American Investment Services, Inc.

Registered adviser

CIK

1369913

Location

GREAT BARRINGTON, MA

Portfolio Value

Small $473,329,549

Diversification

Diversified

Filing Date

Global Rank

#3,977 / 8,827 ▼ 181

Top Industry

Drug Manufacturers - General 29.7%

Period ended 4 months ago

Filed Aug 12, 2026 · 3mo

26 quarters · since Mar 2020

Regulatory profile

From Form ADV, the SEC filer profile, 13D/13G type codes and N-CEN, never from the name.

Holder type

Registered adviser

Form ADV roster, Nov 1, 2026

Form ADV adviser

CRD 110043

Roster of Nov 1, 2026

Regulatory AUM

$1,072,980,569

Main clients

Individuals and high net worth (63% of AUM)

Form ADV history

Monthly rosters from Dec 2019; each row is a run with the same figures, newest first.

Rosters	Regulatory AUM	Main clients
Apr 2026 to Nov 2026	$1,072,980,569	Individuals and high net worth (63%)
Apr 2025 to Mar 2026	$1,295,294,172	Individuals and high net worth (73%)
Apr 2024 to Mar 2025	$1,243,691,845	Individuals and high net worth (73%)
May 2023 to Mar 2024	$1,203,447,677	Individuals and high net worth (74%)
Apr 2023	$1,203,447,677	Individuals and high net worth (74%)
Apr 2022 to Mar 2023	$1,283,076,209	Individuals and high net worth (77%)

3 earlier changes not shown.

Stated strategy

Index / passive, Quantitative / systematic, Value, Fixed income / rates, Multi-asset, Wealth management / planning Form ADV Part 2A, Mar 31, 2026 · original

In the firm's words

Index / passive: AIS typically recommends passively managed index or factor-based funds managed by DFA, State Street, BlackRock, and Vanguard.
Quantitative / systematic: AIS’s High-Yield Dow model portfolio is evaluated and rebalanced monthly based on mid-month data.
Value: AIS utilizes the High-Yield Dow investment strategy (i.e., individual U.S. large-cap value securities)
Fixed income / rates: AIS utilizes the High-Yield Dow investment strategy (i.e., individual U.S. large-cap value securities), individual Real Estate Investment Trust (REIT) securities, individual utility securities, and individual fixed income instruments.
Multi-asset: AIS generally builds portfolios of no-load equity and bond mutual funds and ETFs.
Wealth management / planning: This information forms the foundation of an asset allocation plan designed to meet each client’s goals and is typically formalized in a financial plan; a communications tool that is revised as client circumstances and objectives change.

Portfolio style

Measured from the filed 13F common-share book for Jun 30, 2026, never from the firm's own description.

Style

Concentrated

The top 10 positions are 78.2% of the book (60%+)

Turnover

Low turnover

12.6% over the last four quarters (under 30%)

Horizon

Long horizon

Value-weighted holding period 20.6 quarters (12+), a floor since 48.8% of the book was already held when coverage starts

Closest benchmark: every 13F filer's combined book, active share 84.4%; sector active share 73.6% against the combined 13F book's sector weights.

Over time 26 measured quarters

How the bands are measured

Style bands measure the filed 13F common-share book each closed quarter, tested in this order. Unknown: under $10,000,000 of valued equity or 5 stocks. Index-like (100+ stocks): active share of 20% or less against the closest benchmark, which is the S&P 500, S&P MidCap 400, S&P SmallCap 600, Russell 1000, Russell 2000, Nasdaq-100 or Dow Jones Industrial Average (weighted by an index-tracking fund's reported holdings or the index's constituents nearest the quarter end, over the names resolved to companies, and only when those are 90%+ of its weight) or every 13F filer's combined book, or index series holding 80%+ of the registered fund assets it advises (N-CEN) and equal to 50%+ of its book. Systematic-like: 500+ stocks, 100%+ annual turnover and a top 10 weight of 25% or less. Concentrated: a top 10 weight of 60%+ or 12 or fewer effective positions. Diversified active: none of these. Turnover is the smaller of buys and sells over average equity value, summed over four quarters: low under 30%, high 100%+. Horizon is the value-weighted number of quarters each position has been held: short under 4, long 12+.

