Data as of Sep 12, 2026. Both funds on the fields they both publish, from the same sources.
MGK vs MTUM: how they differ
MGK and MTUM hold 32% 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 32% of their money in the same securities at the same weight.
| Holding | MGK | MTUM |
|---|---|---|
| NVIDIA Corp | 13.29% | 4.65% |
| Broadcom Inc | 4.28% | 5.41% |
| Advanced Micro Devices Inc | 3.20% | 4.04% |
| Alphabet Inc | 5.93% | 2.95% |
| Alphabet Inc | 4.67% | 2.39% |
| Lam Research Corp | 1.93% | 3.62% |
| KLA Corp | 1.48% | 1.61% |
| GE Vernova Inc | 1.21% | 2.54% |
| Applied Materials Inc | 1.13% | 2.36% |
| Intel Corp | 1.10% | 3.84% |
| Palantir Technologies Inc | 0.97% | 1.52% |
| Corning Inc | 0.90% | 1.22% |
| Only in MGK | Only in MTUM |
|---|---|
| Apple Inc 12.19% | MICRON TECHNOLOGY, INC. 5.57% |
| Microsoft Corp 7.52% | JOHNSON & JOHNSON 3.76% |
| Amazon.com Inc 4.47% | EXXON MOBIL CORPORATION 3.44% |
| Meta Platforms Inc 4.08% | CATERPILLAR INC. 3.21% |
| Tesla Inc 3.93% | JPMORGAN CHASE & CO. 2.87% |
| Eli Lilly & Co 3.41% | WALMART INC. 2.76% |
| Visa Inc 1.82% | GENERAL ELECTRIC COMPANY 1.90% |
| Mastercard Inc 1.47% | THE GOLDMAN SACHS GROUP, INC. 1.69% |
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 Apr 30, 2026 and Jun 30, 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 | 125 |
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 Apr 30, 2026, 98% of the fund by weight is stocks the S&P 500 also holds, across 125 positions, with the top ten at 40.5%. 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 12, 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, 32% 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 12, 2026. https://etfiq.com/compare/any/MGK-MTUM Free to use with attribution; the underlying files are at Open data.
A comparison is not a recommendation. Standards and sources