Main Street Research LLC
Sector Allocation
- Technology45.8%$971.0M
- Other12.9%$272.4M
- Financials9.0%$191.1M
- Materials8.7%$184.9M
- Industrials6.2%$131.8M
- Consumer Staples6.2%$130.5M
- Consumer Discretionary5.0%$106.7M
- Healthcare4.5%$96.2M
- Energy1.6%$33.4M
- Communication Services0.0%$562,228
AUM History
13fpro.ai/research/fund/main-street-research-llc-1513211
Conviction and streaks
Concentrating · top 10 = 48.9%From the fund's last 12 quarters of 13F filings: positions held longest at size, and names it added to or trimmed several quarters running.
Largest positions — Q2 2026
NVDA
$126.1MMU
$125.4MAAPL
$117.5MGOOGL
$113.3MTSM
$109.1MGLW
$100.7M- SPDR$91.3M
- ISHARES$87.8M
ASML
$84.3MAVGO
$80.8MJPM
$74.1M- ISHARES$72.9M
CAT
$65.8MAMZN
$65.5MGEV
$59.7MAPH
$54.4MJNJ
$47.9MRY
$47.0MCOST
$44.4MBHP
$44.0M
Top 20 stock positions. Options are left out: 13F reports them at the underlying's value.
13fpro.ai/research/fund/main-street-research-llc-1513211
Main Street Research LLC 13F holdings — Q2 2026
$2.1B portfolio (+23.3% QoQ) · 140 holdings · Q2 2026 13F · top 10 are 49% of the stock portfolio
$126.1M
6.0% of stocks
+1%This quarter+13.7%Since filed10+ qtrsHeld$125.4M
5.9% of stocks
-0.4%This quarter+22.3%Since filed5 qtrsHeld$117.5M
5.5% of stocks
+0.6%This quarter+1.7%Since filed10+ qtrsHeld$113.3M
5.3% of stocks
+2%This quarter-6.4%Since filed10+ qtrsHeld$109.1M
5.2% of stocks
+2%This quarter+13.3%Since filed9 qtrsHeld$100.7M
4.8% of stocks
+2%This quarter+3.0%Since filed2 qtrsHeldAIQualityAI quality score is Pro: unlock with a free trialEst. buyEstimated buy price is Pro: unlock with a free trialAdded 2 qtrs in a row- 7
SPDR SERIES TRUST - ST STR SP BIOT
$91.3M
4.3% of stocks
+2%This quarter—Since filed—HeldAIQuality—Est. buy— - 8
ISHARES TR - INTERNATIONAL SL
$87.8M
4.1% of stocks
+4%This quarter—Since filed—HeldAIQuality—Est. buy— $84.3M
4.0% of stocks
+2%This quarter+2.6%Since filed10+ qtrsHeldAIQualityAI quality score is Pro: unlock with a free trialEst. buyEstimated buy price is Pro: unlock with a free trialAdded 2 qtrs in a row$80.8M
3.8% of stocks
+0.7%This quarter-11.1%Since filed10+ qtrsHeld
All holdings — Main Street Research LLC (Q2 2026)
140 disclosed positions from the Form 13F-HR on SEC EDGAR, with quarter-over-quarter share changes. Largest by value first; the ten above are not repeated.
