American Investment Services, Inc.

In its 13F for Q1 2026 (holdings as of March 31, 2026, filed May 13, 2026), American Investment Services, Inc. reported 132 stock positions worth $448.3 million. Its top holding was SPDR Gold Minishares Trust (GLDM) at 9.7% of the portfolio, followed by Vanguard Mrngstar GR ETF-Sui (VUG, 7.7%) and Dimensional US Marketwide Va (DFUV, 5.2%). Compared with Q4 2025, it opened 7 new positions, sold out of 4, added to 43 and reduced 45. The biggest buy was Vanguard Short Tax-Ex Bond (VSDM, shares +2707%) and the biggest sale SPDR Gold Minishares Trust (GLDM, shares −9%).

Most Recent 13F
Q2 2026
Location
GREAT BARRINGTON, MA
CIK
0001369913
Portfolio Value
$448.3M (Q1 2026)
SEC Filing
0001369913-26-000002 ↗ filed May 13, 2026

Holdings Value

0$200.0M$400.0M$600.0M Q1 2024: $564.2M Q1 2024 Q2 2024: $564.7M Q2 2024 Q3 2024: $598.7M Q3 2024 Q4 2024: $565.0M Q4 2024 Q1 2025: $568.1M Q1 2025 Q2 2025: $391.8M Q2 2025 Q3 2025: $416.2M Q3 2025 Q4 2025: $430.9M Q4 2025 Q1 2026: $448.3M $448.3M Q1 2026 Q2 2026: $473.3M Q2 2026

Holdings 132 stocks · $448.3M
GLDM SPDR Gold Minishares Trust 9.70% 469,354 $43.5M Reduce -8.5%
VUG Vanguard Mrngstar GR ETF-Sui 7.73% 79,321 $34.6M Add +0.1%
DFUV Dimensional US Marketwide Va 5.19% 480,336 $23.3M Reduce -1.1%
VYMI Vanguard Int High DVD YLD Inc. 4.57% 217,344 $20.5M Reduce -3.3%
DFIC Dimensional International Co. 3.15% 397,581 $14.1M Add +2.6%
DFAS Dimensional US Small Cap ETF 2.84% 179,294 $12.8M Reduce -1.5%
DFUS Dimensional US Eq MKT ETF 2.74% 173,415 $12.3M Add +7.1%
CVX Chevron Corp. 2.64% 57,149 $11.8M Reduce -0.7%
VTV Vanguard Mrngstr Val ETF-Aui 2.63% 60,090 $11.8M Add +0.8%
VPU Vanguard Utilities ETF 2.35% 53,259 $10.6M Reduce -1.2%
VZ Verizon Communications Inc. 2.13% 189,997 $9.5M Reduce -6.9%
DFGR Dim Global Real Estate ETF 2.13% 358,613 $9.5M Add +7.2%
DFEM Dimensional Emrg MRKT Core 2.08% 269,564 $9.3M Add +1.6%
DFAT Dimensional US Target Value 1.99% 142,654 $8.9M Reduce -1.9%
VSDM Vanguard Short Tax-Ex Bond 1.98% 116,464 $8.9M Add +2707.0%
DFAW Dimensional World Eqty ETF 1.87% 113,542 $8.4M Add +1.0%
VEA Vanguard Ftse Developed ETF 1.80% 126,020 $8.1M Reduce -3.1%
IAU iShares Gold Trust 1.79% 91,176 $8.0M Reduce -10.8%
MRK Merck & Co. Inc. 1.78% 66,477 $8.0M Add +19.1%
DFAX Dimensional World Ex US Core 1.76% 232,367 $7.9M Reduce -2.1%
VBR Vngrd Mrngst SL-CP Val ETF-U 1.49% 30,794 $6.7M Add +0.5%
VB Vanguard Most SM-Cap ETF-Usd 1.48% 25,368 $6.6M Add +1.6%
