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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
86.5 %

99 positions appear in both funds. Buying equal dollars of MGC and OEF would leave roughly 86.5% of each dollar exposed to the same underlying securities.

MGC unmatched 13.3% Shared 86.5% OEF unmatched 13.4%

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
74 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
$11.05B
whole fund, 2 share classes
TTM yield
0.69%
Top-10 conc.
47.0%
OEF

iShares S&P 100 ETF

iShares · US Large Cap

81 composite / 100
Expense ratio
0.20%
Net assets
$20.43B
TTM yield
0.86%
Top-10 conc.
50.7%

Sub-score comparison

95
Cost
80
89
Tax efficiency
89
100
Liquidity
100
47
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 9.10% 10.47% 9.10%
2 Apple Inc 8.55% 9.18% 8.55%
3 Microsoft Corp 6.24% 5.99% 5.99%
4 Amazon.com Inc 4.88% 5.04% 4.88%
5 Alphabet Inc 4.13% 4.53% 4.13%
6 Broadcom Inc 3.95% 3.86% 3.86%
7 Alphabet Inc 3.25% 3.61% 3.25%
8 Meta Platforms Inc 2.58% 2.67% 2.58%
9 Tesla Inc 2.29% 2.56% 2.29%
10 Micron Technology Inc 2.04% 2.81% 2.04%
11 Eli Lilly & Co 1.75% 2.05% 1.75%
12 Advanced Micro Devices Inc 1.57% 2.05% 1.57%

Only in MGC

74 total
  • KLA Corp 0.47%
  • Sandisk Corp/DE 0.46%
  • Palo Alto Networks Inc 0.43%
  • Analog Devices Inc 0.38%
  • Amphenol Corp 0.34%
  • Crowdstrike Holdings Inc 0.33%
  • TJX Cos Inc/The 0.32%
  • Arista Networks Inc 0.32%
  • Eaton Corp PLC 0.29%
  • Honeywell International Inc 0.28%

Only in OEF

3 total
  • HONEYWELL AEROSPACE INC 0.15%
  • GENERAL MOTORS COMPANY 0.15%
  • HONEYWELL INTERNATIONAL INC 0.00%

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.