Clone Performance

Build a hypothetical price-return history from this filer's public 13F holdings.

View clone backtest

Portfolio Concentration

133 tracked positions · as of Jun 30, 2026 · Δ vs Mar 31, 2026

Top Position

32.5%

+2.1 pts

Top 5

65.5%

+0.7 pts

Top 10

78.2%

+0.0 pts

HHI

1,478

Diversified+121

Portfolio Trend

26 quarters · across all stocks

Sector Breakdown

As of Jun 30, 2026

Sector	% Portfolio	Value	Positions
Unclassified	86.5%	$409,458,866	86
Healthcare	4.5%	$21,500,349	7
Energy	2.1%	$10,173,019	2
Communication Services	1.8%	$8,704,934	1
Real Estate	1.4%	$6,824,152	15
Financial Services	1.2%	$5,534,572	5
Consumer Cyclical	0.8%	$3,821,740	3
Technology	0.6%	$2,625,818	6
Consumer Defensive	0.6%	$2,620,075	4
Industrials	0.3%	$1,400,201	3
Utilities	0.1%	$665,823	1

Last Quarter's Activity

Export CSV

Jun 30, 2026 vs Mar 31, 2026

Added To

Positions the filer increased

25 positions

Ticker	Company	Δ Shares	Shares	Value
VUG	VANGUARD GROWTH INDEX FUND	+372,304	451,625	$38,902,977
NKE	NIKE, Inc.	+38,232	47,990	$1,969,989
DFGR	Dimensional Global Real Estate ETF	+27,946	386,559	$11,198,614
GLDM	World Gold Trust	+22,271	491,625	$39,044,857
VZ	Verizon Communications Inc	+15,599	205,596	$8,704,934
DFAX	Dimensional World ex. U.S. Core Equity 2 ETF	+14,654	247,021	$9,100,253
VSDM	VANGUARD SHORT DURATION TAX-EXEMPT BOND ETF	+12,245	128,709	$9,862,970
IWF	iShares Russell 1000 Growth ETF	+10,121	13,557	$1,683,372
DFSD	Dimensional Short-Duration Fixed Income ETF	+9,034	47,901	$2,287,272
DFUS	Dimensional U.S. Equity Market ETF	+8,473	181,888	$14,903,902
DFLV	Dimensional US Large Cap Value ETF	+6,695	136,747	$5,406,976
DFIC	Dimensional International Core Equity 2 ETF	+6,209	403,790	$15,045,215
VGT	VANGUARD INFORMATION TECHNOLOGY INDEX FUND	+5,943	6,792	$811,779
MRK	Merck & Co., Inc.	+5,724	72,201	$9,277,828
DFAS	Dimensional U.S. Small Cap ETF	+4,407	183,701	$15,125,940
SCHO	Schwab Short-Term U.S. Treasury ETF	+4,082	184,987	$4,465,586
PG	PROCTER & GAMBLE Co	+3,768	7,290	$1,069,005
VTIP	VANGUARD SHORT-TERM INFLATION-PROTECTED SECURITIES INDEX FUND	+3,342	18,768	$942,716
HD	Home Depot, Inc.	+2,036	4,176	$1,472,791
VPU	VANGUARD UTILITIES INDEX FUND	+1,888	55,147	$10,793,922
DFGP	Dimensional Global Core Plus Fixed Income ETF	+1,221	37,315	$2,032,174
XOM	ExxonMobil Holdings Corp	+1,112	5,651	$772,604
VSDB	VANGUARD SHORT DURATION BOND ETF	+1,079	11,913	$909,438
BSV	VANGUARD SHORT-TERM BOND INDEX FUND	+974	33,262	$2,591,442
DFSV	Dimensional US Small Cap Value ETF	+896	155,852	$6,045,499
No positions match the current search.