VNQ Vanguard Real Estate ETF 1.41% 71,349 $6.3M Add +1.0%
SHV iShares 0-1 Year Treasury Bo 1.26% 51,075 $5.6M Add +1.9%
DFSV Dimensional US Small Cap Val 1.21% 154,956 $5.4M Add +2.4%
JNJ Johnson & Johnson 1.21% 22,137 $5.4M Reduce -5.1%
VOO Vanguard S&P 500 ETF 1.15% 8,609 $5.1M Add +4.4%
AMGN Amgen Inc. 1.10% 13,992 $4.9M Add +13.2%
DFNM Dimensional National Muni BD 1.05% 98,018 $4.7M Add +24.2%
DFLV Dim US Large Cap Value ETF 1.04% 130,052 $4.6M Add +16.9%
SCHO Schwab Short-Term US Treas 0.98% 180,905 $4.4M Add +10.9%
VTEB Vanguard Tax-Exempt Bond ETF 0.91% 81,673 $4.1M Reduce -1.3%
VWO Vanguard Ftse Emerging Marke 0.85% 70,126 $3.8M Reduce -0.3%
SPDW Ste STR SPDR PT DW Eu ETF 0.75% 73,823 $3.4M Reduce -3.1%
SPYV SS SPDR P S&P 500 Value ETF 0.74% 58,647 $3.3M Reduce -1.0%
VCIT Vanguard Int-Term Corporate 0.71% 38,520 $3.2M Add +0.2%
VGSH Vanguard Short-Term Treasury 0.66% 50,210 $2.9M Add +2.1%
SHY iShares 1-3 Year Treasury Bo 0.62% 33,825 $2.8M Reduce -4.0%
DFAI Dimensional International Co. 0.62% 71,471 $2.8M Add +2.3%
BRK.B Berkshire Hathaway Inc. Class B 0.61% 5,677 $2.7M No change
SCHB Schwab US Broad Market ETF 0.58% 102,885 $2.6M Reduce -10.2%
BSV Vanguard Short-Term Bond ETF 0.56% 32,288 $2.5M Add +11.7%
SPYM Ste STR SPDR PT S&P 500 ETF 0.55% 32,300 $2.5M Reduce -2.3%
AGG iShares Core U.S. Aggregate 0.50% 22,794 $2.3M Add +11.7%
SCHA Schwab US Small-Cap ETF 0.50% 76,343 $2.2M Reduce -2.7%
VTI VG Morningstar TS MKT ETF-US 0.49% 6,833 $2.2M Reduce -0.3%
SCHX Schwab US Large-Cap ETF 0.49% 85,125 $2.2M Reduce -0.5%
DFGP Dimensional GLBL Core PL Fix 0.43% 36,094 $1.9M Add +5.3%
DFIV Dimensional International Va 0.42% 35,620 $1.9M No change
DFSD Dimensional Short Duration 0.42% 38,867 $1.9M Add +8.2%
IVW iShares S&P 500 Growth ETF 0.41% 16,412 $1.9M Reduce -2.4%
RSP Invesco S&P 500 Equal Weight 0.41% 9,522 $1.8M No change
DFAU Dimensional US Core Equity M 0.41% 40,449 $1.8M Add +4.2%
VV Vngrd Mrgstr LRG-Cap ETF-Usd 0.39% 5,912 $1.8M Add +1.5%
TIP iShares Tips Bond ETF 0.37% 14,979 $1.7M Add +2.1%
IJS iShares S&P Small-Cap 600 Va 0.33% 12,416 $1.5M Reduce -2.7%
IWF iShares Russell 1000 Growth 0.33% 3,436 $1.5M Reduce -3.8%
DFAE Dimensional Emerging Core Eq 0.32% 42,805 $1.4M Add +2.5%
DUHP Dimensional US High Profi Et 0.30% 36,631 $1.3M Reduce -2.6%
BND Vanguard Total Bond Market 0.29% 17,843 $1.3M Add +16.3%
LLY Eli Lilly & Co. 0.29% 1,409 $1.3M Add +1.0%
SCHF Schwab Intl Equity ETF 0.29% 51,951 $1.3M No change
