Data as of Oct 28, 2026.
MGK vs VXF: Differences, Returns & Fees
Over the year to Oct 28, 2026, MGK returned +7.8% to VXF's +10.6%; 1% of their weight is in the same names.
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Net assets on Sep 30, 2026: $34.9bn for Vanguard Morningstar Mega Cap Growth ETF and $30.2bn for Vanguard Extended Market ETF.
Pair scorecard
Both cost 0.05% a year; their one-year returns differ by 2.8 points; MGK is 1.2 times larger.
| Measure | MGK | VXF |
|---|---|---|
| Return | ||
| Total return, 1 year | +7.8% | +10.6% |
| Drawdown | ||
| Below its high | 4.4%, high on Oct 6, 2026 | 6.6%, high on Aug 14, 2026 |
| Benchmark | ||
| What it tracks | Morningstar US Mega Cap Growth Index | S&P Completion Index |
| Cost and size | ||
| Expense ratio | 0.05% | 0.05% |
| Net assets, as of Sep 30, 2026 | $34.9bn | $30.2bn |
| Holdings | ||
| Holdings in common | 1% | |
| Top ten holdings, share of the fund | 64.5% | 11.3% |
Holdings in common uses holdings dated Sep 30, 2026. Method
Risk and return
Jan 4, 2008 to Oct 23, 2026 · 981 weekly returnsMGK returned more: +1,024.1% to +487.2%. MGK swung less: 19.5% to 22.6%. MGK fell less at its worst: −46.4% to −54.0%.
Full scorecard
9 measures, with how each is measured Open ↓
| Measure | MGK | VXF | Edge | How it is measured |
|---|---|---|---|---|
| Return | ||||
| Total return | +1,024.1% | +487.2% | MGK | Price change plus distributions, reinvested. |
| Annualized | +13.7% | +9.8% | MGK | Total return as a yearly rate. |
| Price return | +823.8% | +359.5% | MGK | Price change alone, distributions left out. |
| Risk | ||||
| Volatility | 19.5% | 22.6% | MGK | Spread of weekly returns, annualized. Lower is steadier. |
| Downside deviation | 13.3% | 15.9% | MGK | Like volatility, counting only weeks below the Treasury bill rate. |
| Max drawdown | −46.4% | −54.0% | MGK | Deepest fall from a high to the low after it. |
| Risk-adjusted | ||||
| Sharpe | 0.68 | 0.46 | MGK | Return above Treasury bills per unit of volatility. |
| Sortino | 1.00 | 0.66 | MGK | Return above Treasury bills per unit of downside deviation. |
| Calmar | 0.30 | 0.18 | MGK | Annualized return divided by the max drawdown. |
Computed by ETFIQ from Tiingo daily prices and ETFIQ's distribution records, 981 weekly returns. Cash rate: the 13-week Treasury bill.
What they share
By the books each fund has filed, MGK and VXF hold 1% of their money in the same securities at the same weight. Holdings dated Sep 30, 2026.
half
1% in common
Only in one fund ↓
Side by side
MGK and VXF on the fields both publish, as of Oct 28, 2026. Source: ETFIQ.
MGK and VXF do different jobs. What does each one do in a portfolio?
- What each follows. MGK follows Morningstar US Mega Cap Growth Index and VXF follows S&P Completion Index.
- Holdings in common. 1% of the weight is in the same securities (holdings dated Sep 30, 2026).
- One-year total return. Over 1 year to Oct 28, 2026 MGK returned +7.8% and VXF +10.6% with distributions reinvested, a gap of 2.8 points.
Data as of Oct 28, 2026.
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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.
VXF
VXF tracks an index of Extended Market. Over the year to Oct 28, 2026 it returned +10.6% with distributions reinvested. By its holdings published by its issuer as of Sep 30, 2026, 0% of the fund by weight is stocks the S&P 500 also holds, across 3,361 positions, with the top ten at 11.3%. It sat 6.6% below its high of Aug 14, 2026 on Oct 28, 2026.
Questions people ask
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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 VXF, data as of Oct 28, 2026. https://etfiq.com/compare/any/mgk-vs-vxf
ETFIQ. (Oct 28, 2026). MGK against VXF. Retrieved from https://etfiq.com/compare/any/mgk-vs-vxf
[MGK against VXF (ETFIQ, Oct 28, 2026)](https://etfiq.com/compare/any/mgk-vs-vxf)
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