Great Diamond Partners, LLC
Sector Allocation
- Other53.7%$319.7M
- Technology15.5%$92.3M
- Financials7.7%$45.6M
- Healthcare4.9%$29.4M
- Consumer Discretionary3.5%$20.9M
- Consumer Staples3.5%$20.6M
- Energy3.4%$20.3M
- Industrials3.2%$19.1M
- Materials2.3%$13.5M
- Utilities1.3%$7.5M
AUM History
13fpro.ai/research/fund/great-diamond-partners-llc-1801112
Conviction and streaks
Stable · top 10 = 29.9%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 — Q3 2026
- VANGUARD$33.0M
- ISHARES$30.9M
- ISHARES$27.8M
- VANGUARD$14.2M
MSFT
$14.0M- AMERICAN$12.7M
- SIMPLIFY$12.4M
- DIMENSIONAL$11.6M
PG
$11.4M- ISHARES$10.2M
- BLACKROCK$9.7M
IVZ
$9.6MAAPL
$9.3M- PIMCO$8.8M
- VANGUARD$8.7M
- ISHARES$8.3M
NVDA
$8.0M- ISHARES$7.8M
IDXX
$7.5M- ISHARES$7.3M
Top 20 stock positions. Options are left out: 13F reports them at the underlying's value.
13fpro.ai/research/fund/great-diamond-partners-llc-1801112
Great Diamond Partners, LLC 13F holdings — Q3 2026
$595.5M portfolio (+2.4% QoQ) · 238 holdings · Q3 2026 13F · top 10 are 30% of the stock portfolio
- 1
VANGUARD INDEX FDS - MRNGSTR TTL STK
$33.0M
5.5% of stocks
+0.2%This quarter—Since filed—HeldAIQuality—Est. buy— - 2
ISHARES TR - RUSSELL 3000 ETF
$30.9M
5.2% of stocks
-0.8%This quarter—Since filed—HeldAIQuality—Est. buy— - 3
ISHARES TR - CORE MSCI EAFE
$27.8M
4.7% of stocks
+0.9%This quarter—Since filed—HeldAIQuality—Est. buy— - 4
VANGUARD INDEX FDS - EXTEND MKT ETF
$14.2M
2.4% of stocks
-0.7%This quarter—Since filed—HeldAIQuality—Est. buy— $14.0M
2.4% of stocks
-1%This quarter-2.0%Since filed11+ qtrsHeld- 6
AMERICAN CENTY ETF TR - AVANTIS EMGMKT
$12.7M
2.1% of stocks
+1%This quarter—Since filed—HeldAIQuality—Est. buy— - 7
SIMPLIFY EXCHANGE TRADED FUN - AGGREGATE BD ETF
$12.4M
2.1% of stocks
+9%This quarter—Since filed—HeldAIQuality—Est. buy— - 8
DIMENSIONAL ETF TRUST - INTL CORE EQT MK
$11.6M
1.9% of stocks
+3%This quarter—Since filed—HeldAIQuality—Est. buy— $11.4M
1.9% of stocks
-0.4%This quarter+4.5%Since filed11+ qtrsHeld- 10
ISHARES TR - IBONDS 27 ETF
$10.2M
1.7% of stocks
+30%This quarter—Since filed—HeldAIQuality—Est. buy—
| # | Company | Value | Weight | This quarter | Since filed | Held | AI quality | Est. buy | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | VANGUARD INDEX FDS - MRNGSTR TTL STK | $33.0M | 5.5% | +0.2% | — | — | — | — | |
| 2 | ISHARES TR - RUSSELL 3000 ETF | $30.9M | 5.2% | -0.8% | — | — | — | — | |
| 3 | ISHARES TR - CORE MSCI EAFE | $27.8M | 4.7% | +0.9% | — | — | — | — | |
| 4 | VANGUARD INDEX FDS - EXTEND MKT ETF | $14.2M | 2.4% | -0.7% | — | — | — | — | |