SLYV SS SPDR S&P 600 SC Val ETF 0.29% 13,581 $1.3M No change
VONE Vanguard Russell 1000 0.28% 4,281 $1.3M Reduce -3.3%
UNH Unitedhealth Group Inc. 0.23% 3,802 $1.0M New
IBM Intl Business Machines Corp. filed as INTERNATIONAL BUSINESS MACHS 0.23% 4,179 $1.0M Reduce -56.6%
SCHE Schwab Emrg Mrkts Eqty ETF 0.22% 29,486 $972K No change
PLD Prologis Inc. 0.21% 7,070 $935K No change
SPEM State Street SP PTF Em ETF 0.21% 19,609 $920K Reduce -0.4%
EQIX Equinix Inc. 0.20% 929 $911K No change
IWD iShares Russell 1000 Value E 0.19% 4,076 $871K No change
VSDB Vanguard Short Dur Bond ETF 0.18% 10,834 $826K Reduce -23.9%
VTIP Vanguard Short-Term Tips 0.17% 15,426 $771K Add +31.0%
XOM Exxon Mobil Corp. 0.17% 4,539 $770K Reduce -22.4%
BRK.A Berkshire Hathaway Inc. Class A 0.16% 1 $718K No change
NEE Nextera Energy Inc. 0.16% 7,586 $705K No change
HD Home Depot Inc. 0.16% 2,140 $704K No change
DFVX Dim US Large Cap Vector ETF 0.15% 9,210 $684K Reduce -21.1%
SPSM SS SPDR P S&P 600 Small Cap 0.15% 14,119 $682K No change
JPM JPMorgan Chase & Co. 0.15% 2,302 $677K No change
IJR iShares Core S&P Small-Cap E 0.15% 5,437 $676K Reduce -2.9%
IBKR Interactive Brokers Gro Class A 0.15% 10,000 $671K New
IVV iShares Core S&P 500 ETF 0.15% 1,025 $669K Reduce -0.6%
IWM iShares Russell 2000 ETF 0.14% 2,477 $614K No change
PEP Pepsico Inc. 0.14% 3,951 $614K No change
EEM iShares MSCI Emerging Market 0.14% 10,794 $613K Reduce -2.0%
VGT Vanguard Info Tech ETF 0.13% 849 $592K Add +2.2%
DFAR Dimensional US Real Est ETF 0.13% 23,702 $561K Add +0.0%
AMT American Tower Corp. 0.13% 3,248 $561K Reduce -9.8%
DOW Dow Inc. filed as DOW HLDGS INC 0.12% 13,290 $554K Reduce -65.4%
DLR Digital Realty Trust Inc. 0.12% 3,030 $546K No change
KO The Coca-Cola Co. 0.12% 7,143 $543K Reduce -0.2%
CI The Cigna Group 0.12% 2,033 $542K No change
SPY SS SPDR S&P 500 ETF Trust-US 0.12% 823 $535K Reduce -5.1%
NKE Nike Inc. Class B 0.12% 9,758 $515K New
GE General Electric filed as GE AEROSPACE 0.11% 1,803 $512K Add +3.3%
AAPL Apple Inc. 0.11% 2,010 $510K Reduce -0.9%
PG The Procter & Gamble Co. 0.11% 3,522 $509K No change
SPG Simon Property Group Inc. 0.11% 2,656 $495K No change
SCHV Schwab US Large-Cap Value 0.11% 15,663 $478K No change
O Realty Income Corp. 0.10% 7,526 $460K No change
PSA Public Storage 0.10% 1,626 $440K No change
VCEB Vanguard ESG US Corp. Bond 0.09% 6,718 $422K Add +2.1%
JCI Johnson Controls Internation 0.09% 3,130 $410K No change
CL Colgate-Palmolive Co. 0.09% 4,800 $409K No change
