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American Investment Services, Inc. — 13F Holdings & Portfolio

CIK 1369913 · latest 13F-HR filed 2026-08-12

Backtest portfolio

American Investment Services, Inc. manages $473.3M in 13F-reported U.S. long-equity assets across 133 reported positions as of its 2026-06-30 13F-HR filing. Its largest disclosed positions are GLDM (8.25%), VUG (8.22%), DFUV (5.52%). Quarter over quarter (versus its 2026-03-31 filing) the fund opened 4 new positions, exited 3, added to 80, and trimmed 20.

AUM is the long-equity portion reported on Form 13F-HR. Excludes short positions, cash, foreign holdings, and non-13F assets. For informational purposes only — not investment advice.

Filer Information
Address
250 DIVISION STREET
POST OFFICE BOX 1000
GREAT BARRINGTON, MA 01230-1000
Phone
(413) 591-4445
Filing Manager
American Investment Services, Inc.
GREAT BARRINGTON, MA
Signatory
Sandra Potter-Stevenson
Chief Compliance Officer
Loading holdings…
AUM

$473.3M

Long-equity book

Holdings

133

Distinct positions

Period

2026-06-30

Filed 2026-08-12

Q/Q Activity

+4 / −3 / ↑80 / ↓20

vs 2026-03-31

Firm Profile & Key People
Name Title / Status Ownership Type

Top Adds (vs prior quarter)

  • VANGUARD INDEX FDS$4.3M +12.3%
  • DIMENSIONAL ETF TRUST$2.8M +12.2%
  • DIMENSIONAL ETF TRUST$2.6M +21.2%
  • DIMENSIONAL ETF TRUST$2.4M +18.6%
  • DIMENSIONAL ETF TRUST$1.7M +17.5%
Show all 80 →

Top Trims

  • WORLD GOLD TR-$4.5M -10.3%
  • CHEVRON CORPORATION-$2.4M -20.5%
  • JOHNSON & JOHNSON-$1.8M -33.9%
  • ISHARES TR-$1.3M -23.0%
  • ISHARES GOLD TR-$1.3M -16.0%
Show all 20 →

New Positions

  • FLEX LTD$286.2K
  • GE VERNOVA INC$269.0K
  • SBA COMMUNICATIONS CORP$202.2K
  • ESSEX PPTY TR INC$201.8K
Show all 4 →

Exited Positions

  • DOW HLDGS INC$553.5K
  • HONEYWELL INTL INC$271.2K
  • ISHARES TR$238.1K
Show all 3 →
All Holdings

Rows tagged Call or Put are options positions, not stock. Per SEC Form 13F-HR, Value shows the notional value of the underlying (shares covered × underlying price), not the option premium. Shares is the number of underlying shares covered (divide by 100 for contract count).

