Q1 2026 · 13F-HR
American Investment Services, Inc.holdings as filed
Filed 2026-05-13 · accession 0001369913-26-000002
$448.3M
Reported value
132
Positions
2026-03-31
Period end
The Brief · American Investment Services, Inc. · Q1 2026
AI · grounded in 13F
American Investment Services, Inc. significantly increased its stake in VSDM by 2,707.04%. The fund established a new position in UNH valued at $1,028,784 and grew its holding in DFNM by 24.23%. Conversely, the fund exited positions in CSCO and CAT, reducing its exposure by $736,947 and $597,504 respectively.
Holdings as filed
| CUSIP | Ticker | Issuer | Value | % port. | Shares | Class | Voting |
|---|---|---|---|---|---|---|---|
| 98149E303 | GLDM | WORLD GOLD TR | $43.5M | 9.70% | 469,354 | Common | SOLE |
| 922908736 | VUG | VANGUARD INDEX FDS | $34.6M | 7.73% | 79,321 | Common | SOLE |
| 25434V724 | DFUV | DIMENSIONAL ETF TRUST | $23.3M | 5.19% | 480,336 | Common | SOLE |
| 921946794 | VYMI | VANGUARD WHITEHALL FDS | $20.5M | 4.57% | 217,344 | Common | SOLE |
| 25434V799 | DFIC | DIMENSIONAL ETF TRUST | $14.1M | 3.15% | 397,581 | Common | SOLE |
| 25434V500 | DFAS | DIMENSIONAL ETF TRUST | $12.8M | 2.84% | 179,294 | Common | SOLE |
| 25434V401 | DFUS | DIMENSIONAL ETF TRUST | $12.3M | 2.74% | 173,415 | Common | SOLE |
| 166764100 | CVX | CHEVRON CORPORATION | $11.8M | 2.64% | 57,149 | Common | SOLE |
| 922908744 | VTV | VANGUARD INDEX FDS | $11.8M | 2.63% | 60,090 | Common | SOLE |
| 92204A876 | VPU | VANGUARD WORLD FD | $10.6M | 2.35% | 53,259 | Common | SOLE |
| 92343V104 | VZ | VERIZON COMMUNICATIONS INC | $9.5M | 2.13% | 189,997 | Common | SOLE |
| 25434V658 | DFGR | DIMENSIONAL ETF TRUST | $9.5M | 2.13% | 358,613 | Common | SOLE |
| 25434V732 | DFEM | DIMENSIONAL ETF TRUST | $9.3M | 2.08% | 269,564 | Common | SOLE |
| 25434V609 | DFAT | DIMENSIONAL ETF TRUST | $8.9M | 1.99% | 142,654 | Common | SOLE |
| 922907696 | VSDM | VANGUARD MUN BD FDS | $8.9M | 1.98% | 116,464 | Common | SOLE |
| 25434V617 | DFAW | DIMENSIONAL ETF TRUST | $8.4M | 1.87% | 113,542 | Common | SOLE |
| 921943858 | VEA | VANGUARD TAX-MANAGED FDS | $8.1M | 1.80% | 126,020 | Common | SOLE |
| 464285204 | IAU | ISHARES GOLD TR | $8.0M | 1.79% | 91,176 | Common | SOLE |
| 58933Y105 | MRK | MERCK & CO INC | $8.0M | 1.78% | 66,477 | Common | SOLE |
| 25434V880 | DFAX | DIMENSIONAL ETF TRUST | $7.9M | 1.76% | 232,367 | Common | SOLE |
| 922908611 | VBR | VANGUARD INDEX FDS | $6.7M | 1.49% | 30,794 | Common | SOLE |
| 922908751 | VB | VANGUARD INDEX FDS | $6.6M | 1.48% | 25,368 | Common | SOLE |
| 922908553 | VNQ | VANGUARD INDEX FDS | $6.3M | 1.41% | 71,349 | Common | SOLE |
| 464288679 | SHV | ISHARES TR | $5.6M | 1.26% | 51,075 | Common | SOLE |
| 25434V815 | DFSV | DIMENSIONAL ETF TRUST | $5.4M | 1.21% | 154,956 | Common | SOLE |
| 478160104 | JNJ | JOHNSON & JOHNSON | $5.4M | 1.21% | 22,137 | Common | SOLE |
| 922908363 | VOO | VANGUARD INDEX FDS | $5.1M | 1.15% | 8,609 | Common | SOLE |