| 5 | $14.0M | 2.4% | -1% | -2.0% | 11+ qtrsTrimmed 3 qtrs in a row | 79.8#30 | Estimated buy price is Pro: unlock with a free trial | ||
| 6 | AMERICAN CENTY ETF TR - AVANTIS EMGMKT | $12.7M | 2.1% | +1% | — | — | — | — | |
| 7 | SIMPLIFY EXCHANGE TRADED FUN - AGGREGATE BD ETF | $12.4M | 2.1% | +9% | — | — | — | — | |
| 8 | DIMENSIONAL ETF TRUST - INTL CORE EQT MK | $11.6M | 1.9% | +3% | — | — | — | — | |
| 9 | $11.4M | 1.9% | -0.4% | +4.5% | 11+ qtrs | 64.6#521 | Estimated buy price is Pro: unlock with a free trial | ||
| 10 | ISHARES TR - IBONDS 27 ETF | $10.2M | 1.7% | +30% | — | — | — | — |
All holdings — Great Diamond Partners, LLC (Q3 2026)
238 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 | — | BLACKROCK ETF TRUST - ISHARES US EQUITetf/fund | — | $9.7M | 1.6% | 140K | +15% | — | — | 13F |
| 12 | Invesco Ltd. | Financials | $9.6M | 1.6% | 46K | +47% | 11+ qtrs | — | 13F | |
| 13 | Apple Inc. | Technology | $9.3M | 1.6% | 28K | +0.6% | 11+ qtrs | 75.7 | 13F | |
| 14 | — | PIMCO ETF TR - MULTISECTOR BDetf/fund | — | $8.8M | 1.5% | 347K | +8% | — | — | 13F |
| 15 | — | VANGUARD INDEX FDS - MRNGSTR GRWT ETFetf/fund | — | $8.7M | 1.5% | 97K | -1% | — | — | 13F |
| 16 | — | ISHARES TR - AGENCY BOND ETFnote | — | $8.3M | 1.4% | 78K | +4% | — | — | 13F |
| 17 | NVIDIA CORP | Technology | $8.0M | 1.3% | 35K | -2% | 11+ qtrsTrimmed 5 qtrs in a row | 86.0 | 13F | |
| 18 | — | ISHARES TR - IBONDS DEC 29etf/fund | — | $7.8M | 1.3% | 342K | +45% | — | — | 13F |
| 19 | IDEXX LABORATORIES INC /DE | Healthcare | $7.5M | 1.3% | 14K | +0.8% | 11+ qtrs | AI quality score is Pro: unlock with a free trial | 13F | |
| 20 | — | ISHARES TR - 3 7 YR TREAS BDetf/fund | — | $7.3M | 1.2% | 65K | +7% | — | — | 13F |
| 21 | — | ISHARES TR - CORE S&P MCP ETFetf/fund | — | $7.1M | 1.2% | 98K | +6% | — | — | 13F |
| 22 | Broadcom Inc. | Technology | $6.6M | 1.1% | 19K | -0.2% | 11+ qtrs | AI quality score is Pro: unlock with a free trial | 13F | |
| 23 | — | ISHARES TR - IBDS DEC28 ETFetf/fund | — | $6.2M | 1.0% | 247K | +53% | — | — | 13F |
| 24 | Alphabet Inc. | Technology | $6.1M | 1.0% | 18K | -2% | 11+ qtrs | AI quality score is Pro: unlock with a free trial | 13F | |
| 25 | KLA CORP | Technology | $6.0M | 1.0% | 31K | +2% | 11+ qtrs | AI quality score is Pro: unlock with a free trial | 13F | |
| 26 | — | HARBOR ETF TRUST - COMM ALL WEA ETF | — | $5.7M | 1.0% | 163K | -43% | |||
| 27 | $GOOG | Alphabet Inc. | Technology | $5.4M | 0.9% | 16K | +0.5% | |||
| 28 | $XOM.R34088 | EXXON MOBIL CORP | Energy | $5.2M | 0.9% | 32K | New | |||