| # | Company | Held | Source | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 11 | JPMORGAN CHASE & CO | Financials | $74.1M | 3.5% | 226K | +1% | 10+ qtrs | AI quality score is Pro: unlock with a free trial | 13F | |
| 12 | — | ISHARES INC - MSCI STH KOR ETFetf/fund | — | $72.9M | 3.4% | 361K | -0.3% | — | — | 13F |
| 13 | CATERPILLAR INC | Industrials | $65.8M | 3.1% | 62K | +1% | 10+ qtrsAdded 4 qtrs in a row | AI quality score is Pro: unlock with a free trial | 13F | |
| 14 | AMAZON COM INC | Consumer Discretionary | $65.5M | 3.1% | 275K | +2% | 10+ qtrsAdded 2 qtrs in a row | AI quality score is Pro: unlock with a free trial | 13F | |
| 15 | GE Vernova Inc. | Industrials | $59.7M | 2.8% | 51K | +0.2% | 6 qtrs | AI quality score is Pro: unlock with a free trial | 13F | |
| 16 | AMPHENOL CORP /DE/ | Technology | $54.4M | 2.6% | 309K | +3% | 4 qtrsAdded 2 qtrs in a row | AI quality score is Pro: unlock with a free trial | 13F | |
| 17 | JOHNSON & JOHNSON | Healthcare | $47.9M | 2.3% | 189K | +0.9% | 10+ qtrs | AI quality score is Pro: unlock with a free trial | 13F | |
| 18 | ROYAL BANK OF CANADA | Financials | $47.0M | 2.2% | 227K | +2% | 2 qtrsAdded 2 qtrs in a row | AI quality score is Pro: unlock with a free trial | 13F | |
| 19 | COSTCO WHOLESALE CORP /NEW | Consumer Staples | $44.4M | 2.1% | 47K | +3% | 10+ qtrs | AI quality score is Pro: unlock with a free trial | 13F | |
| 20 | BHP Group Ltdadr | Materials | $44.0M | 2.1% | 528K | +2% | 2 qtrsAdded 2 qtrs in a row | AI quality score is Pro: unlock with a free trial | 13F | |
| 21 | BARCLAYS PLCadr | Financials | $43.6M | 2.1% | 1.62M | +91% | 4 qtrs | AI quality score is Pro: unlock with a free trial | 13F | |
| 22 | Meta Platforms, Inc. | Technology | $40.7M | 1.9% | 72K | +2% | 10+ qtrs | AI quality score is Pro: unlock with a free trial | 13F | |
| 23 | Keysight Technologies, Inc. | Technology | $40.3M | 1.9% | 115K | +2% | 2 qtrsAdded 2 qtrs in a row | AI quality score is Pro: unlock with a free trial | 13F | |
| 24 | CAMECO CORP | Materials | $39.9M | 1.9% | 392K | +0.6% | 4 qtrs | AI quality score is Pro: unlock with a free trial | 13F | |
| 25 | Walmart Inc. | Consumer Staples | $39.5M | 1.9% | 349K | +1% | 10+ qtrsAdded 2 qtrs in a row | AI quality score is Pro: unlock with a free trial | 13F | |
| 26 | $AZN | ASTRAZENECA PLC | Healthcare | $37.4M | 1.8% | 197K | +4% | |||
| 27 | $ROST | ROSS STORES, INC. | Consumer Discretionary | $32.1M | 1.5% | 151K | New | |||
| 28 | $FTI | TechnipFMC plc | Energy | $27.4M | 1.3% | 414K | New | |||
| 29 | $MSFT | MICROSOFT CORP | Technology | $25.8M | 1.2% | 69K | +2% | |||
| 30 | $PG | PROCTER & GAMBLE Co | Consumer Staples | $22.2M | 1.1% | 151K | -0.4% | |||
| 31 | $MCK | MCKESSON CORP | Consumer Staples | $21.5M | 1.0% | 28K | -58% | |||
| 32 | $FICO | FAIR ISAAC CORP | Technology | $11.4M | 0.5% | 9,580 | +13% | |||
| 33 | $GOOG | Alphabet Inc. | Technology | $8.0M | 0.4% | 23K | -3% | |||