Trimmed

Positions the filer reduced

25 positions

Ticker	Company	Δ Shares	Shares	Value
SCHF	Schwab International Equity ETF	−11,876	40,075	$1,110,077
SHV	iShares 0-1 Year Treasury Bond ETF	−11,739	39,336	$4,340,727
VYMI	VANGUARD INTERNATIONAL HIGH DIVIDEND YIELD INDEX FUND	−10,447	206,897	$20,317,285
DFAI	Dimensional International Core Equity Market ETF	−9,670	61,801	$2,549,291
JNJ	Johnson & Johnson	−8,052	14,085	$3,577,167
—		−5,745	8,374	$482,928
DFUV	Dimensional U.S. Marketwide Value ETF	−5,654	474,682	$26,112,256
VWO	VANGUARD EMERGING MARKETS STOCK INDEX FUND	−4,355	65,771	$3,925,870
VGSH	VANGUARD SHORT-TERM TREASURY INDEX FUND	−4,201	46,009	$2,677,723
DFAW	Dimensional World Equity ETF	−3,538	110,004	$9,107,231
AGG	iShares Core U.S. Aggregate Bond ETF	−3,454	19,340	$1,914,273
VB	Vanguard Index Funds	−3,205	22,163	$6,718,048
TIP	iShares TIPS Bond ETF	−2,524	12,455	$1,362,950
IBM	International Business Machines Corp	−2,242	1,937	$544,703
VEA	Vanguard FTSE Developed Markets ETF	−2,159	123,861	$8,825,096
AMGN	Amgen Inc	−1,768	12,224	$4,426,554
IAU	Ishares Gold Trust	−1,761	89,415	$6,751,726
SPDW	State Street(R) SPDR(R) Portfolio Developed World ex-US ETF	−1,640	72,183	$3,637,301
DFAE	Dimensional Emerging Core Equity Market ETF	−1,471	41,334	$1,662,040
EEM	iShares MSCI Emerging Markets ETF	−1,252	9,542	$652,768
DFVX	Dimensional US Large Cap Vector ETF	−1,030	8,180	$672,665
SCHA	Schwab U.S. Small-Cap ETF	−915	75,428	$2,725,213
BND	VANGUARD TOTAL BOND MARKET INDEX FUND	−852	16,991	$1,247,309
SHY	iShares 1-3 Year Treasury Bond ETF	−741	33,084	$2,716,527
SPEM	State Street(R) SPDR(R) Portfolio Emerging Markets ETF	−589	19,020	$984,855
No positions match the current search.

New Positions

Positions the filer opened this quarter

4 positions

Ticker	Company	Shares	Value
FLEX	Flex Ltd.	1,766	$286,215
GEV	GE Vernova Inc.	229	$269,042
SBAC	Sba Communications Corp	1,146	$202,223
ESS	Essex Property Trust, Inc.	692	$201,780
No positions match the current search.

Sold Out

Positions the filer fully exited

3 positions

Ticker	Company	Shares	Value
DOW	Dow Inc.	13,290	$553,528
HON	Honeywell International Inc	1,200	$271,236
IWC	iShares Micro-Cap ETF	1,492	$238,138
No positions match the current search.

Portfolio Positions

Compact Export CSV View 13F filing

133 tracked positions · $473,329,549 total · filing declares 133 positions · $473,329,330 · as of Jun 30, 2026

All sectors Communication Services Consumer Cyclical Consumer Defensive Energy Financial Services Healthcare Industrials Real Estate Technology Utilities