| 29 | $WSM | WILLIAMS SONOMA INC | Consumer Discretionary | $5.2M | 0.9% | 23K | +1% | |||
| 30 | $TSM | TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD | Technology | $4.8M | 0.8% | 11K | +3% | |||
| 31 | $WELL | WELLTOWER INC. | Real Estate | $4.6M | 0.8% | 20K | -0.2% | |||
| 32 | $WM | WASTE MANAGEMENT INC | Utilities | $4.4M | 0.7% | 22K | +1% | |||
| 33 | $CAH | CARDINAL HEALTH INC | Consumer Staples | $4.4M | 0.7% | 20K | +0.9% | |||
| 34 | $AMGN | AMGEN INC | Healthcare | $4.4M | 0.7% | 10K | -0.0% | |||
| 35 | $LLY | ELI LILLY & Co | Healthcare | $4.3M | 0.7% | 3,719 | -0.9% | |||
| 36 | $BNY | Bank of New York Mellon Corp | Financials | $4.2M | 0.7% | 29K | +0.8% | |||
| 37 | $AMZN | AMAZON COM INC | Consumer Discretionary | $4.1M | 0.7% | 16K | +0.2% | |||
| 38 | $GLW | CORNING INC /NY | Materials | $3.9M | 0.7% | 26K | -12% | |||
| 39 | $PH | Parker-Hannifin Corp | Industrials | $3.9M | 0.7% | 4,123 | +1% | |||
| 40 | $JPM | JPMORGAN CHASE & CO | Financials | $3.8M | 0.6% | 12K | -0.3% | |||
| 41 | $VLO | VALERO ENERGY CORP/TX | Energy | $3.7M | 0.6% | 9,637 | -1% | |||
| 42 | $CAT | CATERPILLAR INC | Industrials | $3.6M | 0.6% | 4,464 | +4% | |||
| 43 | — | SPDR SERIES TRUST - ST PORT HIGH ETF | — | $3.6M | 0.6% | 159K | +5% | |||
| 44 | — | ISHARES TR - JPMORGAN USD EMG | — | $3.5M | 0.6% | 38K | +4% | |||
| 45 | — | SPDR SERIES TRUST - ST TERM HIGH ETF | — | $3.4M | 0.6% | 142K | +6% | |||
| 46 | — | ISHARES TR - ISHS 5-10YR INVT | — | $3.4M | 0.6% | 67K | +6% | |||
| 47 | — | ISHARES TR - GENOMICS IMMUN | — | $3.2M | 0.5% | 77K | New | |||
| 48 | $GRMN | GARMIN LTD | Technology | $3.2M | 0.5% | 11K | -0.3% | |||
| 49 | $UNM | Unum Group | Financials | $3.2M | 0.5% | 37K | +0.4% | |||
| 50 | $AU | AngloGold Ashanti PLC | Materials | $3.2M | 0.5% | 34K | -12% | |||
| 51 | — | SPDR SERIES TRUST - ST STR SP BIOT | — | $3.1M | 0.5% | 20K | +3% | |||
| 52 | — | GLOBAL X FDS - ARTIFICIAL ETF | — | $3.1M | 0.5% | 48K | +3% | |||
| 53 | — | FIRST TR EXCHANGE TRADED FD - NASD TECH DIV | — | $3.1M | 0.5% | 28K | -1.0% | |||
| 54 | — | FIRST TR EXCHANGE-TRADED FD - CLOUD COMPUTING | — | $3.1M | 0.5% | 19K | New | |||
| 55 | $ADP | AUTOMATIC DATA PROCESSING INC | Technology | $3.0M | 0.5% | 12K | -0.7% | |||
| 56 | $BLK | BlackRock, Inc. | Financials | $3.0M | 0.5% | 2,819 | -2% | |||
| 57 | — | GLOBAL X FDS - DATA CTR DIG ETF | — | $3.0M | 0.5% | 110K | +3% | |||
| 58 | — | ETF SER SOLUTIONS - DEFIA QUANT ETF | — | $3.0M | 0.5% | 20K | +4% | |||
