Data as of Oct 28, 2026.
MGK vs SPSB: Differences, Returns & Fees
Over the year to Oct 28, 2026, MGK returned +7.8% to SPSB's +2.2%; 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 $11.3bn on Oct 27, 2026 for State Street SPDR Portfolio Short Term Corporate Bond ETF.
Pair scorecard
SPSB costs 0.01 points a year less; their one-year returns differ by 5.6 points; MGK is 3.1 times larger.
| Measure | MGK | SPSB |
|---|---|---|
| Return | ||
| Total return, 1 year | +7.8% | +2.2% |
| Drawdown | ||
| Below its high | 4.4%, high on Oct 6, 2026 | |
| Benchmark | ||
| What it tracks | Morningstar US Mega Cap Growth Index | Bloomberg U.S. 1-3 Year Corporate Bond Index |
| Cost and size | ||
| Expense ratio | 0.05% | 0.04% |
| Net assets, as of Sep 30, 2026 | $34.9bn | $11.1bn |
| Holdings | ||
| Holdings in common | 0% | |
| In the S&P 500, by weight | 99% | |
| Top ten holdings, share of the fund | 64.5% | |
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 SPSB 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 SPSB 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.
SPSB
SPSB tracks an index of Short Term Corporate Bond. Over the year to Oct 28, 2026 it returned +2.2% with distributions reinvested, against −1.4% for its benchmark, the Bloomberg U.S. Aggregate Bond Index. The prospectus expense ratio is 0.04% a year.
Questions people ask
- Which returned more over the last year, MGK or SPSB?
- In the year to Oct 28, 2026, with distributions reinvested, MGK returned +7.8% and SPSB +2.2%.
- Which is cheaper, MGK or SPSB?
- SPSB is cheaper, by 0.01 percentage points a year. That is about $1 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 SPSB, data as of Oct 28, 2026. https://etfiq.com/compare/any/mgk-vs-spsb
ETFIQ. (Oct 28, 2026). MGK against SPSB. Retrieved from https://etfiq.com/compare/any/mgk-vs-spsb
[MGK against SPSB (ETFIQ, Oct 28, 2026)](https://etfiq.com/compare/any/mgk-vs-spsb)
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