| 031162100 | AMGN | AMGEN INC | $4.9M | 1.10% | 13,992 | Common | SOLE |
| 25434V849 | DFNM | DIMENSIONAL ETF TRUST | $4.7M | 1.05% | 98,018 | Common | NONE |
| 25434V666 | DFLV | DIMENSIONAL ETF TRUST | $4.6M | 1.04% | 130,052 | Common | NONE |
| 808524862 | SCHO | SCHWAB STRATEGIC TR | $4.4M | 0.98% | 180,905 | Common | SOLE |
| 922907746 | VTEB | VANGUARD MUN BD FDS | $4.1M | 0.91% | 81,673 | Common | SOLE |
| 922042858 | VWO | VANGUARD INTL EQUITY INDEX F | $3.8M | 0.85% | 70,126 | Common | SOLE |
| 78463X889 | SPDW | SPDR INDEX SHS FDS | $3.4M | 0.75% | 73,823 | Common | SOLE |
| 78464A508 | SPYV | SPDR SERIES TRUST | $3.3M | 0.74% | 58,647 | Common | SOLE |
| 92206C870 | VCIT | VANGUARD SCOTTSDALE FDS | $3.2M | 0.71% | 38,520 | Common | SOLE |
| 92206C102 | VGSH | VANGUARD SCOTTSDALE FDS | $2.9M | 0.66% | 50,210 | Common | NONE |
| 464287457 | SHY | ISHARES TR | $2.8M | 0.62% | 33,825 | Common | SOLE |
| 25434V203 | DFAI | DIMENSIONAL ETF TRUST | $2.8M | 0.62% | 71,471 | Common | SOLE |
| 084670702 | BRK/B | BERKSHIRE HATHAWAY INC DEL | $2.7M | 0.61% | 5,677 | Common | NONE |
| 808524102 | SCHB | SCHWAB STRATEGIC TR | $2.6M | 0.58% | 102,885 | Common | SOLE |
| 921937827 | BSV | VANGUARD BD INDEX FDS | $2.5M | 0.56% | 32,288 | Common | SOLE |
| 78464A854 | SPYM | SPDR SERIES TRUST | $2.5M | 0.55% | 32,300 | Common | SOLE |
| 464287226 | AGG | ISHARES TR | $2.3M | 0.50% | 22,794 | Common | SOLE |
| 808524607 | SCHA | SCHWAB STRATEGIC TR | $2.2M | 0.50% | 76,343 | Common | SOLE |
| 922908769 | VTI | VANGUARD INDEX FDS | $2.2M | 0.49% | 6,833 | Common | SOLE |
| 808524201 | SCHX | SCHWAB STRATEGIC TR | $2.2M | 0.49% | 85,125 | Common | SOLE |
| 25434V583 | DFGP | DIMENSIONAL ETF TRUST | $1.9M | 0.43% | 36,094 | Common | SOLE |
| 25434V807 | DFIV | DIMENSIONAL ETF TRUST | $1.9M | 0.42% | 35,620 | Common | SOLE |
| 25434V864 | DFSD | DIMENSIONAL ETF TRUST | $1.9M | 0.42% | 38,867 | Common | SOLE |
| 464287309 | IVW | ISHARES TR | $1.9M | 0.41% | 16,412 | Common | SOLE |
| 46137V357 | RSP | INVESCO EXCHANGE TRADED FD T | $1.8M | 0.41% | 9,522 | Common | SOLE |
| 25434V104 | DFAU | DIMENSIONAL ETF TRUST | $1.8M | 0.41% | 40,449 | Common | SOLE |
| 922908637 | VV | VANGUARD INDEX FDS | $1.8M | 0.39% | 5,912 | Common | NONE |
| 464287176 | TIP | ISHARES TR | $1.7M | 0.37% | 14,979 | Common | SOLE |
| 464287879 | IJS | ISHARES TR | $1.5M | 0.33% | 12,416 | Common | SOLE |
| 464287614 | IWF | ISHARES TR | $1.5M | 0.33% | 3,436 | Common | SOLE |
| 25434V302 | DFAE | DIMENSIONAL ETF TRUST | $1.4M | 0.32% | 42,805 | Common | SOLE |
| 25434V831 | DUHP | DIMENSIONAL ETF TRUST | $1.3M | 0.30% | 36,631 | Common | SOLE |
| 921937835 | BND | VANGUARD BD INDEX FDS | $1.3M | 0.29% | 17,843 | Common | SOLE |
| 532457108 | LLY | ELI LILLY & CO | $1.3M | 0.29% | 1,409 | Common | SOLE |
| 808524805 | SCHF | SCHWAB STRATEGIC TR | $1.3M | 0.29% | 51,951 | Common | SOLE |
| 78464A300 | SLYV | SPDR SERIES TRUST | $1.3M | 0.29% | 13,581 | Common | SOLE |
