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ETF comparison

DFAS vs SPY

US Small Cap vs US Large Cap.

DFA U.S. Small Cap Portfolio-ETF Class Shares · State Street SPDR S&P 500 ETF Trust

Holdings overlap

Weighted by ISIN/CUSIP
1.0 %

54 positions appear in both funds. Buying equal dollars of DFAS and SPY would leave roughly 1.0% of each dollar exposed to the same underlying securities.

DFAS unmatched 99.0% Shared 1.0% SPY unmatched 98.9%

Unmatched is the part of a fund's weight the other fund doesn't match: names only it holds, plus any extra weight it puts in names both funds hold.

In DFAS only
1,998 positions
Shared
54 positions
In SPY only
450 positions

Side by side

DFAS

DFA U.S. Small Cap Portfolio-ETF Class Shares

Dimensional · US Small Cap

87 composite / 100
Expense ratio
0.27%
Net assets
$34.43B
TTM yield
1.01%
Top-10 conc.
2.5%
SPY

State Street SPDR S&P 500 ETF Trust

State Street · US Large Cap

88 composite / 100
Expense ratio
0.094%
Net assets
$796.87B
TTM yield
1.01%
Top-10 conc.
37.3%

Sub-score comparison

73
Cost
91
88
Tax efficiency
88
100
Liquidity
100
100
Concentration
61
—
Tracking quality
—
DFAS sub-score SPY

Tracking quality isn't part of the composite — see what we don't score for why.

Cost difference

SPY is 18 bps cheaper than DFAS. On a $100,000 position that's about $176/yr more in fees for DFAS.

Fee figure is the annual expense charged on $100,000. To see how the gap compounds over a multi-decade holding period, open the cost calculator pre-filled with DFAS vs SPY.

Top shared holdings

54 shared in total
# Holding In DFAS In SPY Overlap
1 MODERNA, INC. 0.07% 0.14% 0.07%
2 VIATRIS INC. 0.04% 0.03% 0.03%
3 BEST BUY CO., INC. 0.05% 0.03% 0.03%
4 SKYWORKS SOLUTIONS, INC. 0.16% 0.03% 0.03%
5 REVVITY, INC. 0.18% 0.03% 0.03%
6 STANLEY BLACK & DECKER, INC. 0.14% 0.03% 0.03%
7 Hasbro, Inc. 0.20% 0.03% 0.03%
8 CF INDUSTRIES HOLDINGS, INC. 0.03% 0.03% 0.03%
9 ALLEGION PUBLIC LIMITED COMPANY 0.07% 0.02% 0.02%
10 ZEBRA TECHNOLOGIES CORPORATION 0.09% 0.02% 0.02%
11 APA CORPORATION 0.24% 0.02% 0.02%
12 CHARLES RIVER LABORATORIES INTERNATIONAL, INC. 0.22% 0.02% 0.02%

Only in DFAS

1,998 total
  • HF SINCLAIR CORPORATION 0.29%
  • JAZZ PHARMACEUTICALS PUBLIC LIMITED COMPANY 0.28%
  • IES HOLDINGS, INC. 0.26%
  • ELANCO ANIMAL HEALTH INCORPORATED 0.26%
  • WESCO INTERNATIONAL, INC. 0.25%
  • BORGWARNER INC. 0.25%
  • APPLIED INDUSTRIAL TECHNOLOGIES, INC. 0.24%
  • TTM TECHNOLOGIES, INC. 0.23%
  • Pinnacle Financial Partners, Inc. 0.23%
  • ARROW ELECTRONICS, INC. 0.22%

Only in SPY

450 total
  • APPLE INC 7.69%
  • NVIDIA CORP 7.30%
  • MICROSOFT CORP 6.22%
  • AMAZON.COM INC 3.94%
  • ALPHABET INC CL A 2.56%
  • BROADCOM INC 2.33%
  • META PLATFORMS INC CLASS A 2.09%
  • ALPHABET INC CL C 2.06%
  • ELI LILLY + CO 1.71%
  • TESLA INC 1.64%

Related comparisons

More comparisons with DFAS

More comparisons with SPY

Percentages are holdings overlap with the named fund.

Open DFAS or SPY at a brokerage

Both funds trade commission-free at major US brokerages.

Open at Fidelity

Affiliate links — opening an account through these earns PlainIndex a one-time referral. Scoring is computed before any affiliate consideration; see our methodology and funding disclosure.

Holdings overlap is the sum of min(weight_a, weight_b) over positions matched on ISIN (CUSIP fallback). Methodology: see /methodology/.

Comparing two funds doesn't endorse swapping one for the other. Tax-lot history, account type, and personal goals matter — PlainIndex publishes data and methodology, not investment advice.