| 34 | $PANW | Palo Alto Networks Inc | Technology | $8.0M | 0.4% | 23K | -31% | |||
| 35 | $BRK.B | BERKSHIRE HATHAWAY INC | Financials | $6.0M | 0.3% | 12K | +0.0% | |||
| 36 | $ANET | Arista Networks, Inc. | Technology | $5.9M | 0.3% | 35K | -0.1% | |||
| 37 | $TSLA | Tesla, Inc. | Consumer Discretionary | $5.4M | 0.3% | 13K | +5% | |||
| 38 | $SCHW | SCHWAB CHARLES CORP | Financials | $4.2M | 0.2% | 46K | -1% | |||
| 39 | $WFC | WELLS FARGO & COMPANY/MN | Financials | $4.0M | 0.2% | 49K | +4% | |||
| 40 | $BRK.A | BERKSHIRE HATHAWAY INC | Financials | $3.7M | 0.2% | 5 | — | |||
| 41 | — | ISHARES TR - CORE MSCI TOTAL | — | $3.7M | 0.2% | 39K | +1% | |||
| 42 | $LLY | ELI LILLY & Co | Healthcare | $3.3M | 0.2% | 2,746 | -6% | |||
| 43 | $V | VISA INC. | Financials | $3.2M | 0.1% | 9,369 | -9% | |||
| 44 | $XOM.R34088 | EXXON MOBIL CORP | Energy | $3.1M | 0.1% | 22K | -6% | |||
| 45 | $ADSK | Autodesk, Inc. | Technology | $2.8M | 0.1% | 14K | -1% | |||
| 46 | — | ISHARES INC - MSCI WORLD ETF | — | $2.7M | 0.1% | 14K | -8% | |||
| 47 | $CVX | CHEVRON CORP | Energy | $2.7M | 0.1% | 16K | -5% | |||
| 48 | $SPY | SPDR S&P 500 ETF TRUST | — | $2.6M | 0.1% | 3,485 | +7% | |||
| 49 | $ABBV | AbbVie Inc. | Healthcare | $2.4M | 0.1% | 9,721 | -5% | |||
| 50 | $MCD | MCDONALDS CORP | Consumer Discretionary | $2.4M | 0.1% | 8,913 | -42% | |||
| 51 | $AMD | ADVANCED MICRO DEVICES INC | Technology | $1.9M | 0.1% | 3,308 | +5% | |||
| 52 | — | ISHARES TR - CORE S&P500 ETF | — | $1.4M | 0.1% | 1,810 | -29% | |||
| 53 | $PLTR | Palantir Technologies Inc. | Technology | $1.3M | 0.1% | 11K | -93% | |||
| 54 | $MMM | 3M CO | Healthcare | $1.2M | 0.1% | 7,610 | -3% | |||
| 55 | — | ISHARES TR - CORE 1 5 YR USD | — | $1.2M | 0.1% | 25K | +2% | |||
| 56 | $CSCO | CISCO SYSTEMS, INC. | Technology | $1.1M | 0.1% | 9,682 | -4% | |||
| 57 | $QQQ | INVESCO QQQ TRUST, SERIES 1 | — | $1.1M | 0.1% | 1,531 | -13% | |||
| 58 | $RTX | RTX Corp | Industrials | $1.1M | 0.1% | 5,752 | -5% | |||
| 59 | $MRK | Merck & Co., Inc. | Healthcare | $1.1M | 0.1% | 8,298 | -13% | |||
| 60 | $TXN | TEXAS INSTRUMENTS INC | Technology | $1.1M | 0.1% | 3,560 | +0.9% | |||
| 61 | — | SCHWAB STRATEGIC TR - 5 10YR CORP BD | — | $1.1M | 0.1% | 46K | +5% | |||
| 62 | $INTC | INTEL CORP | Technology | $1.0M | 0.1% | 7,350 | +24% | |||
| 63 | — | ISHARES TR - 10+ YR INVST GRD | — | $987K | 0.1% | 20K | +5% | |||
| 64 | $PHM | PULTEGROUP INC/MI/ | Industrials | $980K | 0.1% | 7,145 | -3% | |||
| 65 | $ON | ON SEMICONDUCTOR CORP | Technology | $980K | 0.1% | 10K | +0.1% | |||
| 66 | $CRM | Salesforce, Inc. | Technology | $909K | 0.0% | 5,802 | -16% | |||
| 67 | $CRUS | CIRRUS LOGIC, INC. | Technology | $882K | 0.0% | 5,936 | +4% | |||
| 68 | $LRCX | LAM RESEARCH CORP | Technology | $874K | 0.0% | 2,016 | +1% | |||
| 69 | $CLX | CLOROX CO /DE/ | Consumer Staples | $853K | 0.0% | 8,934 | -6% | |||
| 70 | $GS | GOLDMAN SACHS GROUP INC | Financials | $820K | 0.0% | 811 | -7% | |||