| 92206C730 | VONE | VANGUARD SCOTTSDALE FDS | $1.3M | 0.28% | 4,281 | Common | SOLE |
| 91324P102 | UNH | UNITEDHEALTH GROUP INC | $1.0M | 0.23% | 3,802 | Common | SOLE |
| 459200101 | IBM | INTERNATIONAL BUSINESS MACHS | $1.0M | 0.23% | 4,179 | Common | SOLE |
| 808524706 | SCHE | SCHWAB STRATEGIC TR | $971,558 | 0.22% | 29,486 | Common | SOLE |
| 74340W103 | PLD | PROLOGIS INC. | $934,513 | 0.21% | 7,070 | Common | SOLE |
| 78463X509 | SPEM | SPDR INDEX SHS FDS | $919,843 | 0.21% | 19,609 | Common | SOLE |
| 29444U700 | EQIX | EQUINIX INC | $910,643 | 0.20% | 929 | Common | SOLE |
| 464287598 | IWD | ISHARES TR | $870,919 | 0.19% | 4,076 | Common | SOLE |
| 922020730 | VSDB | VANGUARD MALVERN FDS | $826,065 | 0.18% | 10,834 | Common | SOLE |
| 922020805 | VTIP | VANGUARD MALVERN FDS | $770,516 | 0.17% | 15,426 | Common | SOLE |
| 30231G102 | XOM | EXXON MOBIL CORP | $770,087 | 0.17% | 4,539 | Common | SOLE |
| 084670108 | BRK/A | BERKSHIRE HATHAWAY INC DEL | $718,140 | 0.16% | 1 | Common | NONE |
| 65339F101 | NEE | NEXTERA ENERGY INC | $704,588 | 0.16% | 7,586 | Common | SOLE |
| 437076102 | HD | HOME DEPOT INC | $703,825 | 0.16% | 2,140 | Common | SOLE |
| 25434V641 | DFVX | DIMENSIONAL ETF TRUST | $684,275 | 0.15% | 9,210 | Common | NONE |
| 78468R853 | SPSM | SPDR SERIES TRUST | $682,231 | 0.15% | 14,119 | Common | SOLE |
| 46625H100 | JPM | JPMORGAN CHASE & CO | $677,157 | 0.15% | 2,302 | Common | SOLE |
| 464287804 | IJR | ISHARES TR | $675,874 | 0.15% | 5,437 | Common | SOLE |
| 45841N107 | IBKR | INTERACTIVE BROKERS GROUP IN | $670,700 | 0.15% | 10,000 | Common | NONE |
| 464287200 | IVV | ISHARES TR | $669,361 | 0.15% | 1,025 | Common | NONE |
| 464287655 | IWM | ISHARES TR | $614,296 | 0.14% | 2,477 | Common | SOLE |
| 713448108 | PEP | PEPSICO INC | $613,551 | 0.14% | 3,951 | Common | SOLE |
| 464287234 | EEM | ISHARES TR | $612,992 | 0.14% | 10,794 | Common | SOLE |
| 92204A702 | VGT | VANGUARD WORLD FD | $592,365 | 0.13% | 849 | Common | SOLE |
| 25434V823 | DFAR | DIMENSIONAL ETF TRUST | $560,553 | 0.13% | 23,702 | Common | SOLE |
| 03027X100 | AMT | AMERICAN TOWER CORP | $560,540 | 0.13% | 3,248 | Common | SOLE |
| 260557103 | DOW | DOW HLDGS INC | $553,528 | 0.12% | 13,290 | Common | SOLE |
| 253868103 | DLR | DIGITAL RLTY TR INC | $546,037 | 0.12% | 3,030 | Common | SOLE |
| 191216100 | KO | COCA COLA CO | $543,226 | 0.12% | 7,143 | Common | SOLE |
| 125523100 | CI | THE CIGNA GROUP | $542,303 | 0.12% | 2,033 | Common | SOLE |
| 78462F103 | SPY | STATE STR SPDR S&P 500 ETF T | $535,495 | 0.12% | 823 | Common | NONE |
| 654106103 | NKE | NIKE INC | $515,418 | 0.11% | 9,758 | Common | SOLE |
| 369604301 | GE | GE AEROSPACE | $511,638 | 0.11% | 1,803 | Common | SOLE |
| 037833100 | AAPL | APPLE INC | $510,004 | 0.11% | 2,010 | Common | SOLE |
| 742718109 | PG | PROCTER & GAMBLE CO | $508,718 | 0.11% | 3,522 | Common | SOLE |
| 828806109 | SPG | SIMON PPTY GROUP INC NEW | $495,424 | 0.11% | 2,656 | Common | SOLE |
