MGK vs VOOG: how much do they overlap?
Vanguard Mega Cap Growth ETF (MGK) · Vanguard S&P 500 Growth ETF (VOOG)
overlap by weight · 48 shared holdings
MGK: 59 holdings (as of 2026-03-31) · VOOG: 140 holdings (as of 2026-02-28)
Note: the two funds' latest official filings have different dates, which can understate overlap slightly for funds tracking similar indexes.
High overlap
What this means
MGK and VOOG are largely the same portfolio. Holding both adds little diversification — most dollars end up in the same underlying stocks.
Overlap by weight sums the smaller of the two funds' weights for every stock they both hold — it answers "how much of my money is in the same stocks either way?" See methodology.
Top shared holdings
| Company | Ticker | in MGK | in VOOG |
|---|---|---|---|
| NVIDIA Corp | NVDA | 13.75% | 14.16% |
| Microsoft Corp | MSFT | 9.01% | 9.6% |
| Apple Inc | AAPL | 12.6% | 6.42% |
| Alphabet Inc | GOOGL | 5.51% | 5.97% |
| Broadcom Inc | AVGO | 4.4% | 4.96% |
| Alphabet Inc | GOOG | 4.37% | 4.76% |
| Meta Platforms Inc | META | 4.17% | 4.64% |
| Amazon.com Inc | AMZN | 4.59% | 3.56% |
| Eli Lilly & Co | LLY | 3.17% | 2.75% |
| Tesla Inc | TSLA | 4.18% | 2.31% |
FAQ
How much do MGK and VOOG overlap?
MGK and VOOG have a 72.6% overlap by weight, sharing 48 holdings (out of 59 in MGK and 140 in VOOG), based on official issuer holdings as of 2026-03-31.
What does 72.6% overlap mean?
MGK and VOOG are largely the same portfolio. Holding both adds little diversification — most dollars end up in the same underlying stocks.
Which stocks do MGK and VOOG both hold?
The largest shared positions are NVIDIA Corp, Microsoft Corp, Apple Inc, Alphabet Inc, Broadcom Inc. The full list of top shared holdings with weights in each fund is shown on this page.