| 71 | $C | CITIGROUP INC | Financials | $812K | 0.0% | 5,803 | +5% | |||
| 72 | — | STATE STR SPDR DOW JONES IND - UT SER 1 | — | $805K | 0.0% | 1,541 | +3% | |||
| 73 | $CW | CURTISS WRIGHT CORP | Industrials | $787K | 0.0% | 1,038 | +3% | |||
| 74 | $UBER | Uber Technologies, Inc | Technology | $780K | 0.0% | 11K | -6% | |||
| 75 | $CL | COLGATE PALMOLIVE CO | Consumer Staples | $769K | 0.0% | 8,390 | +12% | |||
| 76 | — | VANGUARD INDEX FDS - S&P 500 ETF SHS | — | $759K | 0.0% | 1,104 | -17% | |||
| 77 | $HSBC | HSBC HOLDINGS PLC | Financials | $739K | 0.0% | 7,772 | +0.5% | |||
| 78 | $BAC | BANK OF AMERICA CORP /DE/ | Financials | $676K | 0.0% | 12K | -0.6% | |||
| 79 | $DHI | HORTON D R INC /DE/ | Industrials | $664K | 0.0% | 4,075 | +7% | |||
| 80 | $UNP | UNION PACIFIC CORP | Industrials | $656K | 0.0% | 2,413 | -42% | |||
| 81 | $MUFG | MITSUBISHI UFJ FINANCIAL GROUP INC | Financials | $651K | 0.0% | 33K | +7% | |||
| 82 | $FTNT | Fortinet, Inc. | Technology | $647K | 0.0% | 4,214 | +3% | |||
| 83 | $BX | Blackstone Inc. | Financials | $593K | 0.0% | 5,036 | -5% | |||
| 84 | $DAL | DELTA AIR LINES, INC. | Industrials | $587K | 0.0% | 6,263 | +23% | |||
| 85 | $CRWD | CrowdStrike Holdings, Inc. | Technology | $568K | 0.0% | 744 | +18% | |||
| 86 | $ADI | ANALOG DEVICES INC | Technology | $554K | 0.0% | 1,395 | -6% | |||
| 87 | — | SELECT SECTOR SPDR TR - ST STR TECHN ETF | — | $533K | 0.0% | 2,800 | — | |||
| 88 | $EBAY | EBAY INC | Consumer Discretionary | $530K | 0.0% | 4,739 | +14% | |||
| 89 | $NTES | NetEase, Inc. | Technology | $523K | 0.0% | 4,085 | — | |||
| 90 | $ORCL | ORACLE CORP | Technology | $514K | 0.0% | 3,505 | +0.2% | |||
| 91 | — | ISHARES TR - ISHARES SEMICDTR | — | $494K | 0.0% | 771 | — | |||
| 92 | $KLAC | KLA CORP | Technology | $484K | 0.0% | 1,604 | +806% | |||
| 93 | $ADP | AUTOMATIC DATA PROCESSING INC | Technology | $469K | 0.0% | 2,092 | -6% | |||
| 94 | $TT | Trane Technologies plc | Technology | $466K | 0.0% | 948 | +0.1% | |||
| 95 | — | VANGUARD INDEX FDS - TOTAL STK MKT | — | $464K | 0.0% | 1,255 | -3% | |||
| 96 | — | ISHARES TR - EXPND TEC SC ETF | — | $461K | 0.0% | 2,816 | +46% | |||
| 97 | $HUT | Hut 8 Corp. | Financials | $460K | 0.0% | 3,986 | New | |||
| 98 | $PEP | PEPSICO INC | Consumer Staples | $456K | 0.0% | 3,365 | -10% | |||
| 99 | $LEN | LENNAR CORP /NEW/ | Industrials | $406K | 0.0% | 4,483 | +15% | |||
| 100 | $TMO | THERMO FISHER SCIENTIFIC INC. | Healthcare | $401K | 0.0% | 800 | -11% | |||
| 101 | $SYK | STRYKER CORP | Healthcare | $384K | 0.0% | 1,221 | -31% | |||
| 102 | $TJX | TJX COMPANIES INC /DE/ | Consumer Discretionary | $382K | 0.0% | 2,524 | +32% | |||
| 103 | $SHOP | SHOPIFY INC. | Technology | $382K | 0.0% | 3,345 | +37% | |||
| 104 | $SJM | J M SMUCKER Co | Consumer Staples | $375K | 0.0% | 3,337 | +17% | |||
| 105 | $EXPE | Expedia Group, Inc. | Consumer Discretionary | $366K | 0.0% | 1,431 | +20% | |||
| 106 | — | ISHARES TR - RUS 1000 GRW ETF | — | $345K | 0.0% | 2,780 | +300% | |||