| 808524409 | SCHV | SCHWAB STRATEGIC TR | $477,722 | 0.11% | 15,663 | Common | SOLE |
| 756109104 | O | REALTY INCOME CORP | $460,441 | 0.10% | 7,526 | Common | SOLE |
| 74460D109 | PSA | PUBLIC STORAGE OPER CO | $440,451 | 0.10% | 1,626 | Common | SOLE |
| 921910691 | VCEB | VANGUARD WORLD FD | $422,092 | 0.09% | 6,718 | Common | SOLE |
| G51502105 | JCI | JOHNSON CONTROLS INTERNATION | $409,874 | 0.09% | 3,130 | Common | SOLE |
| 194162103 | CL | COLGATE PALMOLIVE CO | $409,104 | 0.09% | 4,800 | Common | NONE |
| 464287564 | ICF | ISHARES TR | $395,106 | 0.09% | 6,384 | Common | SOLE |
| 464287465 | EFA | ISHARES TR | $359,770 | 0.08% | 3,704 | Common | SOLE |
| 464287408 | IVE | ISHARES TR | $351,776 | 0.08% | 1,666 | Common | SOLE |
| 46284V101 | IRM | IRON MTN INC DEL | $337,471 | 0.08% | 3,304 | Common | SOLE |
| 92203J407 | BNDX | VANGUARD CHARLOTTE FDS | $337,315 | 0.08% | 7,020 | Common | SOLE |
| 023135106 | AMZN | AMAZON COM INC | $331,150 | 0.07% | 1,590 | Common | NONE |
| 416515104 | HIG | HARTFORD INSURANCE GROUP INC | $327,663 | 0.07% | 2,423 | Common | SOLE |
| 594918104 | MSFT | MICROSOFT CORP | $324,269 | 0.07% | 876 | Common | SOLE |
| 25434V872 | DFCF | DIMENSIONAL ETF TRUST | $320,535 | 0.07% | 7,592 | Common | NONE |
| 921908844 | VIG | VANGUARD SPECIALIZED FUNDS | $306,891 | 0.07% | 1,427 | Common | SOLE |
| 925652109 | VICI | VICI PPTYS INC | $303,034 | 0.07% | 11,092 | Common | SOLE |
| 25434V740 | DFEV | DIMENSIONAL ETF TRUST | $299,694 | 0.07% | 8,376 | Common | SOLE |
| 30225T102 | EXR | EXTRA SPACE STORAGE INC | $294,912 | 0.07% | 2,249 | Common | SOLE |
| 22822V101 | CCI | CROWN CASTLE INC | $293,855 | 0.07% | 3,614 | Common | SOLE |
| 438516106 | HON | HONEYWELL INTL INC | $271,236 | 0.06% | 1,200 | Common | NONE |
| 921909768 | VXUS | VANGUARD STAR FDS | $268,729 | 0.06% | 3,485 | Common | SOLE |
| 92206C565 | BNDW | VANGUARD SCOTTSDALE FDS | $253,374 | 0.06% | 3,707 | Common | NONE |
| G5960L103 | MDT | MEDTRONIC PLC | $248,513 | 0.06% | 2,868 | Common | SOLE |
| 81369Y803 | XLK | SELECT SECTOR SPDR TR | $245,600 | 0.05% | 1,848 | Common | SOLE |
| 053484101 | AVB | AVALONBAY CMNTYS INC | $241,922 | 0.05% | 1,481 | Common | SOLE |
| 464288869 | IWC | ISHARES TR | $238,139 | 0.05% | 1,492 | Common | SOLE |
| G87052109 | TEL | TE CONNECTIVITY PLC | $234,939 | 0.05% | 1,124 | Common | SOLE |
| 922042742 | VT | VANGUARD INTL EQUITY INDEX F | $234,774 | 0.05% | 1,697 | Common | SOLE |
| 007903107 | AMD | ADVANCED MICRO DEVICES INC | $231,097 | 0.05% | 1,136 | Common | NONE |
| 92206C573 | VTC | VANGUARD SCOTTSDALE FDS | $231,019 | 0.05% | 3,007 | Common | NONE |
| 29476L107 | EQR | EQUITY RESIDENTIAL | $216,785 | 0.05% | 3,665 | Common | SOLE |
| 92206C409 | VCSH | VANGUARD SCOTTSDALE FDS | $206,102 | 0.05% | 2,600 | Common | SOLE |
Source: SEC EDGAR · raw 13F holdings as filed. The Class column shows the option type when reported (Put/Call) or Common when the issuer's equity is held directly. 13F discloses long positions only.