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ETF comparison

DIA vs MGC

Both US Large Cap.

State Street SPDR Dow Jones Industrial Average ETF Trust · Vanguard Morningstar Mega Cap ETF

Holdings overlap

Weighted by ISIN/CUSIP
32.2 %

30 positions appear in both funds. Buying equal dollars of DIA and MGC would leave roughly 32.2% of each dollar exposed to the same underlying securities.

DIA unmatched 67.7% Shared 32.2% MGC unmatched 67.6%

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 DIA only
0 positions
Shared
30 positions
In MGC only
142 positions

Side by side

DIA

State Street SPDR Dow Jones Industrial Average ETF Trust

State Street · US Large Cap

82 composite / 100
Expense ratio
0.16%
Net assets
$45.14B
TTM yield
1.38%
Top-10 conc.
54.3%
MGC

Vanguard Morningstar Mega Cap ETF

Vanguard · US Large Cap

88 composite / 100
Expense ratio
0.050%
Net assets
$10.84B
whole fund, 2 share classes
TTM yield
0.94%
Top-10 conc.
45.4%

Sub-score comparison

84
Cost
95
88
Tax efficiency
89
100
Liquidity
100
37
Concentration
49
—
Tracking quality
—
DIA sub-score MGC

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

Cost difference

MGC is 11 bps cheaper than DIA. On a $100,000 position that's about $110/yr more in fees for DIA.

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 DIA vs MGC.

Top shared holdings

30 shared in total
# Holding In DIA In MGC Overlap
1 MICROSOFT CORP 6.19% 6.93% 6.19%
2 APPLE INC 3.89% 8.56% 3.89%
3 ALPHABET INC CL A 3.22% 3.67% 3.22%
4 AMAZON.COM INC 2.96% 4.63% 2.96%
5 NVIDIA CORP 2.23% 9.34% 2.23%
6 JPMORGAN CHASE + CO 3.92% 1.76% 1.76%
7 JOHNSON + JOHNSON 3.08% 1.18% 1.18%
8 VISA INC CLASS A SHARES 4.86% 1.16% 1.16%
9 WALMART INC 1.44% 0.85% 0.85%
10 CISCO SYSTEMS INC 1.15% 0.72% 0.72%
11 CHEVRON CORP 2.42% 0.72% 0.72%
12 CATERPILLAR INC 6.58% 0.68% 0.68%

Only in DIA

0 total

Every DIA position is also held by MGC.

Only in MGC

142 total
  • Broadcom Inc 3.23%
  • Alphabet Inc 2.88%
  • Meta Platforms Inc 2.31%
  • Micron Technology Inc 1.99%
  • Tesla Inc 1.91%
  • Eli Lilly & Co 1.80%
  • Berkshire Hathaway Inc 1.61%
  • Advanced Micro Devices Inc 1.41%
  • ExxonMobil Holdings Corp 1.23%
  • Mastercard Inc 0.86%

Percentages are holdings overlap with the named fund.

Open DIA or MGC at a brokerage

Both funds trade commission-free at major US brokerages.

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.