| 107 | $MTCH | Match Group, Inc. | Technology | $333K | 0.0% | 8,746 | +25% | |||
| 108 | $ENTG | ENTEGRIS INC | Materials | $330K | 0.0% | 1,832 | -1% | |||
| 109 | $COHR | COHERENT CORP. | Technology | $325K | 0.0% | 823 | -3% | |||
| 110 | $XYL | Xylem Inc. | Industrials | $323K | 0.0% | 2,729 | -18% | |||
| 111 | $UAL | United Airlines Holdings, Inc. | Industrials | $319K | 0.0% | 2,344 | New | |||
| 112 | $IDXX | IDEXX LABORATORIES INC /DE | Healthcare | $316K | 0.0% | 600 | +34% | |||
| 113 | $BMY | BRISTOL MYERS SQUIBB CO | Healthcare | $303K | 0.0% | 5,252 | -24% | |||
| 114 | $T | AT&T INC. | Communication Services | $291K | 0.0% | 14K | -30% | |||
| 115 | — | VANGUARD TAX-MANAGED FDS - VAN FTSE DEV MKT | — | $291K | 0.0% | 4,086 | New | |||
| 116 | — | SCHWAB STRATEGIC TR - US LRG CAP ETF | — | $289K | 0.0% | 9,835 | -8% | |||
| 117 | $MNST | Monster Beverage Corp | Consumer Staples | $285K | 0.0% | 2,967 | New | |||
| 118 | $PTC | PTC INC. | Technology | $277K | 0.0% | 2,438 | -2% | |||
| 119 | $CCZ | COMCAST CORP | Communication Services | $271K | 0.0% | 11K | -18% | |||
| 120 | — | ISHARES TR - CORE S&P US GWT | — | $270K | 0.0% | 1,435 | New | |||
| 121 | — | SCHWAB STRATEGIC TR - INTL EQTY ETF | — | $266K | 0.0% | 9,606 | -6% | |||
| 122 | — | SCHWAB STRATEGIC TR - FUNDAMENTAL US L | — | $266K | 0.0% | 8,541 | — | |||
| 123 | — | ISHARES TR - DOW JONES US ETF | — | $264K | 0.0% | 1,446 | — | |||
| 124 | — | ISHARES TR - CORE S&P US VLU | — | $261K | 0.0% | 2,371 | New | |||
| 125 | $PH | Parker-Hannifin Corp | Industrials | $259K | 0.0% | 265 | +2% | |||
| 126 | $HOOD | Robinhood Markets, Inc. | Financials | $259K | 0.0% | 2,581 | -22% | |||
| 127 | $IT | GARTNER INC | Technology | $258K | 0.0% | 1,991 | -6% | |||
| 128 | $PACB | PACIFIC BIOSCIENCES OF CALIFORNIA, INC. | Healthcare | $256K | 0.0% | 152K | — | |||
| 129 | $QCOM | QUALCOMM INC/DE | Technology | $254K | 0.0% | 1,375 | New | |||
| 130 | $NSC | NORFOLK SOUTHERN CORP | Industrials | $254K | 0.0% | 806 | -8% | |||
| 131 | $LNG | Cheniere Energy, Inc. | Energy | $241K | 0.0% | 1,010 | — | |||
| 132 | $ABEO | ABEONA THERAPEUTICS INC. | Healthcare | $238K | 0.0% | 39K | New | |||
| 133 | $CI | Cigna Group | Healthcare | $233K | 0.0% | 846 | +10% | |||
| 134 | $ABT | ABBOTT LABORATORIES | Healthcare | $226K | 0.0% | 2,493 | -35% | |||
| 135 | $HIMS | Hims & Hers Health, Inc. | Healthcare | $215K | 0.0% | 6,200 | New | |||
| 136 | $AON | Aon plc | Financials | $208K | 0.0% | 628 | +1.0% | |||
| 137 | $PHG | KONINKLIJKE PHILIPS NV | Healthcare | $208K | 0.0% | 7,655 | +3% | |||
| 138 | $KO | COCA COLA CO | Consumer Staples | $208K | 0.0% | 2,558 | New | |||
| 139 | $DDOG | Datadog, Inc. | Technology | $206K | 0.0% | 791 | New | |||
| 140 | $TMC | TMC the metals Co Inc. | Materials | $44K | 0.0% | 10K | — |
What changed in Q2 2026
Against the previous quarter's 13F: 13 new, 67 added to, 51 trimmed, 21 sold out. Share-count changes; largest moves by dollar size first.