Showing 1–50 of 133 positions by value · page 1 of 3

Ticker	Company	Type	Shares	Δ Shares	Value (USD)	% Δ Value	Held (qtrs)	Est. cost/share	% of Portfolio
GLDM	World Gold Trust	Added	491,625	+22,271	$39,044,857	−10.3%	26+	before history	8.25%
VUG	VANGUARD GROWTH INDEX FUND	Added	451,625	+372,304	$38,902,977	+12.3%	26+	before history	8.22%
DFUV	Dimensional U.S. Marketwide Value ETF	Reduced	474,682	-5,654	$26,112,256	+12.2%	17	$33.28	5.52%
VYMI	VANGUARD INTERNATIONAL HIGH DIVIDEND YIELD INDEX FUND	Reduced	206,897	-10,447	$20,317,285	−0.8%	23	$57.77	4.29%
DFAS	Dimensional U.S. Small Cap ETF	Added	183,701	+4,407	$15,125,940	+18.6%	21	unpriced	3.20%
DFIC	Dimensional International Core Equity 2 ETF	Added	403,790	+6,209	$15,045,215	+6.5%	17	$25.06	3.18%
DFUS	Dimensional U.S. Equity Market ETF	Added	181,888	+8,473	$14,903,902	+21.2%	21	unpriced	3.15%
VTV	VANGUARD VALUE INDEX FUND	Reduced	60,000	-90	$13,075,800	+10.9%	26+	before history	2.76%
DFGR	Dimensional Global Real Estate ETF	Added	386,559	+27,946	$11,198,614	+17.5%	13	$25.67	2.37%
DFEM	Dimensional Emerging Markets Core Equity 2 ETF	Reduced	269,464	-100	$10,951,016	+17.6%	16	$24.47	2.31%
VPU	VANGUARD UTILITIES INDEX FUND	Added	55,147	+1,888	$10,793,922	+2.3%	26+	before history	2.28%
DFAT	Dimensional U.S. Targeted Value ETF	Reduced	142,440	-214	$9,956,556	+11.8%	21	unpriced	2.10%
VSDM	VANGUARD SHORT DURATION TAX-EXEMPT BOND ETF	Added	128,709	+12,245	$9,862,970	+11.0%	3	$76.82	2.08%
CVX	Chevron Corp Energy	Reduced	56,711	-438	$9,400,415	−20.5%	26+	before history	1.99%
MRK	Merck & Co., Inc. Healthcare	Added	72,201	+5,724	$9,277,828	+16.0%	10	$94.37	1.96%
DFAW	Dimensional World Equity ETF	Reduced	110,004	-3,538	$9,107,231	+8.7%	8	$64.51	1.92%
DFAX	Dimensional World ex. U.S. Core Equity 2 ETF	Added	247,021	+14,654	$9,100,253	+15.3%	20	unpriced	1.92%
VEA	Vanguard FTSE Developed Markets ETF	Reduced	123,861	-2,159	$8,825,096	+9.3%	26+	before history	1.86%
VZ	Verizon Communications Inc Communication Services	Added	205,596	+15,599	$8,704,934	−8.7%	26+	before history	1.84%
VBR	VANGUARD SMALL-CAP VALUE INDEX FUND	Reduced	30,374	-420	$7,380,578	+10.3%	26+	before history	1.56%
VNQ	VANGUARD REAL ESTATE INDEX FUND	Added	71,580	+231	$6,902,459	+9.1%	26+	before history	1.46%
IAU	Ishares Gold Trust	Reduced	89,415	-1,761	$6,751,726	−16.0%	26+	before history	1.43%
VB	Vanguard Index Funds	Reduced	22,163	-3,205	$6,718,048	+1.1%	26+	before history	1.42%
DFSV	Dimensional US Small Cap Value ETF	Added	155,852	+896	$6,045,499	+11.3%	17	$26.96	1.28%
VOO	VANGUARD 500 INDEX FUND	Added	8,694	+85	$5,971,126	+16.1%	26+	before history	1.26%
DFLV	Dimensional US Large Cap Value ETF	Added	136,747	+6,695	$5,406,976	+16.4%	13	$29.09	1.14%
DFNM	Dimensional National Municipal Bond ETF	Added	98,541	+523	$4,762,979	+1.4%	17	$47.81	1.01%