| 59 | — | VANECK ETF TRUST - SEMICONDUCTR ETF | — | $2.9M | 0.5% | 4,814 | -5% | |||
| 60 | — | SPDR SERIES TRUST - ST STR SP TELCO | — | $2.8M | 0.5% | 14K | +4% | |||
| 61 | — | PGIM ETF TR - AAA CLO ETF | — | $2.8M | 0.5% | 55K | +7% | |||
| 62 | — | J P MORGAN EXCHANGE TRADED F - MORTGAGE BACKED | — | $2.8M | 0.5% | 57K | New | |||
| 63 | $AFL | AFLAC INC | Financials | $2.7M | 0.5% | 24K | +0.6% | |||
| 64 | $MPC | Marathon Petroleum Corp | Energy | $2.7M | 0.5% | 6,718 | New | |||
| 65 | — | VANECK ETF TRUST - GOLD MINERS ETF | — | $2.6M | 0.4% | 29K | New | |||
| 66 | $SPY | SPDR S&P 500 ETF TRUST | — | $2.6M | 0.4% | 3,388 | +22% | |||
| 67 | $CSCO | CISCO SYSTEMS, INC. | Technology | $2.6M | 0.4% | 24K | +54% | |||
| 68 | — | SPDR SERIES TRUST - ST STR SP PHARMA | — | $2.6M | 0.4% | 39K | New | |||
| 69 | $EBAY | EBAY INC | Consumer Discretionary | $2.5M | 0.4% | 24K | +125% | |||
| 70 | $R | RYDER SYSTEM INC | Consumer Discretionary | $2.5M | 0.4% | 11K | -0.7% | |||
| 71 | $MS | MORGAN STANLEY | Financials | $2.5M | 0.4% | 13K | -0.1% | |||
| 72 | $WMB | WILLIAMS COMPANIES, INC. | Energy | $2.5M | 0.4% | 36K | +0.8% | |||
| 73 | $NUE | NUCOR CORP | Materials | $2.4M | 0.4% | 10K | New | |||
| 74 | $CMI | CUMMINS INC | Industrials | $2.4M | 0.4% | 4,604 | +2% | |||
| 75 | $PAYX | PAYCHEX INC | Technology | $2.4M | 0.4% | 24K | -0.4% | |||
| 76 | $HD | HOME DEPOT, INC. | Consumer Discretionary | $2.3M | 0.4% | 8,144 | -2% | |||
| 77 | — | ISHARES TR - IBONDS DEC 2030 | — | $2.3M | 0.4% | 109K | +101% | |||
| 78 | $META | Meta Platforms, Inc. | Technology | $2.3M | 0.4% | 3,147 | -0.3% | |||
| 79 | $V | VISA INC. | Financials | $2.3M | 0.4% | 6,333 | +3% | |||
| 80 | $NEE | NEXTERA ENERGY INC | Utilities | $2.2M | 0.4% | 29K | -0.8% | |||
| 81 | $ABT | ABBOTT LABORATORIES | Healthcare | $2.2M | 0.4% | 22K | +4% | |||
| 82 | — | ISHARES TR - CORE S&P SCP ETF | — | $2.2M | 0.4% | 16K | +3% | |||
| 83 | $AMP | AMERIPRISE FINANCIAL INC | Financials | $2.1M | 0.3% | 4,172 | -0.6% | |||
| 84 | $PANW | Palo Alto Networks Inc | Technology | $2.0M | 0.3% | 5,074 | -7% | |||
| 85 | — | ISHARES TR - ESG MSCI KLD ETF | — | $1.9M | 0.3% | 13K | +4% | |||
| 86 | $COP | CONOCOPHILLIPS | Energy | $1.8M | 0.3% | 15K | -3% | |||
| 87 | — | SPDR INDEX SHS FDS - ST STR PO EX ETF | — | $1.8M | 0.3% | 36K | +1% | |||
| 88 | $CVX | CHEVRON CORP | Energy | $1.7M | 0.3% | 8,490 | +0.9% | |||
| 89 | $JNJ | JOHNSON & JOHNSON | Healthcare | $1.7M | 0.3% | 6,533 | +5% | |||
| 90 | — | VANGUARD INDEX FDS - S&P 500 ETF SHS | — | $1.7M | 0.3% | 2,440 | +3% | |||