New positions (13)
$ROSTROSS STORES, INC.$32.1M
first bought this quarter
$FTITechnipFMC plc$27.4M
first bought this quarter
$HUTHut 8 Corp.$460K
first bought this quarter
$UALUnited Airlines Holdings, Inc.$319K
first bought this quarter
- VANGUARD TAX-MANAGED FDS - VAN FTSE DEV MKT$291K
first bought this quarter
$MNSTMonster Beverage Corp$285K
first bought this quarter
+7 more in the Excel export
Added to (67)
$BCSBARCLAYS PLC+91%
now $43.6M · held 4 qtrs
- ISHARES TR - INTERNATIONAL SL+4%
now $87.8M
$TSMTAIWAN SEMICONDUCTOR MANUFACTURING CO LTD+2%
now $109.1M · held 9 qtrs, 2 adds in a row
$NVDANVIDIA CORP+1%
now $126.1M · held 10+ qtrs, 2 adds in a row
$GOOGLAlphabet Inc.+2%
now $113.3M · held 10+ qtrs, 2 adds in a row
$GLWCORNING INC /NY+2%
now $100.7M · held 2 qtrs, 2 adds in a row
+61 more in the Excel export
Trimmed (51)
$MCKMCKESSON CORP-58%
now $21.5M · held 10+ qtrs
$PLTRPalantir Technologies Inc.-93%
now $1.3M · held 8 qtrs, 5 trims in a row
$PANWPalo Alto Networks Inc-31%
now $8.0M · held 10+ qtrs
$MCDMCDONALDS CORP-42%
now $2.4M · held 10+ qtrs, 3 trims in a row
- ISHARES TR - CORE S&P500 ETF-29%
now $1.4M
$MUMICRON TECHNOLOGY INC-0.4%
now $125.4M · held 5 qtrs
+45 more in the Excel export
Holdings by quarter
Every 13F Main Street Research LLC has filed, 40 earlier quarters. Pick one to see what it held then.
Is it too late to follow Main Street Research?
Q2 2026 13F filed with the SEC on Jul 29, 2026. Prices are closing prices as of Oct 26, 2026.
Average quality of Main Street Research's top 20 holdings: 77/100 (our AI quality score, weighted by position size; 16 of the 20 are scored)
Top 10 since filing
+4.1%
Value-weighted move of the 10 largest stock positions
Turnover
6%
Last quarter; 49% over the last 4
Top 10 weight
49%
Share of the stock portfolio in its 10 largest positions
Held 4+ quarters
81%
Share of portfolio value in positions held a year or more
Highest-quality names it owns(among its 100 largest positions)
The 8 highest-scoring companies in this portfolio are a Pro feature.
How these are measured
- Moves since the quarter-end and since the filing date use our own daily closing prices, from the close on (or just before) each date to the latest close.
- Turnover is the lesser of shares bought or sold in a quarter, valued at the quarter-end prices in the 13F, divided by the average of the two quarters' stock portfolio values.
- Quarters held and add/trim streaks count back only through quarters whose filed holdings add up to the filing's own cover-page total (back to Q1 2024 for this fund). A change counts as an add or a trim when the split-adjusted share count moves by more than 1%.
- Estimate, not the fund's reported cost. For each quarter in the current holding period in which the fund's share count rose (split-adjusted), we take that quarter's average daily close and weight it by the shares added; sales do not change an average cost. Quarters where the stock's price history and the 13F's own implied price disagree by more than 2x are left out.
- Put and call option rows report the value of the underlying shares, not a position the fund paid for, so they are left out of all of the above.
Portfolio Overview
Main Street Research LLC disclosed 140 positions worth $2.1B in its Form 13F-HR for Q2 2026, led by $NVDA (NVIDIA CORP) at 6.0% of the equity portfolio, followed by $MU and $AAPL. During the quarter the fund opened 13 new positions and exited 21 — including a new stake in $ROST and a full exit from $GLDM. The portfolio is most concentrated in Technology (45.8% of disclosed assets). All figures are sourced directly from Main Street Research LLC’s Form 13F-HR filing with the SEC under CIK 1513211.
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AI-Powered Hedge Fund Analysis: Main Street Research LLC
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Every holding in Main Street Research LLC's portfolio is scored on an AI quality ranking built from its SEC filings (ROIC, FCF margin, revenue growth, institutional flow, earnings quality, shareholder dilution, and more). Track accumulation and distribution quarter over quarter, identify conviction positions, and see AI stock analysis for each position — alongside 8,700+ other institutional filers and 2,800+ AI-ranked companies.