Data as of Sep 13, 2026. Both funds on the fields they both publish, from the same sources.
MGK vs MTUM: how they differ
MGK and MTUM hold 0% of their weight in the same names, and MTUM returned more over the year.
Vanguard Mega Cap Growth Index Fund and iShares MSCI USA Momentum Factor ETF.
What they hold in common
By the books each fund has filed, MGK and MTUM hold 0% of their money in the same securities at the same weight.
| Only in MGK | Only in MTUM |
|---|---|
| NVIDIA Corp 13.29% | ADVANCED MICRO DEVICES 5.39% |
| Apple Inc 12.19% | MICRON TECHNOLOGY 5.20% |
| Microsoft Corp 7.52% | INTEL CORPORATION 4.14% |
| Alphabet Inc 5.93% | CISCO SYSTEMS INC 3.48% |
| Alphabet Inc 4.67% | JOHNSON & JOHNSON 3.38% |
| Amazon.com Inc 4.47% | SANDISK 3.10% |
| Broadcom Inc 4.28% | APPLIED MATERIAL INC 2.87% |
| Meta Platforms Inc 4.08% | ALPHABET CLASS A 2.69% |
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 and Sep 10, 2026.
| MGK Vanguard Mega Cap Growth Index Fund | MTUM iShares MSCI USA Momentum Factor ETF | |
|---|---|---|
| Where it sits | Core index fund | Core index fund |
| Issuer | Vanguard | iShares |
| What it is | Mega Cap Growth | MSCI USA Momentum Factor |
| Total return, 1 year | +14.9% | +21.8% |
| S&P 500 over the same days | +17.5% | +17.5% |
| Gap to the S&P 500 | −2.6 pts | +4.3 pts |
| Expense ratio | 0.07% | 0.15% |
| Already in the S&P 500 | 99.2% | 98.2% |
| Holdings | 56 | 128 |
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%.
MTUM in plain words
MTUM is an index equity fund tracking the MSCI USA Momentum Factor. Over the year to Sep 11, 2026 it returned +21.8% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% for the Nasdaq-100. The prospectus expense ratio is 0.15% a year. By its holdings filed for Sep 10, 2026, 98% of the fund by weight is stocks the S&P 500 also holds, across 128 positions, with the top ten at 35.3%. It sat 11.1% below its high of Jun 22, 2026 on Sep 11, 2026.
Questions people ask
- Which returned more over the last year, MGK or MTUM?
- In the year to Sep 13, 2026, with distributions reinvested, MGK returned +14.9% and MTUM returned +21.8%, so MTUM returned more. One year is one year; the longer windows are in the table.
- Which is cheaper, MGK or MTUM?
- MGK charges 0.07% a year and MTUM charges 0.15%, so MGK is cheaper. Fees come from each fund's prospectus.
- How much do MGK and MTUM overlap with the S&P 500?
- By their latest filed holdings, 99% of MGK and 98% of MTUM by weight is stocks the S&P 500 already holds. Between the two funds, 0% 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 MTUM, data as of Sep 13, 2026. https://etfiq.com/compare/any/mgk-vs-mtum Free to use with attribution; the underlying files are at Open data.
A comparison is not a recommendation. Standards and sources