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Asset Manager ← All Institutions

Main Street Research LLC

342 MAIN STREET, LAKEVILLE, CT 06039 • 860-435-2350

Q3 2025 · Filed 2025-11-13
Market Value
$1.9B
+15.2%
Holdings
135
+9
New Purchases
20
Added To
70
Closed
6
Reduced
20
Top 10 Concentration
42.6%
Turnover
19.3%

Top Buys (by % of Portfolio)

SymbolCur %Prior %Chg %Value
ISCF 3.32% 0.00% +3.32% $61M
APH 1.99% 0.00% +1.99% $37M
BCS 1.89% 0.00% +1.89% $35M
MSFT 4.71% 2.93% +1.77% $87M
CCJ 1.65% 0.00% +1.65% $31M
APO 1.56% 0.00% +1.56% $29M
TSM 3.33% 1.94% +1.40% $62M
ASML 2.11% 0.87% +1.24% $39M
AAPL 4.83% 3.76% +1.07% $89M
HOOD 4.17% 3.13% +1.04% $77M
GEV 1.62% 0.91% +0.71% $30M
GOOGL 3.94% 3.26% +0.68% $73M
IBIT 0.67% 0.00% +0.67% $12M
META 3.54% 2.92% +0.61% $65M
PLTR 4.49% 3.92% +0.57% $83M

Top Sells (by % of Portfolio)

SymbolCur %Prior %Chg %Value
BRK-B 0.36% 3.51% -3.15% $7M
PG 1.27% 4.04% -2.77% $23M
BSX 0.03% 2.55% -2.52% $629K
SAP 0.00% 2.29% -2.29% $0
ISRG 0.00% 2.01% -2.01% $0
CHKP 0.00% 1.88% -1.88% $0
BABA 0.00% 1.62% -1.62% $0
NFLX 2.78% 3.55% -0.77% $51M
COST 3.17% 3.87% -0.70% $59M
MELI 2.00% 2.56% -0.56% $37M
V 3.27% 3.81% -0.54% $60M
FICO 0.70% 1.22% -0.52% $13M
SPOT 1.90% 2.38% -0.48% $35M
IBN 1.72% 2.18% -0.46% $32M
TMUS 2.33% 2.66% -0.33% $43M

Sector Allocation Over Time

Industry Breakdown

IndustryWeight
Technology 37.8%
Financial Services 24.1%
Healthcare 8.8%
Communication Services 8.1%
Consumer Defensive 6.6%

Market Cap Concentration

TierHoldingsValueWeight
Mega Cap 55 $1.2B 65.0%
Large Cap 72 $581M 31.4%
Mid Cap 6 $5M 0.3%
Small Cap 2 $62M 3.3%

Portfolio Analytics

Avg Market Cap
$450.8B
Median Market Cap
$146.2B
Avg P/E
39.2
Median P/E
28.9
Avg Dividend Yield
0.01%
Avg Beta
1.07
# Stocks
112
# ETFs / Funds
23

Top Holdings (135 total)

