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ETF comparison

MGC vs OEF

Both US Large Cap.

Vanguard Morningstar Mega Cap ETF · iShares S&P 100 ETF

Holdings overlap

Weighted by ISIN/CUSIP
84.1 %

99 positions appear in both funds. Buying equal dollars of MGC and OEF would leave roughly 84.1% of each dollar exposed to the same underlying securities.

MGC unmatched 15.7% Shared 84.1% OEF unmatched 15.8%

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 MGC only
73 positions
Shared
99 positions
In OEF only
3 positions

Side by side

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%
OEF

iShares S&P 100 ETF

iShares · US Large Cap

81 composite / 100
Expense ratio
0.20%
Net assets
$20.04B
TTM yield
0.88%
Top-10 conc.
50.7%

Sub-score comparison

95
Cost
80
89
Tax efficiency
89
100
Liquidity
100
49
Concentration
42
—
Tracking quality
—
MGC sub-score OEF

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

Cost difference

MGC is 15 bps cheaper than OEF. On a $100,000 position that's about $150/yr more in fees for OEF.

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 MGC vs OEF.

Top shared holdings

99 shared in total
# Holding In MGC In OEF Overlap
1 NVIDIA Corp 9.34% 10.47% 9.34%
2 Apple Inc 8.56% 9.18% 8.56%
3 Microsoft Corp 6.93% 5.99% 5.99%
4 Amazon.com Inc 4.63% 5.04% 4.63%
5 Alphabet Inc 3.67% 4.53% 3.67%
6 Broadcom Inc 3.23% 3.86% 3.23%
7 Alphabet Inc 2.88% 3.61% 2.88%
8 Meta Platforms Inc 2.31% 2.67% 2.31%
9 Micron Technology Inc 1.99% 2.81% 1.99%
10 Tesla Inc 1.91% 2.56% 1.91%
11 Eli Lilly & Co 1.80% 2.05% 1.80%
12 JPMorgan Chase & Co 1.76% 1.89% 1.76%

Only in MGC

73 total
  • ExxonMobil Holdings Corp 1.23%
  • Palo Alto Networks Inc 0.57%
  • Sandisk Corp 0.43%
  • KLA Corp 0.42%
  • Crowdstrike Holdings Inc 0.41%
  • Arista Networks Inc 0.39%
  • Amphenol Corp 0.36%
  • Marvell Technology Inc 0.35%
  • Analog Devices Inc 0.32%
  • Welltower Inc 0.31%

Only in OEF

3 total
  • EXXONMOBIL HOLDINGS CORP 1.22%
  • SIMON PROPERTY GROUP INC 0.16%
  • GENERAL MOTORS COMPANY 0.15%

Percentages are holdings overlap with the named fund.

Open MGC or OEF 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.