Data as of Sep 12, 2026. Both funds on the fields they both publish, from the same sources.
MGK vs VXF: how they differ
MGK and VXF hold 1% of their weight in the same names, and MGK returned more over the year.
Vanguard Mega Cap Growth Index Fund and Vanguard Extended Market Index Fund.
What they hold in common
By the books each fund has filed, MGK and VXF hold 1% of their money in the same securities at the same weight.
| Holding | MGK | VXF |
|---|---|---|
| Space Exploration Technologies Corp | 0.48% | 1.19% |
| Snowflake Inc | 0.34% | 1.03% |
| Marvell Technology Inc | 1.03% | 0.00% |
| Only in MGK | Only in VXF |
|---|---|
| NVIDIA Corp 13.29% | Bloom Energy Corp 0.93% |
| Apple Inc 12.19% | Cloudflare Inc 0.92% |
| Microsoft Corp 7.52% | Astera Labs Inc 0.76% |
| Alphabet Inc 5.93% | Rocket Lab Corp 0.61% |
| Alphabet Inc 4.67% | Cheniere Energy Inc 0.59% |
| Amazon.com Inc 4.47% | Ferguson Enterprises Inc 0.54% |
| Broadcom Inc 4.28% | Credo Technology Group Holding Ltd 0.52% |
| Meta Platforms Inc 4.08% | Alnylam Pharmaceuticals Inc 0.47% |
Weight overlap is an ETFIQ calculation: for every security both funds hold, the smaller of the two weights, summed. Above 50%, holding both is close to holding one of them twice. Holdings dated Jun 30, 2026.
| MGK Vanguard Mega Cap Growth Index Fund | VXF Vanguard Extended Market Index Fund | |
|---|---|---|
| Where it sits | Core index fund | Core index fund |
| Issuer | Vanguard | Vanguard |
| What it is | Mega Cap Growth | Extended Market |
| Total return, 1 year | +14.9% | +14.1% |
| S&P 500 over the same days | +17.5% | +17.5% |
| Gap to the S&P 500 | −2.6 pts | −3.4 pts |
| Expense ratio | 0.07% | 0.05% |
| Already in the S&P 500 | 99.2% | 0.0% |
| Holdings | 56 | 3365 |
MGK in plain words
MGK is an index equity fund tracking the Mega Cap Growth. Over the year to Sep 11, 2026 it returned +14.9% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% for the Nasdaq-100. The prospectus expense ratio is 0.07% a year. By its holdings filed for Jun 30, 2026, 99% of the fund by weight is stocks the S&P 500 also holds, across 56 positions, with the top ten at 63.8%.
VXF in plain words
VXF is an index equity fund tracking the Extended Market. Over the year to Sep 11, 2026 it returned +14.1% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% for the Nasdaq-100. The prospectus expense ratio is 0.05% a year. By its holdings filed for Jun 30, 2026, 0% of the fund by weight is stocks the S&P 500 also holds, across 3365 positions, with the top ten at 7.6%. It sat 5.1% below its high of Aug 14, 2026 on Sep 11, 2026.
Questions people ask
- Which returned more over the last year, MGK or VXF?
- In the year to Sep 12, 2026, with distributions reinvested, MGK returned +14.9% and VXF returned +14.1%, so MGK returned more. One year is one year; the longer windows are in the table.
- Which is cheaper, MGK or VXF?
- MGK charges 0.07% a year and VXF charges 0.05%, so VXF is cheaper. Fees come from each fund's prospectus.
- How much do MGK and VXF overlap with the S&P 500?
- By their latest filed holdings, 99% of MGK and 0% of VXF by weight is stocks the S&P 500 already holds. Between the two funds, 1% of their books are the same securities at the same weight.
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Where these figures came from
ETFIQ links to the documents behind every figure. It is not affiliated with any issuer, and a link is not an endorsement.
Cite this page. ETFIQ, MGK against VXF, data as of Sep 12, 2026. https://etfiq.com/compare/any/MGK-VXF Free to use with attribution; the underlying files are at Open data.
A comparison is not a recommendation. Standards and sources