MDYG vs SPTM: Differences, Returns & Fees
MDYG and SPTM hold 3% of their weight in the same names, and SPTM returned +15.7% over the year. Net assets on Oct 20, 2026: $2.8bn for State Street SPDR S & P 400 Mid Cap Growth ETF and $14.1bn for State Street SPDR Portfolio S&P 1500 Composite Stock Market ETF.
SPTM costs 0.12 points a year less; their one-year returns differ by 0.8 points; SPTM is 5.0 times larger.
| MDYG | SPTM | |
|---|---|---|
| Expense ratio | 0.15% | 0.03% |
| Net assets | $2.8bn | $14.1bn |
| Total return, 1 year | +14.9% | +15.7% |
| What it tracks | S&P MidCap 400 Growth Index | S&P Composite 1500 Index |
| Holdings in common | 3% | |
| Top ten holdings, share of the fund | 13.6% | 35.8% |
| Below its high | 8.2%, high on Aug 17, 2026 | |
Holdings in common uses holdings dated Oct 19, 2026.
MDYG and SPTM are built for the same job. How do they differ in cost, holdings and results?
- What each follows. MDYG follows S&P MidCap 400 Growth Index and SPTM follows S&P Composite 1500 Index.
- Holdings in common. 3% of the weight is in the same securities (holdings dated Oct 19, 2026).
- Number of holdings. MDYG holds 247 positions and SPTM holds 1512.
Data as of Oct 20, 2026. The differences are picked by a fixed rule, in a fixed order; the PDF prints it. Page 2 has the returns, overlap, risks and sources.
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What they hold in common
By the books each fund has filed, MDYG and SPTM hold 3% of their money in the same securities at the same weight. Holdings dated Oct 19, 2026.
half
3% in common
On the same fields
MDYG and SPTM on the fields both publish, as of Oct 20, 2026. Source: ETFIQ.
About MDYG
MDYG tracks an index. Over the year to Oct 20, 2026 it returned +14.9% with distributions reinvested, against +14.9% for its benchmark, the S&P MidCap 400 Growth Index. The prospectus expense ratio is 0.15% a year. By its holdings published by its issuer for Oct 19, 2026, 0% of the fund by weight is stocks the S&P 500 also holds, across 247 positions, with the top ten at 13.6%. It sat 8.2% below its high of Aug 17, 2026 on Oct 20, 2026.
About SPTM
SPTM tracks an index. Over the year to Oct 20, 2026 it returned +15.7% with distributions reinvested, against +15.8% for its benchmark, the S&P 500 Index. The prospectus expense ratio is 0.03% a year. By its holdings published by its issuer for Oct 19, 2026, 92% of the fund by weight is stocks the S&P 500 also holds, across 1,512 positions, with the top ten at 35.8%.
Questions people ask
- Which returned more over the last year, MDYG or SPTM?
- In the year to Oct 20, 2026, with distributions reinvested, MDYG returned +14.9% and SPTM +15.7%.
- Which is cheaper, MDYG or SPTM?
- SPTM is cheaper, by 0.12 percentage points a year. That is about $12 on $10,000 held for a year. Fees come from each fund's prospectus.
ETFIQ links to the documents behind every figure; a link is not an endorsement. 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, MDYG against SPTM, data as of Oct 20, 2026. https://etfiq.com/compare/any/mdyg-vs-sptm
ETFIQ. (Oct 20, 2026). MDYG against SPTM. Retrieved from https://etfiq.com/compare/any/mdyg-vs-sptm
[MDYG against SPTM (ETFIQ, Oct 20, 2026)](https://etfiq.com/compare/any/mdyg-vs-sptm)
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