# Symbol % Port Shares Value Avg Price Q/Q Value Chg Share Chg Chg % Status
1 NVDA 6.06% 601,558 $112M $186.58 $18M +6,382 +1.1%
2 AAPL 4.83% 351,315 $89M $254.63 $29M +56,921 +19.3%
3 MSFT 4.71% 168,164 $87M $517.95 $40M +73,462 +77.6%
4 PLTR 4.49% 455,493 $83M $182.42 $20M -5,939 -1.3%
5 HOOD 4.17% 539,305 $77M $143.18 $27M +2,569 +0.5%
6 GOOGL 3.94% 299,844 $73M $243.10 $20M +2,499 +0.8%
7 JPM 3.83% 224,723 $71M $315.43 $6M +437 +0.2%
8 AVGO 3.72% 208,426 $69M $329.91 $18M +23,801 +12.9%
9 META 3.54% 89,183 $65M $734.38 $19M +25,536 +40.1%
10 TSM 3.33% 220,871 $62M $279.29 $31M +83,894 +61.2%
11 ISCF 3.32% 1,495,000 $61M $41.13 +1,495,000 NEW
12 V 3.27% 177,093 $60M $341.38 -$761K +4,673 +2.7%
13 COST 3.17% 63,459 $59M $925.63 -$3M +610 +1.0%
14 AMZN 3.12% 262,934 $58M $219.57 $9M +38,770 +17.3%
15 MCK 2.88% 68,892 $53M $772.54 $2M -286 -0.4%
16 NFLX 2.78% 42,922 $51M $1,198.92 -$6M +332 +0.8%
17 UBER 2.40% 452,820 $44M $97.97 $2M +3,485 +0.8%
18 TMUS 2.33% 180,321 $43M $239.38 $361K +667 +0.4%
19 ASML 2.11% 40,434 $39M $968.09 $25M +22,937 +131.1%
20 MELI 2.00% 15,833 $37M $2,336.94 -$4M +105 +0.7%
21 APH 1.99% 297,311 $37M $123.75 +297,311 NEW
22 GLDM 1.93% 466,864 $36M $76.45 $6M +18,377 +4.1%
23 SPOT 1.90% 50,422 $35M $698.00 -$3M +603 +1.2%
24 WMT 1.90% 340,885 $35M $103.06 $2M +5,139 +1.5%
25 BCS 1.89% 1,694,985 $35M $20.67 +1,694,985 NEW
26 LIN 1.88% 73,368 $35M $475.00 $845K +890 +1.2%
27 BKNG 1.80% 6,159 $33M $5,399.27 $6M +1,491 +31.9%
28 TT 1.79% 78,610 $33M $421.96 -$226K +2,261 +3.0%
29 IBN 1.72% 1,051,914 $32M $30.23 -$3M +11,884 +1.1%
30 CCJ 1.65% 364,392 $31M $83.86 +364,392 NEW
31 GEV 1.62% 48,641 $30M $614.90 $15M +21,037 +76.2%
32 APO 1.56% 217,067 $29M $133.27 +217,067 NEW
33 PG 1.27% 152,748 $23M $153.65 -$41M -254,164 -62.5%
34 FICO 0.70% 8,627 $13M $1,496.53 -$7M -2,097 -19.6%
35 IBIT 0.67% 190,842 $12M $65.00 +190,842 NEW
36 PANW 0.38% 34,452 $7M $203.62 $4M +21,306 +162.1%
37 BRK-B 0.36% 13,261 $7M $502.74 -$50M -102,920 -88.6%
38 TSLA 0.31% 13,020 $6M $444.74 $2M +1,220 +10.3%
39 MCD 0.31% 18,968 $6M $303.90 $221K -5 -0.0%
40 ANET 0.27% 34,884 $5M $145.71 +34,884 NEW
41 GOOG 0.26% 19,661 $5M $243.55 $1M -459 -2.3%
42 ADSK 0.24% 14,074 $4M $317.67 -$66K -580 -4.0%
43 BRK-A 0.20% 5 $4M $754,200.00 $127K
44 SCHW 0.18% 34,098 $3M $95.47 $188K +481 +1.4%
45 WFC 0.17% 37,085 $3M $83.82 $2M +18,703 +101.8%
46 URTH 0.16% 16,721 $3M $181.56 -$130K -1,967 -10.5%
47 IXUS 0.15% 33,188 $3M $82.58 $770K +7,703 +30.2%
48 XOM 0.15% 24,225 $3M $112.75 $361K +2,241 +10.2%
49 CVX 0.14% 16,801 $3M $155.29 $1M +7,267 +76.2%
50 ABBV 0.12% 9,517 $2M $231.55 $514K +415 +4.6%
51 JNJ 0.11% 11,385 $2M $185.42 $385K +85 +0.8%
52 LLY 0.11% 2,681 $2M $763.09 -$42K +2 +0.1%
53 SPY 0.10% 2,654 $2M $666.29 $113K -17 -0.6%
