MDYG vs VO: Differences, Returns & Fees

MDYG and VO hold 0% of their weight in the same names, and MDYG returned +14.9% over the year. Net assets: $2.8bn on Oct 20, 2026 for State Street SPDR S & P 400 Mid Cap Growth ETF, and $103.4bn on Sep 30, 2026 for Vanguard Morningstar Mid-Cap ETF.

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Answers cite the figures on this page.

VO costs 0.12 points a year less; their one-year returns differ by 2.5 points; VO is far larger, $103.4bn against $2.8bn.

MDYG vs VO: Differences, Returns & Fees
MDYGVO
Expense ratio0.15%0.03%
Net assets, as of Sep 30, 2026$2.8bn$103.4bn
Total return, 1 year+14.9%+12.4%
What it tracksS&P MidCap 400 Growth IndexMorningstar US Mid Cap Index (formerly CRSP US Mid Cap Index)
Holdings in common0%
Top ten holdings, share of the fund13.6%9.7%
Below its high8.2%, high on Aug 17, 20263.8%, high on Aug 14, 2026

Holdings in common uses holdings dated Sep 30, 2026 and Oct 19, 2026.

+14.9%
MDYG total return, 1 year
+12.4%
VO total return, 1 year
0.15%
MDYG expense ratio
0.03%
VO expense ratio

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Client brief · page 1 of 2Report BR-BDF7288C04

MDYG and VO are built for the same job. How do they differ in cost, holdings and results?

  1. What each follows. MDYG follows S&P MidCap 400 Growth Index and VO follows Morningstar US Mid Cap Index (formerly CRSP US Mid Cap Index).
  2. Holdings in common. 0% of the weight is in the same securities (holdings dated Oct 19, 2026 and Sep 30, 2026).
  3. One-year total return. Over 1 year to Oct 20, 2026 MDYG returned +14.9% and VO +12.4% with distributions reinvested, a gap of 2.5 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, MDYG and VO hold 0% of their money in the same securities at the same weight. Holdings dated Sep 30, 2026 and Oct 19, 2026.

half

0% in common

Positions both hold, largest shared weight first
Holding MDYG VO
Only in MDYG
OKTA INC 1.83%
TECHNIPFMC PLC 1.59%
ATI INC 1.49%
UNITED THERAPEUTICS CORP 1.35%
NVENT ELECTRIC PLC 1.33%
XPO INC 1.26%
TENET HEALTHCARE CORP 1.24%
ROKU INC 1.19%
Only in VO
Cloudflare Inc 1.11%
Valero Energy Corp 1.10%
Marathon Petroleum Corp 1.10%
Phillips 66 1.01%
Quanta Services Inc 0.95%
Vertiv Holdings Co 0.92%
Datadog Inc 0.91%
Howmet Aerospace Inc 0.89%

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On the same fields

MDYG
State Street SPDR S & P 400 Mid Cap Growth ETF
VO
Vanguard Morningstar Mid-Cap ETF
Where it sits Stock ETF Stock ETF
What it is Tracks an index Tracks an index of Mid-Cap
Total return, 1 year +14.9% +12.4%
Its benchmark over the same days +14.9% (IJK) not measured
Gap to its benchmark 0.0 pts vs IJK not measured
Expense ratio 0.15% 0.03%
Already in the S&P 500 0.0% 91.1%
Holdings 247 273
Net assets, MDYG as of Oct 20, 2026 and VO as of Sep 30, 2026 $2.8bn $103.4bn

MDYG and VO 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 VO

VO tracks an index of Mid-Cap. Over the year to Oct 20, 2026 it returned +12.4% with distributions reinvested. The prospectus expense ratio is 0.03% a year. By its holdings published by its issuer as of Sep 30, 2026, 91% of the fund by weight is stocks the S&P 500 also holds, across 273 positions, with the top ten at 9.7%. It sat 3.8% below its high of Aug 14, 2026 on Oct 20, 2026.

Questions people ask

Which returned more over the last year, MDYG or VO?
In the year to Oct 20, 2026, with distributions reinvested, MDYG returned +14.9% and VO +12.4%.
Which is cheaper, MDYG or VO?
VO 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.
How much do MDYG and VO overlap with the S&P 500?
By their latest filed holdings, 0% of MDYG and 91% of VO by weight is stocks the S&P 500 already holds.
Cite this pageCitation, APA and Markdown

ETFIQ, MDYG against VO, data as of Oct 20, 2026. https://etfiq.com/compare/any/mdyg-vs-vo

Open data

Free to use with attribution for figures ETFIQ computes; issuer data stays under its owner's terms.