| 91 | — | VANGUARD WHITEHALL FDS - HIGH DIV YLD | — | $1.7M | 0.3% | 11K | +6% | |||
| 92 | $TJX | TJX COMPANIES INC /DE/ | Consumer Discretionary | $1.7M | 0.3% | 13K | -2% | |||
| 93 | $APH | AMPHENOL CORP /DE/ | Technology | $1.6M | 0.3% | 19K | +115% | |||
| 94 | $SHEL | Shell plc | Energy | $1.6M | 0.3% | 17K | +5% | |||
| 95 | — | ISHARES TR - IBONDS 27 TRM TS | — | $1.5M | 0.3% | 68K | +17% | |||
| 96 | $BRK.B | BERKSHIRE HATHAWAY INC | Financials | $1.5M | 0.3% | 3,053 | -0.2% | |||
| 97 | — | ISHARES TR - IBONDS DEC 2031 | — | $1.5M | 0.3% | 75K | +95% | |||
| 98 | $QQQ | INVESCO QQQ TRUST, SERIES 1 | — | $1.5M | 0.3% | 1,978 | -9% | |||
| 99 | $HPE | Hewlett Packard Enterprise Co | Technology | $1.5M | 0.3% | 23K | New | |||
| 100 | $WMT | Walmart Inc. | Consumer Staples | $1.4M | 0.2% | 14K | -0.2% | |||
| 101 | — | VANGUARD SCOTTSDALE FDS - SHRT TRM CORP BD | — | $1.4M | 0.2% | 18K | -2% | |||
| 102 | $MRK | Merck & Co., Inc. | Healthcare | $1.4M | 0.2% | 9,599 | -0.0% | |||
| 103 | — | ISHARES TR - IBONDS 28 TRM TS | — | $1.4M | 0.2% | 62K | +19% | |||
| 104 | $ABBV | AbbVie Inc. | Healthcare | $1.4M | 0.2% | 5,204 | -3% | |||
| 105 | $TSLA | Tesla, Inc. | Consumer Discretionary | $1.3M | 0.2% | 3,642 | -0.8% | |||
| 106 | $EVR | Evercore Inc. | Financials | $1.3M | 0.2% | 4,963 | +2% | |||
| 107 | $ORCL | ORACLE CORP | Technology | $1.3M | 0.2% | 9,155 | -4% | |||
| 108 | — | ISHARES TR - IBONDS DEC 2032 | — | $1.2M | 0.2% | 52K | +109% | |||
| 109 | $ECL | ECOLAB INC. | Materials | $1.2M | 0.2% | 4,529 | -0.1% | |||
| 110 | — | VANGUARD SPECIALIZED FUNDS - DIV APP ETF | — | $1.2M | 0.2% | 5,244 | -2% | |||
| 111 | $NOK | NOKIA CORP | Technology | $1.2M | 0.2% | 120K | +16% | |||
| 112 | $LRCX | LAM RESEARCH CORP | Technology | $1.2M | 0.2% | 3,618 | -0.5% | |||
| 113 | — | VANGUARD INDEX FDS - MRNGSTR MID CAP | — | $1.2M | 0.2% | 15K | -2% | |||
| 114 | — | ISHARES TR - IBONDS 29 TRM TS | — | $1.1M | 0.2% | 54K | +45% | |||
| 115 | $DELL | Dell Technologies Inc. | Technology | $1.1M | 0.2% | 2,077 | -15% | |||
| 116 | $WT | WisdomTree, Inc. | Financials | $1.1M | 0.2% | 20K | -2% | |||
| 117 | $NTAP | NetApp, Inc. | Technology | $1.1M | 0.2% | 5,250 | New | |||
| 118 | — | ISHARES TR - ESG AWR MSCI USA | — | $1.1M | 0.2% | 6,587 | +4% | |||
| 119 | — | VANGUARD WORLD FD - HEALTH CAR ETF | — | $1.1M | 0.2% | 3,397 | +0.3% | |||
| 120 | $WT | WisdomTree, Inc. | Financials | $1.1M | 0.2% | 19K | -1% | |||
| 121 | $KO | COCA COLA CO | Consumer Staples | $1.1M | 0.2% | 12K | -2% | |||