SCHO	Schwab Short-Term U.S. Treasury ETF	Added	184,987	+4,082	$4,465,586	+1.7%	15	unpriced	0.94%
AMGN	Amgen Inc Healthcare	Reduced	12,224	-1,768	$4,426,554	−10.1%	7	$304.48	0.94%
SHV	iShares 0-1 Year Treasury Bond ETF	Reduced	39,336	-11,739	$4,340,727	−23.0%	9	unpriced	0.92%
VTEB	VANGUARD TAX-EXEMPT BOND INDEX FUND	Added	82,194	+521	$4,157,372	+2.0%	25	$52.34	0.88%
VWO	VANGUARD EMERGING MARKETS STOCK INDEX FUND	Reduced	65,771	-4,355	$3,925,870	+3.6%	26+	before history	0.83%
SPDW	State Street(R) SPDR(R) Portfolio Developed World ex-US ETF	Reduced	72,183	-1,640	$3,637,301	+7.9%	26+	before history	0.77%
JNJ	Johnson & Johnson Healthcare	Reduced	14,085	-8,052	$3,577,167	−33.9%	7	$157.75	0.76%
SPYV	State Street(R) SPDR(R) Portfolio S&P 500(R) Value ETF	Reduced	58,237	-410	$3,540,227	+6.7%	26+	before history	0.75%
VCIT	VANGUARD INTERMEDIATE-TERM CORPORATE BOND INDEX FUND	Added	38,787	+267	$3,205,745	+0.6%	10	$81.59	0.68%
SCHB	Schwab U.S. Broad Market ETF	Added	102,887	+2	$2,979,607	+15.4%	3	$26.03	0.63%
BRK-B	Berkshire Hathaway Inc Financial Services	Held	5,677	0	$2,840,714	+4.4%	26+	before history	0.60%
SPYM	State Street(R) SPDR(R) Portfolio S&P 500(R) ETF	Reduced	32,000	-300	$2,812,160	+13.7%	26+	before history	0.59%
SCHA	Schwab U.S. Small-Cap ETF	Reduced	75,428	-915	$2,725,213	+22.8%	26+	before history	0.58%
SHY	iShares 1-3 Year Treasury Bond ETF	Reduced	33,084	-741	$2,716,527	−2.7%	26+	before history	0.57%
VGSH	VANGUARD SHORT-TERM TREASURY INDEX FUND	Reduced	46,009	-4,201	$2,677,723	−8.9%	13	$57.90	0.57%
BSV	VANGUARD SHORT-TERM BOND INDEX FUND	Added	33,262	+974	$2,591,442	+2.4%	26+	before history	0.55%
DFAI	Dimensional International Core Equity Market ETF	Reduced	61,801	-9,670	$2,549,291	−8.4%	23	$28.98	0.54%
SCHX	Schwab U.S. Large-Cap ETF	Held	85,125	0	$2,505,228	+14.8%	26+	before history	0.53%
VTI	VANGUARD TOTAL STOCK MARKET INDEX FUND	Reduced	6,612	-221	$2,446,704	+11.6%	26+	before history	0.52%
DFSD	Dimensional Short-Duration Fixed Income ETF	Added	47,901	+9,034	$2,287,272	+22.9%	13	$47.34	0.48%
IVW	iShares S&P 500 Growth ETF	Reduced	16,072	-340	$2,210,382	+19.1%	26+	before history	0.47%
DFAU	Dimensional US Core Equity Market ETF	Reduced	40,412	-37	$2,088,896	+14.5%	21	$34.66	0.44%
VV	VANGUARD LARGE-CAP INDEX FUND	Added	5,955	+43	$2,047,984	+15.9%	26+	before history	0.43%

Showing the top 50 of 133 positions. Create a free account to see every position, past quarters, search, filters and CSV export.

Covers the securities this platform tracks: U.S.-listed common stock and the put/call positions reported on it. A 13F can also report security types outside that coverage — preferred shares, bonds, warrants, untracked share classes — so the filing's own declared total can exceed the figures above. The source filing is linked at the top of this table.