ICF iShares Select U.S. REIT ETF 0.09% 6,384 $395K No change
EFA iShares MSCI Eafe ETF 0.08% 3,704 $360K No change
IVE iShares S&P 500 Value ETF 0.08% 1,666 $352K No change
IRM Iron Mountain Inc. filed as IRON MTN INC DEL 0.08% 3,304 $337K Add +6.5%
BNDX Vanguard Total Intl Bond ETF 0.08% 7,020 $337K Reduce -8.6%
AMZN Amazon.com Inc. 0.07% 1,590 $331K New
HIG Hartford Insurance Group Inc. 0.07% 2,423 $328K No change
MSFT Microsoft Corp. 0.07% 876 $324K Add +3.1%
DFCF Dimensional Core Fixed Inc. 0.07% 7,592 $321K Reduce -69.0%
VIG Vanguard Dividend Apprec ETF 0.07% 1,427 $307K Add +3.0%
VICI Vici Properties Inc. filed as VICI PPTYS INC 0.07% 11,092 $303K No change
DFEV Dimensional Emrg MRKT Val 0.07% 8,376 $300K Reduce -6.5%
EXR Extra Space Storage Inc. 0.07% 2,249 $295K No change
CCI Crown Castle Inc. 0.07% 3,614 $294K Reduce -9.0%
HON Honeywell International Inc. 0.06% 1,200 $271K New
VXUS Vanguard Total Intl Stock 0.06% 3,485 $269K Add +5.9%
BNDW Vanguard Total World Bond Et 0.06% 3,707 $253K Reduce -17.6%
MDT Medtronic PLC 0.06% 2,868 $249K No change
XLK SS Technology Select Sector 0.05% 1,848 $246K No change
AVB Avalonbay Communities Inc. 0.05% 1,481 $242K No change
IWC iShares Micro-Cap ETF 0.05% 1,492 $238K No change
TEL Te Connectivity PLC 0.05% 1,124 $235K No change
VT Vanguard Tot World STK ETF 0.05% 1,697 $235K New
AMD Advanced Micro Devices 0.05% 1,136 $231K Add +11.6%
VTC Vanguard Total Corporate BND 0.05% 3,007 $231K Add +0.1%
VMRK Vivmark Residential filed as EQUITY RESIDENTIAL 0.05% 3,665 $217K No change
VCSH Vanguard S/T Corp. Bond ETF 0.05% 2,600 $206K New

Portfolio Sells Q4 2025 → Q1 2026
GLDM SPDR Gold Minishares Trust Reduce -8.5% 9.70% −0.46
IBM Intl Business Machines Corp. Reduce -56.6% 0.23% −0.44
CSCO Cisco Systems Inc. Sold out 0.00% −0.17
DFCF Dimensional Core Fixed Inc. Reduce -69.0% 0.07% −0.17
CAT Caterpillar Inc. Sold out 0.00% −0.14
IAU iShares Gold Trust Reduce -10.8% 1.79% −0.13
VYMI Vanguard Int High DVD YLD Inc. Reduce -3.3% 4.57% −0.12
SCHB Schwab US Broad Market ETF Reduce -10.2% 0.58% −0.12
DFAS Dimensional US Small Cap ETF Reduce -1.5% 2.84% −0.10
VEA Vanguard Ftse Developed ETF Reduce -3.1% 1.80% −0.08
DOW Dow Inc. Reduce -65.4% 0.12% −0.08
VSDB Vanguard Short Dur Bond ETF Reduce -23.9% 0.18% −0.07
IVW iShares S&P 500 Growth ETF Reduce -2.4% 0.41% −0.07
IWF iShares Russell 1000 Growth Reduce -3.8% 0.33% −0.07
SPYM Ste STR SPDR PT S&P 500 ETF Reduce -2.3% 0.55% −0.06
