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Cardiff Park Advisors, LLC

CIK:0001910000
Investment Adviser
$3B AUM
353 holdings
San Diego, CA, United States
Founded:2003
4 employees
Latest filing:Jun 30, 2025

Cardiff Park Advisors, LLC is an independent, fee-only investment advisory firm headquartered in San Diego, California. Founded in 2003 and SEC-registered since 2006, the firm works with individuals, families, trusts, endowments, retirement plan sponsors, and business entities primarily in the United States. The firm is recognized for its commitment to transparency, evidence-based investing, and the fiduciary standard. As of September 2025, Cardiff Park supervises approximately $3.0 billion in client assets and maintains a focus on client service over asset accumulation, operating with a small team (fewer than 10 employees), serving high-net-worth clients typically with $3 million or more to invest.

Investment Strategy

Cardiff Park Advisors employs a globally diversified, tax-aware investment strategy centered on index-tracking funds, ETFs, and select strategies informed by decades of academic research. The firm follows Modern Portfolio Theory and the Fiduciary Standard of Care, focusing on simple, transparent portfolio construction rather than forecasting or market timing. They offer customized asset allocation and portfolio design, often recommending Dimensional Fund Advisors (DFA) strategies alongside core index ETFs. For clients with large fixed income needs, they construct individual bond ladders using Treasuries, CDs, and high-quality corporates/municipals. Clients are served on a fixed annual retainer model, not a percentage of assets, and receive comprehensive wealth management tailored to complex, multi-generational needs.

Latest 13F Filing Activity

Cardiff Park Advisors, LLC filed their most recent 13F report on Jun 30, 2025 disclosing 348 equity positions and 4 options positions with a total 13F market value of $1B. The fund increased holdings in Meta Platforms Inc., Vanguard Index FDS, Dimensional Etf Trust among other positions. Cardiff Park Advisors, LLC reduced exposure to Dimensional Etf Trust, Berkshire Hathaway Inc. Del, American Centy Etf TR among others.

Top Buys
M
METAMETA PLATFORMS INC
+$19.0M
V
VTIVANGUARD INDEX FDS
+$18.3M
D
DFACDIMENSIONAL ETF TRUST
+$12.0M
O
OKLOOKLO INC
+$10.5M
D
DFAXDIMENSIONAL ETF TRUST
+$4.6M
Top Sells
D
DFATDIMENSIONAL ETF TRUST
-$1.3M
B
BRK-BBERKSHIRE HATHAWAY INC DEL
-$996.2K
A
AVEMAMERICAN CENTY ETF TR
-$859.3K
C
CVXCHEVRON CORP NEW
-$835.9K
D
DFASDIMENSIONAL ETF TRUST
-$756.9K

Top Holdings

V
VTIVANGUARD INDEX FDS
+13.4%$155.2M
D
DFACDIMENSIONAL ETF TRUST
+13.1%$152.3M
M
METAMETA PLATFORMS INC
+11.3%$130.7M
D
DFAXDIMENSIONAL ETF TRUST
+3.4%$39.0M
S
SPYSPDR S&P 500 ETF TR
+2.7%$31.6M

Equity Positions (348)

TickerSecurityWeightMarket ValueSharesAvg CostPriceChange (QoQ)
VANGUARD INDEX FDS13.37%$155.2M510,573$235.26$303.93+$18.3M
DIMENSIONAL ETF TRUST13.12%$152.3M4,250,015$28.64$35.84+$12.0M
META PLATFORMS INC11.26%$130.7M177,118$358.25$738.09+$19.0M
DIMENSIONAL ETF TRUST3.36%$39.0M1,327,506$25.80$29.37+$4.6M
SPDR S&P 500 ETF TR2.72%$31.6M51,138$473.29$617.85+$1.3M

Options Positions (4)

TickerSecurityActionTypeNotional ValueContractsUnderlying PricePremium PaidChange (Contracts)Change (Value)
SALESFORCE INC
Put
$1.7M61$272.69$290.120+$26.4K
META PLATFORMS INCSold
Put
$1.5M20$738.09$355.47-20-$829.3K
ALPHABET INC
Put
$563.9K32$176.23$165.850+$69.1K
ALPHABET INC
Put
$372.5K21$177.39$167.190+$44.4K

Industry Allocation

SERVICES-COMPUTER PROGRAMMING, DATA PROCESSING, ETC.
+12.9%
ELECTRONIC COMPUTERS
+2.3%
ELECTRIC SERVICES
+1.9%
SERVICES-PREPACKAGED SOFTWARE
+1.8%
SEMICONDUCTORS & RELATED DEVICES
+1.6%