54 CAT 0.08% 3,081 $1M $477.15 $722K +1,155 +60.0%
55 MMM 0.07% 8,092 $1M $155.18 $29K +36 +0.5%
56 CLX 0.06% 9,368 $1M $123.30 $35K +40 +0.4%
57 ORCL 0.06% 3,836 $1M $281.24 $781K +2,473 +181.4%
58 ISTB 0.06% 21,228 $1M $48.84 $114K +2,262 +11.9%
59 MU 0.05% 5,976 $1000K $167.32 $269K +47 +0.8%
60 IVV 0.05% 1,450 $970K $669.30 $224K +248 +20.6%
61 QQQ 0.05% 1,595 $958K $600.55 $384K +556 +53.5%
62 RTX 0.05% 5,563 $931K $167.34 $276K +1,078 +24.0%
63 SCHI 0.04% 34,241 $790K $23.08 $198K +8,232 +31.6%
64 MRK 0.04% 9,270 $778K $83.93 $61K +302 +3.4%
65 IGLB 0.04% 14,165 $730K $51.54 $255K +4,711 +49.8%
66 ADP 0.04% 2,478 $727K $293.50 -$41K
67 CSCO 0.04% 10,472 $716K $68.42 -$17K -105 -1.0%
68 BMY 0.04% 14,715 $664K $45.10 -$13K +108 +0.7%
69 SYK 0.04% 1,791 $662K $369.67 -$68K -50 -2.7%
70 VOO 0.03% 1,057 $647K $612.33 $310K +466 +78.8%
71 BAC 0.03% 12,538 $647K $51.59 $171K +2,486 +24.7%
72 BSX 0.03% 6,446 $629K $97.63 -$40M -374,847 -98.3%
73 NTES 0.03% 4,085 $621K $151.99 $83K +85 +2.1%
74 ACN 0.03% 2,484 $613K $246.60 -$167K -125 -4.8%
75 CRM 0.03% 2,518 $597K $237.00 $146K +866 +52.4%
76 AMD 0.03% 3,499 $566K $161.79 -$31K -706 -16.8%
77 IT 0.03% 2,153 $566K $262.87 +2,153 NEW
78 VTI 0.03% 1,652 $542K $328.17 -$70K -355 -17.7%
79 CL 0.03% 6,699 $536K $79.94 -$73K
80 COIN 0.03% 1,553 $524K $337.49 -$19K +3 +0.2%
81 HSBC 0.03% 7,358 $522K $70.98 $97K +361 +5.2%
82 INTU 0.03% 752 $513K $682.80 -$50K +37 +5.2%
83 C 0.03% 4,894 $497K $101.50 $104K +276 +6.0%
84 ITOT 0.03% 3,405 $496K $145.65 $36K
85 XYL 0.03% 3,313 $489K $147.50 $68K +63 +1.9%
86 TMO 0.03% 996 $483K $485.02 $110K +78 +8.5%
87 CW 0.03% 888 $482K $542.94 $48K
88 ABT 0.03% 3,531 $473K $133.94 $2K +67 +1.9%
89 ADBE 0.02% 1,270 $448K $352.75 $144K +484 +61.6%
90 HD 0.02% 1,011 $410K $405.19 $39K
91 T 0.02% 14,043 $397K $28.24 $42K +1,789 +14.6%
92 CRWD 0.02% 798 $391K $490.38 +798 NEW
93 SHOP 0.02% 2,616 $389K $148.61 $158K +616 +30.8%
94 SJM 0.02% 3,556 $386K $108.60 $39K +17 +0.5%
95 SCHX 0.02% 14,531 $383K $26.34 $116K +3,633 +33.3%
96 IBM 0.02% 1,295 $365K $282.16 -$41K -82 -6.0%
97 IWF 0.02% 766 $359K $468.41 $34K
98 NSC 0.02% 1,181 $355K $300.41 $52K
99 CMCSA 0.02% 11,223 $353K $31.42 -$18K +851 +8.2%
100 FTNT 0.02% 4,190 $352K $84.08 +4,190 NEW

New Positions

SymbolValue% Port
ISCF $61M 3.32%
APH $37M 1.99%
BCS $35M 1.89%
CCJ $31M 1.65%
APO $29M 1.56%
IBIT $12M 0.67%
ANET $5M 0.27%
IT $566K 0.03%
CRWD $391K 0.02%
FTNT $352K 0.02%
EBAY $325K 0.02%
IDXX $263K 0.01%
KLAC $253K 0.01%
INTC $240K 0.01%
TDY $212K 0.01%

Sold Out Positions

SymbolValue% Port
NOW —%
RELX —%
SAP —%
CHKP —%
ISRG —%
BABA —%
View SEC EDGAR Filings for Main Street Research LLC →

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For informational purposes only. Not investment advice. Data sourced from SEC filings. Privacy Terms