IVOG vs MDYG: Differences, Returns & Fees
IVOG and MDYG hold 94% of their weight in the same names. Net assets: $1.7bn on Sep 30, 2026 for Vanguard S&P Mid-Cap 400 Growth ETF, and $2.8bn on Oct 20, 2026 for State Street SPDR S & P 400 Mid Cap Growth ETF.
IVOG costs 0.05 points a year less; their one-year returns differ by 0.1 points; MDYG is 1.6 times larger.
| IVOG | MDYG | |
|---|---|---|
| Expense ratio | 0.10% | 0.15% |
| Net assets, as of Sep 30, 2026 | $1.7bn | $2.8bn |
| Total return, 1 year | +15.0% | +14.9% |
| What it tracks | S&P MidCap 400 Growth Index | S&P MidCap 400 Growth Index |
| Holdings in common | 94% | |
| Top ten holdings, share of the fund | 14.7% | 13.6% |
| Below its high | 8.1%, high on Aug 14, 2026 | 8.2%, high on Aug 17, 2026 |
Holdings in common uses holdings dated Sep 30, 2026 and Oct 19, 2026.
IVOG and MDYG are built for the same job. How do they differ in cost, holdings and results?
- What each follows (similar). Both follow S&P MidCap 400 Growth Index.
- Holdings in common (similar). 94% of the weight is in the same securities (holdings dated Sep 30, 2026 and Oct 19, 2026).
- One-year total return (similar). Over 1 year to Oct 20, 2026 IVOG returned +15.0% and MDYG +14.9% with distributions reinvested, a gap of 0.1 points.
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, IVOG and MDYG hold 94% of their money in the same securities at the same weight. Holdings dated Sep 30, 2026 and Oct 19, 2026.
half
94% in common
On the same fields
IVOG and MDYG on the fields both publish, as of Oct 20, 2026. Source: ETFIQ.
About IVOG
IVOG tracks an index. Over the year to Oct 20, 2026 it returned +15.0% with distributions reinvested, against +14.9% for its benchmark, the S&P MidCap 400 Growth Index. The prospectus expense ratio is 0.10% a year. By its holdings published by its issuer as of Sep 30, 2026, 3% of the fund by weight is stocks the S&P 500 also holds, across 249 positions, with the top ten at 14.7%. It sat 8.1% below its high of Aug 14, 2026 on Oct 20, 2026.
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.
Questions people ask
- Which returned more over the last year, IVOG or MDYG?
- In the year to Oct 20, 2026, with distributions reinvested, IVOG returned +15.0% and MDYG +14.9%.
- Which is cheaper, IVOG or MDYG?
- IVOG is cheaper, by 0.05 percentage points a year. That is about $5 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.
Cite this pageCitation, APA and Markdown
ETFIQ, IVOG against MDYG, data as of Oct 20, 2026. https://etfiq.com/compare/any/ivog-vs-mdyg
ETFIQ. (Oct 20, 2026). IVOG against MDYG. Retrieved from https://etfiq.com/compare/any/ivog-vs-mdyg
[IVOG against MDYG (ETFIQ, Oct 20, 2026)](https://etfiq.com/compare/any/ivog-vs-mdyg)
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