| 122 | $LIN | LINDE PLC | Materials | $1.0M | 0.2% | 2,195 | -12% | |||
| 123 | $AXP | AMERICAN EXPRESS CO | Financials | $1.0M | 0.2% | 3,420 | -8% | |||
| 124 | $TXN | TEXAS INSTRUMENTS INC | Technology | $1.0M | 0.2% | 3,630 | -0.2% | |||
| 125 | — | J P MORGAN EXCHANGE TRADED F - NASDAQ EQT PREM | — | $1.0M | 0.2% | 16K | -1% | |||
| 126 | — | FIRST TR EXCHANGE-TRADED FD - NO AMER ENERGY | — | $1.0M | 0.2% | 25K | -1% | |||
| 127 | $ACN | Accenture plc | Technology | $989K | 0.2% | 5,391 | +40% | |||
| 128 | $PCAR | PACCAR INC | Industrials | $955K | 0.2% | 8,697 | — | |||
| 129 | $ETN | Eaton Corp plc | Industrials | $948K | 0.2% | 2,205 | +0.5% | |||
| 130 | $NFLX | NETFLIX INC | Communication Services | $941K | 0.2% | 14K | -0.4% | |||
| 131 | — | ISHARES TR - IBONDS DEC2026 | — | $934K | 0.2% | 39K | -25% | |||
| 132 | $MA | Mastercard Inc | Financials | $930K | 0.2% | 1,686 | +4% | |||
| 133 | $STT | STATE STREET CORP | Financials | $925K | 0.2% | 5,297 | New | |||
| 134 | — | ISHARES TR - ESG AWARE MSCI | — | $900K | 0.1% | 17K | +5% | |||
| 135 | — | ISHARES TR - ESG AW MSCI EAFE | — | $886K | 0.1% | 8,594 | +5% | |||
| 136 | $WAT | WATERS CORP /DE/ | Healthcare | $848K | 0.1% | 1,929 | -13% | |||
| 137 | $PKG | PACKAGING CORP OF AMERICA | Materials | $845K | 0.1% | 3,685 | +1% | |||
| 138 | $IVZ | Invesco Ltd. | Financials | $824K | 0.1% | 13K | +0.3% | |||
| 139 | — | ISHARES TR - ISHS 1-5YR INVS | — | $805K | 0.1% | 16K | -1% | |||
| 140 | $RTX | RTX Corp | Industrials | $742K | 0.1% | 3,995 | +12% | |||
| 141 | $SYK | STRYKER CORP | Healthcare | $740K | 0.1% | 2,688 | -0.6% | |||
| 142 | $BAC | BANK OF AMERICA CORP /DE/ | Financials | $727K | 0.1% | 13K | -4% | |||
| 143 | $DHR | DANAHER CORP /DE/ | Healthcare | $721K | 0.1% | 3,256 | +5% | |||
| 144 | $QCOM | QUALCOMM INC/DE | Technology | $712K | 0.1% | 3,867 | -4% | |||
| 145 | $VRTX | VERTEX PHARMACEUTICALS INC / MA | Healthcare | $694K | 0.1% | 1,327 | -1% | |||
| 146 | $EMR | EMERSON ELECTRIC CO | Industrials | $683K | 0.1% | 4,403 | -0.6% | |||
| 147 | — | ISHARES TR - IBONDS 26 TRM TS | — | $680K | 0.1% | 30K | -33% | |||
| 148 | — | ISHARES TR - IBONDS DEC 2033 | — | $670K | 0.1% | 27K | +187% | |||
| 149 | — | ISHARES TR - MSCI EAFE ETF | — | $653K | 0.1% | 6,287 | — | |||
| 150 | $CARR | CARRIER GLOBAL Corp | Industrials | $647K | 0.1% | 12K | +2% |
What changed in Q3 2026
Against the previous quarter's 13F: 20 new, 104 added to, 102 trimmed, 22 sold out. Share-count changes; largest moves by dollar size first.
