ETF comparison

IVV vs MGC

Both US Large Cap.

iShares Core S&P 500 ETF · Vanguard Mega Cap Index Fund

Holdings overlap

Weighted by ISIN/CUSIP
81.8 %

171 positions appear in both funds. Buying equal dollars of IVV and MGC would leave roughly 81.8% of each dollar exposed to the same underlying securities.

IVV only 18.1% Shared 81.8% MGC only 17.9%
In IVV only
334 positions
Shared
171 positions
In MGC only
4 positions

Side by side

IVV

iShares Core S&P 500 ETF

iShares · US Large Cap

91 composite / 100
Expense ratio
0.030%
Net assets
$888.13B
TTM yield
1.08%
Top-10 conc.
36.4%
MGC

Vanguard Mega Cap Index Fund

Vanguard · US Large Cap

88 composite / 100
Expense ratio
0.050%
Net assets
$10.57B
TTM yield
0.91%
Top-10 conc.
44.1%

Sub-score comparison

97
Cost
95
88
Tax efficiency
89
100
Liquidity
100
62
Concentration
51
Tracking quality
IVV sub-score MGC

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

Cost difference

IVV is 2 bps cheaper than MGC. On a $100,000 position that's about $20/yr more in fees for MGC.

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 IVV vs MGC.

Top shared holdings

171 shared in total
# Holding In IVV In MGC Overlap
1 NVIDIA Corp. 7.56% 8.54% 7.56%
2 Apple, Inc. 6.65% 8.15% 6.65%
3 Microsoft Corp. 4.91% 6.10% 4.91%
4 Amazon.com, Inc. 3.63% 4.22% 3.63%
5 Alphabet, Inc. 2.99% 3.79% 2.99%
6 Broadcom, Inc. 2.62% 3.15% 2.62%
7 Alphabet, Inc. 2.39% 2.99% 2.39%
8 Meta Platforms, Inc. 2.23% 2.95% 2.23%
9 Tesla, Inc. 1.87% 2.38% 1.87%
10 Berkshire Hathaway, Inc. 1.57% 1.83% 1.57%
11 JPMorgan Chase & Co. 1.42% 1.60% 1.42%
12 Eli Lilly & Co. 1.30% 1.87% 1.30%

Only in IVV

334 total
  • Newmont Corp. 0.21%
  • Corning, Inc. 0.19%
  • Vertiv Holdings Co. 0.17%
  • Sandisk Corp. 0.17%
  • Howmet Aerospace, Inc. 0.16%
  • Western Digital Corp. 0.16%
  • Constellation Energy Corp. 0.16%
  • BlackRock Funds III 0.16%
  • Seagate Technology Holdings plc 0.15%
  • Quanta Services, Inc. 0.15%

Only in MGC

4 total
  • Berkshire Hathaway Inc 0.12%
  • Marvell Technology Inc 0.07%
  • Snowflake Inc 0.06%
  • Strategy Inc 0.04%

Open IVV 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.