# Issuer Symbol CUSIP Value Weight Shares Type
1 WORLD GOLD TR GLDM 98149E303 $39.0M 8.25% 491,625 SH
2 VANGUARD INDEX FDS VUG 922908736 $38.9M 8.22% 451,625 SH
3 DIMENSIONAL ETF TRUST DFUV 25434V724 $26.1M 5.52% 474,682 SH
4 VANGUARD WHITEHALL FDS VYMI 921946794 $20.3M 4.29% 206,897 SH
5 DIMENSIONAL ETF TRUST DFAS 25434V500 $15.1M 3.20% 183,701 SH
6 DIMENSIONAL ETF TRUST DFIC 25434V799 $15.0M 3.18% 403,790 SH
7 DIMENSIONAL ETF TRUST DFUS 25434V401 $14.9M 3.15% 181,888 SH
8 VANGUARD INDEX FDS VTV 922908744 $13.1M 2.76% 60,000 SH
9 DIMENSIONAL ETF TRUST DFGR 25434V658 $11.2M 2.37% 386,559 SH
10 DIMENSIONAL ETF TRUST DFEM 25434V732 $11.0M 2.31% 269,464 SH
11 VANGUARD WORLD FD VPU 92204A876 $10.8M 2.28% 55,147 SH
12 DIMENSIONAL ETF TRUST DFAT 25434V609 $10.0M 2.10% 142,440 SH
13 VANGUARD MUN BD FDS VSDM 922907696 $9.9M 2.08% 128,709 SH
14 CHEVRON CORPORATION CVX 166764100 $9.4M 1.99% 56,711 SH
15 MERCK & CO INC MRK 58933Y105 $9.3M 1.96% 72,201 SH
16 DIMENSIONAL ETF TRUST DFAW 25434V617 $9.1M 1.92% 110,004 SH
17 DIMENSIONAL ETF TRUST DFAX 25434V880 $9.1M 1.92% 247,021 SH
18 VANGUARD TAX-MANAGED FDS VEA 921943858 $8.8M 1.86% 123,861 SH
19 VERIZON COMMUNICATIONS INC VZ 92343V104 $8.7M 1.84% 205,596 SH
20 VANGUARD INDEX FDS VBR 922908611 $7.4M 1.56% 30,374 SH
21 VANGUARD INDEX FDS VNQ 922908553 $6.9M 1.46% 71,580 SH
22 ISHARES GOLD TR IAU 464285204 $6.8M 1.43% 89,415 SH
23 VANGUARD INDEX FDS VB 922908751 $6.7M 1.42% 22,163 SH
24 DIMENSIONAL ETF TRUST DFSV 25434V815 $6.0M 1.28% 155,852 SH
25 VANGUARD INDEX FDS VOO 922908363 $6.0M 1.26% 8,694 SH
26 DIMENSIONAL ETF TRUST DFLV 25434V666 $5.4M 1.14% 136,747 SH
27 DIMENSIONAL ETF TRUST DFNM 25434V849 $4.8M 1.01% 98,541 SH
28 SCHWAB STRATEGIC TR SCHO 808524862 $4.5M 0.94% 184,987 SH
29 AMGEN INC AMGN 031162100 $4.4M 0.94% 12,224 SH
30 ISHARES TR SHV 464288679 $4.3M 0.92% 39,336 SH
31 VANGUARD MUN BD FDS VTEB 922907746 $4.2M 0.88% 82,194 SH
32 VANGUARD INTL EQUITY INDEX F VWO 922042858 $3.9M 0.83% 65,771 SH
33 SPDR INDEX SHS FDS SPDW 78463X889 $3.6M 0.77% 72,183 SH
34 JOHNSON & JOHNSON JNJ 478160104 $3.6M 0.76% 14,085 SH
35 SPDR SERIES TRUST SPYV 78464A508 $3.5M 0.75% 58,237 SH
36 VANGUARD SCOTTSDALE FDS VCIT 92206C870 $3.2M 0.68% 38,787 SH
37 SCHWAB STRATEGIC TR SCHB 808524102 $3.0M 0.63% 102,887 SH
38 BERKSHIRE HATHAWAY INC DEL BRK.B 084670702 $2.8M 0.60% 5,677 SH
39 SPDR SERIES TRUST SPYM 78464A854 $2.8M 0.59% 32,000 SH
40 SCHWAB STRATEGIC TR SCHA 808524607 $2.7M 0.58% 75,428 SH
41 ISHARES TR SHY 464287457 $2.7M 0.57% 33,084 SH
42 VANGUARD SCOTTSDALE FDS VGSH 92206C102 $2.7M 0.57% 46,009 SH
43 VANGUARD BD INDEX FDS BSV 921937827 $2.6M 0.55% 33,262 SH
44 DIMENSIONAL ETF TRUST DFAI 25434V203 $2.5M 0.54% 61,801 SH
45 SCHWAB STRATEGIC TR SCHX 808524201 $2.5M 0.53% 85,125 SH
46 VANGUARD INDEX FDS VTI 922908769 $2.4M 0.52% 6,612 SH
47 DIMENSIONAL ETF TRUST DFSD 25434V864 $2.3M 0.48% 47,901 SH
48 ISHARES TR IVW 464287309 $2.2M 0.47% 16,072 SH
49 DIMENSIONAL ETF TRUST DFAU 25434V104 $2.1M 0.44% 40,412 SH
50 VANGUARD INDEX FDS VV 922908637 $2.0M 0.43% 5,955 SH
Filing History
Period Filed AUM Holdings Accession
2026-06-30 2026-08-12 $473.3M 133 0001369913-26-000003
2026-03-31 2026-05-13 $448.3M 132 0001369913-26-000002
2025-12-31 2026-02-13 $430.9M 129 0001369913-26-000001
2025-09-30 2025-11-13 $416.2M 134 0001369913-25-000003