New positions (20)
$XOM.R34088EXXON MOBIL CORP$5.2M
first bought this quarter
- ISHARES TR - GENOMICS IMMUN$3.2M
first bought this quarter
- FIRST TR EXCHANGE-TRADED FD - CLOUD COMPUTING$3.1M
first bought this quarter
- J P MORGAN EXCHANGE TRADED F - MORTGAGE BACKED$2.8M
first bought this quarter
$MPCMarathon Petroleum Corp$2.7M
first bought this quarter
- VANECK ETF TRUST - GOLD MINERS ETF$2.6M
first bought this quarter
+14 more in the Excel export
Added to (104)
now $9.6M · held 11+ qtrs
- ISHARES TR - IBONDS DEC 29+45%
now $7.8M
- ISHARES TR - IBONDS 27 ETF+30%
now $10.2M
- ISHARES TR - IBDS DEC28 ETF+53%
now $6.2M
$EBAYEBAY INC+125%
now $2.5M · held 5 qtrs
- BLACKROCK ETF TRUST - ISHARES US EQUIT+15%
now $9.7M
+98 more in the Excel export
Trimmed (102)
- HARBOR ETF TRUST - COMM ALL WEA ETF-43%
now $5.7M
$GLWCORNING INC /NY-12%
now $3.9M · held 5 qtrs, 2 trims in a row
$AUAngloGold Ashanti PLC-12%
now $3.2M · held 6 qtrs
- VANGUARD SCOTTSDALE FDS - INT-TERM CORP-47%
now $395K
- ISHARES TR - IBONDS 26 TRM TS-33%
now $680K
- ISHARES TR - IBONDS DEC2026-25%
now $934K
+96 more in the Excel export
Sold out (22)
$TPRTAPESTRY, INC.was $3.4M
held 4 qtrs
- FIRST TR EXCHANGE TRADED FD - RBA INDL ETFwas $3.1M
$CHRWC. H. ROBINSON WORLDWIDE, INC.was $3.0M
held 2 qtrs
- ISHARES TR - US AER DEF ETFwas $2.9M
- INVESCO EXCHANGE TRADED FD T - BLDG CONSTR ETFwas $2.9M
- DOUBLELINE ETF TRUST - MORTGAGE ETFwas $2.7M
+16 more in the Excel export
Holdings by quarter
Every 13F Great Diamond Partners, LLC has filed, 27 earlier quarters. Pick one to see what it held then.
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Q3 2026 13F filed with the SEC on Oct 13, 2026. Prices are closing prices as of Oct 26, 2026.
Average quality of Great Diamond Partners's top 20 holdings: 74/100 (our AI quality score, weighted by position size; 18 of the 20 are scored)
Top 10 since filing
-2.8%
Value-weighted move of the 10 largest stock positions
Turnover
7%
Last quarter; 35% over the last 4
Top 10 weight
30%
Share of the stock portfolio in its 10 largest positions
Held 4+ quarters
91%
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
Great Diamond Partners, LLC disclosed 238 positions worth $595.5M in its Form 13F-HR for Q3 2026. During the quarter the fund opened 20 new positions and exited 22 — including a new stake in $XOM.R34088 and a full exit from $TPR. The portfolio is most concentrated in Other (53.7% of disclosed assets). All figures are sourced directly from Great Diamond Partners, LLC’s Form 13F-HR filing with the SEC under CIK 1801112.
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AI-Powered Hedge Fund Analysis: Great Diamond Partners, LLC
13F Pro is an AI hedge fund tracker and stock research platform. For Great Diamond Partners, LLC (SEC CIK: 1801112), the platform ingests every quarterly Form 13F filing and applies AI-powered analysis on top — 10 specialized AI analysts (value, growth, momentum, macro, activist, and more) debate the fund's top positions and publish AI-generated analysis with cited SEC sources.
Every holding in Great Diamond Partners, 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.