DFUV Dimensional US Marketwide Va Reduce -1.1% 5.19% −0.06
VTEB Vanguard Tax-Exempt Bond ETF Reduce -1.3% 0.91% −0.06
SHY iShares 1-3 Year Treasury Bo Reduce -4.0% 0.62% −0.05
SBAC SBA Communications Corp. Sold out 0.00% −0.05
DFVX Dim US Large Cap Vector ETF Reduce -21.1% 0.15% −0.05
SCHX Schwab US Large-Cap ETF Reduce -0.5% 0.49% −0.05
PFE Pfizer Inc. Sold out 0.00% −0.05
VTI VG Morningstar TS MKT ETF-US Reduce -0.3% 0.49% −0.04
DFAX Dimensional World Ex US Core Reduce -2.1% 1.76% −0.04
SPYV SS SPDR P S&P 500 Value ETF Reduce -1.0% 0.74% −0.04
VONE Vanguard Russell 1000 Reduce -3.3% 0.28% −0.04
SPDW Ste STR SPDR PT DW Eu ETF Reduce -3.1% 0.75% −0.03
VWO Vanguard Ftse Emerging Marke Reduce -0.3% 0.85% −0.03
DUHP Dimensional US High Profi Et Reduce -2.6% 0.30% −0.03
SCHA Schwab US Small-Cap ETF Reduce -2.7% 0.50% −0.02
DFAT Dimensional US Target Value Reduce -1.9% 1.99% −0.02
AMT American Tower Corp. Reduce -9.8% 0.13% −0.02
SPY SS SPDR S&P 500 ETF Trust-US Reduce -5.1% 0.12% −0.02
CCI Crown Castle Inc. Reduce -9.0% 0.07% −0.02
BNDW Vanguard Total World Bond Et Reduce -17.6% 0.06% −0.02
IVV iShares Core S&P 500 ETF Reduce -0.6% 0.15% −0.01
AAPL Apple Inc. Reduce -0.9% 0.11% −0.01
BNDX Vanguard Total Intl Bond ETF Reduce -8.6% 0.08% −0.01
IJS iShares S&P Small-Cap 600 Va Reduce -2.7% 0.33% −0.01
SPEM State Street SP PTF Em ETF Reduce -0.4% 0.21% −0.01
IJR iShares Core S&P Small-Cap E Reduce -2.9% 0.15% −0.01
DFEV Dimensional Emrg MRKT Val Reduce -6.5% 0.07% −0.00
EEM iShares MSCI Emerging Market Reduce -2.0% 0.14% −0.00
KO The Coca-Cola Co. Reduce -0.2% 0.12% +0.01
XOM Exxon Mobil Corp. Reduce -22.4% 0.17% +0.01
VPU Vanguard Utilities ETF Reduce -1.2% 2.35% +0.04
JNJ Johnson & Johnson Reduce -5.1% 1.21% +0.09
VZ Verizon Communications Inc. Reduce -6.9% 2.13% +0.20
CVX Chevron Corp. Reduce -0.7% 2.64% +0.60

Portfolio Buys Q4 2025 → Q1 2026
VSDM Vanguard Short Tax-Ex Bond Add +2707.0% 1.98% +1.91
MRK Merck & Co. Inc. Add +19.1% 1.78% +0.42
UNH Unitedhealth Group Inc. New 0.23% +0.23
DFNM Dimensional National Muni BD Add +24.2% 1.05% +0.17
AMGN Amgen Inc. Add +13.2% 1.10% +0.16
DFLV Dim US Large Cap Value ETF Add +16.9% 1.04% +0.15
IBKR Interactive Brokers Gro Class A New 0.15% +0.15
NKE Nike Inc. Class B New 0.12% +0.12
DFGR Dim Global Real Estate ETF Add +7.2% 2.13% +0.07
AMZN Amazon.com Inc. New 0.07% +0.07
HON Honeywell International Inc. New 0.06% +0.06
SCHO Schwab Short-Term US Treas Add +10.9% 0.98% +0.06
DFSV Dimensional US Small Cap Val Add +2.4% 1.21% +0.06
