Data as of Oct 28, 2026.
MGK vs XLB: Differences, Returns & Fees
Over the year to Oct 28, 2026, MGK returned +7.8% to XLB's +18.5%; 0% of their weight is in the same names.
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Net assets: $34.9bn on Sep 30, 2026 for Vanguard Morningstar Mega Cap Growth ETF, and $8.1bn on Oct 27, 2026 for State Street Materials Select Sector SPDR ETF.
Pair scorecard
MGK costs 0.03 points a year less; their one-year returns differ by 10.7 points; MGK is 4.5 times larger.
| Measure | MGK | XLB |
|---|---|---|
| Return | ||
| Total return, 1 year | +7.8% | +18.5% |
| Drawdown | ||
| Below its high | 4.4%, high on Oct 6, 2026 | |
| Benchmark | ||
| What it tracks | Morningstar US Mega Cap Growth Index | Materials Select Sector Index |
| Cost and size | ||
| Expense ratio | 0.05% | 0.08% |
| Net assets, as of Sep 30, 2026 | $34.9bn | $7.8bn |
| Holdings | ||
| Holdings in common | 0% | |
| Top ten holdings, share of the fund | 64.5% | 58.5% |
Holdings in common uses holdings dated Sep 30, 2026 and Oct 27, 2026. Method
What they share
By the books each fund has filed, MGK and XLB hold 0% of their money in the same securities at the same weight. Holdings dated Sep 30, 2026 and Oct 27, 2026.
half
0% in common
Only in one fund ↓
Side by side
MGK and XLB on the fields both publish, as of Oct 28, 2026. Source: ETFIQ.
MGK
MGK tracks an index of Mega Cap Growth. Over the year to Oct 28, 2026 it returned +7.8% with distributions reinvested. The prospectus expense ratio is 0.05% a year. By its holdings published by its issuer as of Sep 30, 2026, 99% of the fund by weight is stocks the S&P 500 also holds, across 54 positions, with the top ten at 64.5%. It sat 4.4% below its high of Oct 6, 2026 on Oct 28, 2026.
XLB
XLB tracks an index of Materials. Over the year to Oct 28, 2026 it returned +18.5% with distributions reinvested. The prospectus expense ratio is 0.08% a year. By its holdings published by its issuer for Oct 27, 2026, 100% of the fund by weight is stocks the S&P 500 also holds, across 25 positions, with the top ten at 58.5%.
Questions people ask
- Which returned more over the last year, MGK or XLB?
- In the year to Oct 28, 2026, with distributions reinvested, MGK returned +7.8% and XLB +18.5%.
- Which is cheaper, MGK or XLB?
- MGK is cheaper, by 0.03 percentage points a year. That is about $3 on $10,000 held for a year. Fees come from each fund's prospectus.
Links are sources, not endorsements. A comparison is not a recommendation.
How this is computed
Overlap adds up the smaller of the two weights for each security both funds hold.
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ETFIQ, MGK against XLB, data as of Oct 28, 2026. https://etfiq.com/compare/any/mgk-vs-xlb
ETFIQ. (Oct 28, 2026). MGK against XLB. Retrieved from https://etfiq.com/compare/any/mgk-vs-xlb
[MGK against XLB (ETFIQ, Oct 28, 2026)](https://etfiq.com/compare/any/mgk-vs-xlb)
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