
$76.1B
$233K 0.01%
846
+75
+10% +$21.2K
ABT icon
134
Abbott
ABT
$183B
$226K 0.01%
2,493
-1,366
-35% -$125K
HIMS icon
135
Hims & Hers Health
HIMS
$6.26B
$215K 0.01%
+6,200
New +$166K
AON icon
136
Aon
AON
$78.3B
$208K 0.01%
628
+6
+1% +$1.94K
PHG icon
137
Philips
PHG
$25.8B
$208K 0.01%
7,655
-40
-0.5% -$1.06K
KO icon
138
Coca-Cola
KO
$381B
$208K 0.01%
+2,558
New +$202K
DDOG icon
139
Datadog
DDOG
$95.6B
$206K 0.01%
+791
New +$147K
TMC icon
140
TMC The Metals Company
TMC
$1.57B
$44.3K ﹤0.01%
10,000
– –
ACN icon
141
Accenture
ACN
$99.9B
– –
-1,683
Closed -$334K
ADBE icon
142
Adobe
ADBE
$98.5B
– –
-1,005
Closed -$244K
AXP icon
143
American Express
AXP
$228B
– –
-773
Closed -$234K
BSX icon
144
Boston Scientific
BSX
$68.4B
– –
-5,993
Closed -$376K
COF icon
145
Capital One
COF
$129B
– –
-1,180
Closed -$215K
COIN icon
146
Coinbase
COIN
$43.1B
– –
-1,550
Closed -$271K
COP icon
147
ConocoPhillips
COP
$145B
– –
-1,950
Closed -$257K
DIS icon
148
Walt Disney
DIS
$167B
– –
-10,730
Closed -$1.03M
GLD icon
149
SPDR Gold Trust
GLD
$133B
– –
-1,806
Closed -$777K
GLDM icon
150
SPDR Gold MiniShares Trust
GLDM
$27.9B
– –
-469,451
Closed -$43.5M
3 4 5
6
7

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SFS
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Main Street Research's Q2 2026 Portfolio in Review

As of Q2 2026, Main Street Research held 161 positions worth $2.12B, up 23% from $1.72B the previous quarter. Its ten largest holdings account for 49% of the portfolio.

Main Street Research's Q2 2026 filing shows 13 new, 64 increased, 53 reduced and 21 closed positions. Its largest new stake was Ross Stores: 150,755 shares worth $32.1M. The largest sale was SPDR Gold MiniShares Trust, an estimated $43.5M.

By sector, the portfolio is most concentrated in Technology at 43% of assets, up from 38% a quarter earlier, followed by Financials and Communication Services.

  • Main Street Research's largest Q2 2026 buy was Ross Stores: 150,755 shares worth $32.1M.
  • Main Street Research added most to Barclays in Q2 2026, an estimated $18.6M increase.
  • Main Street Research's biggest Q2 2026 reduction was McKesson, cutting an estimated $31.2M.
  • Main Street Research fully exited SPDR Gold MiniShares Trust in Q2 2026, selling an estimated $43.5M.
  • Main Street Research's ten largest holdings make up 49% of its $2.12B portfolio in Q2 2026.
  • Main Street Research opened 13 new positions and closed 21 in Q2 2026.
  • Main Street Research's portfolio value rose 23% quarter-over-quarter to $2.12B.

Based on Main Street Research's 13F filing for Q2 2026, filed 29 Jul 2026.