DFIC Dimensional International Co. Add +2.6% 3.15% +0.05
VT Vanguard Tot World STK ETF New 0.05% +0.05
VCSH Vanguard S/T Corp. Bond ETF New 0.05% +0.05
DFEM Dimensional Emrg MRKT Core Add +1.6% 2.08% +0.04
VTIP Vanguard Short-Term Tips Add +31.0% 0.17% +0.04
BSV Vanguard Short-Term Bond ETF Add +11.7% 0.56% +0.04
AGG iShares Core U.S. Aggregate Add +11.7% 0.50% +0.03
BND Vanguard Total Bond Market Add +16.3% 0.29% +0.03
IRM Iron Mountain Inc. Add +6.5% 0.08% +0.02
DFSD Dimensional Short Duration Add +8.2% 0.42% +0.02
DFAE Dimensional Emerging Core Eq Add +2.5% 0.32% +0.01
DFGP Dimensional GLBL Core PL Fix Add +5.3% 0.43% +0.00
DFAI Dimensional International Co. Add +2.3% 0.62% +0.00
VXUS Vanguard Total Intl Stock Add +5.9% 0.06% +0.00
AMD Advanced Micro Devices Add +11.6% 0.05% +0.00
DFAR Dimensional US Real Est ETF Add +0.0% 0.13% −0.00
VIG Vanguard Dividend Apprec ETF Add +3.0% 0.07% −0.00
VTC Vanguard Total Corporate BND Add +0.1% 0.05% −0.00
VCEB Vanguard ESG US Corp. Bond Add +2.1% 0.09% −0.00
TIP iShares Tips Bond ETF Add +2.1% 0.37% −0.01
GE General Electric Add +3.3% 0.11% −0.01
VB Vanguard Most SM-Cap ETF-Usd Add +1.6% 1.48% −0.01
VGT Vanguard Info Tech ETF Add +2.2% 0.13% −0.01
VTV Vanguard Mrngstr Val ETF-Aui Add +0.8% 2.63% −0.01
VBR Vngrd Mrngst SL-CP Val ETF-U Add +0.5% 1.49% −0.01
DFAU Dimensional US Core Equity M Add +4.2% 0.41% −0.01
VGSH Vanguard Short-Term Treasury Add +2.1% 0.66% −0.01
MSFT Microsoft Corp. Add +3.1% 0.07% −0.02
SHV iShares 0-1 Year Treasury Bo Add +1.9% 1.26% −0.02
VV Vngrd Mrgstr LRG-Cap ETF-Usd Add +1.5% 0.39% −0.03
VCIT Vanguard Int-Term Corporate Add +0.2% 0.71% −0.04
VNQ Vanguard Real Estate ETF Add +1.0% 1.41% −0.04
DFUS Dimensional US Eq MKT ETF Add +7.1% 2.74% −0.04
VOO Vanguard S&P 500 ETF Add +4.4% 1.15% −0.05
LLY Eli Lilly & Co. Add +1.0% 0.29% −0.06
DFAW Dimensional World Eqty ETF Add +1.0% 1.87% −0.06
VUG Vanguard Mrngstar GR ETF-Sui Add +0.1% 7.73% −1.24

All Filings

QuarterPositions13F Reported ValueTop Holdings
Q2 2026 133$473.3MGLDM, VUG, DFUV, VYMI, DFAS
Q1 2026 132$448.3MGLDM, VUG, DFUV, VYMI, DFIC
Q4 2025 129$430.9MGLDM, VUG, DFUV, VYMI, DFIC
Q3 2025 134$416.2MGLDM, VUG, DFUV, VYMI, DFIC
Q2 2025 133$391.8MGLDM, VUG, DFUV, VYMI, DFAS
Q1 2025 157$568.1MGLDM, DFUS, VUG, DFUV, VYMI
Q4 2024Amended 157$565.0MVUG, DFUS, GLDM, DFUV, VYMI
Q3 2024 157$598.7MVUG, DFUS, GLDM, DFUV, SCHB
Q2 2024 156$564.7MVUG, DFUS, GLDM, DFUV, SCHB
Q1 2024 155$564.2MGLDM, DFUV, DFUS, VUG, SCHB