KOMP vs MDYG: Differences, Returns & Fees

KOMP and MDYG hold 8% of their weight in the same names, and MDYG returned +14.9% over the year. Net assets on Oct 20, 2026: $2.5bn for State Street SPDR S&P Kensho New Economies Composite ETF and $2.8bn for State Street SPDR S & P 400 Mid Cap Growth ETF.

Ask IQ about this page

Ask IQ about KOMP and MDYG

Answers cite the figures on this page.

MDYG costs 0.05 points a year less; their one-year returns differ by 15.7 points; MDYG is 1.1 times larger.

KOMP vs MDYG: Differences, Returns & Fees
KOMPMDYG
Expense ratio0.20%0.15%
Net assets$2.5bn$2.8bn
Total return, 1 year−0.8%+14.9%
What it tracksS&P Kensho New Economies Composite IndexS&P MidCap 400 Growth Index
Holdings in common8%
Top ten holdings, share of the fund10.9%13.6%
Below its high16.1%, high on Jun 2, 20268.2%, high on Aug 17, 2026

Holdings in common uses holdings dated Oct 19, 2026.

−0.8%
KOMP total return, 1 year
+14.9%
MDYG total return, 1 year
0.20%
KOMP expense ratio
0.15%
MDYG expense ratio

Get KOMP and MDYG fund flows by email, every Monday.

Plus the Friday ETF note. Confirm from the link that arrives, and unsubscribe in one click. See Privacy.

Client brief · page 1 of 2Report BR-4A86E56EC9

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

  1. What each follows. KOMP follows S&P Kensho New Economies Composite Index and MDYG follows S&P MidCap 400 Growth Index.
  2. Holdings in common. 8% of the weight is in the same securities (holdings dated Oct 19, 2026).
  3. One-year total return. Over 1 year to Oct 20, 2026 KOMP returned −0.8% and MDYG +14.9% with distributions reinvested, a gap of 15.7 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.

Take this comparison to a client

The two-page PDF for this pair is coming. Save the comparison to follow its changes. Free. It needs an email sign-in, once.

Not advice. The brief uses the figures on this page, with the data date and a report id. Saved comparisons are listed on your saved page; privacy.

What they hold in common

By the books each fund has filed, KOMP and MDYG hold 8% of their money in the same securities at the same weight. Holdings dated Oct 19, 2026.

half

8% in common

Positions both hold, largest shared weight first
Holding KOMP MDYG
APPLIED INDUSTRIAL TECH INC 0.42% 0.39%
CARPENTER TECHNOLOGY 0.38% 1.08%
ATI INC 0.37% 1.49%
SANMINA CORP 0.33% 0.55%
KRATOS DEFENSE + SECURITY 0.33% 0.43%
LATTICE SEMICONDUCTOR CORP 0.32% 0.53%
ORMAT TECHNOLOGIES INC 0.36% 0.31%
VALMONT INDUSTRIES 0.33% 0.30%
OKTA INC 0.30% 1.83%
DROPBOX INC CLASS A 0.27% 0.30%
ROKU INC 0.27% 1.19%
COGNEX CORP 0.45% 0.27%
Only in KOMP
TWIST BIOSCIENCE CORP 1.58%
PTC INC 1.44%
3D SYSTEMS CORP 1.21%
ELBIT SYSTEMS LTD 1.07%
UNITY SOFTWARE INC 1.04%
HIMAX TECHNOLOGIES INC ADR 0.96%
AMBARELLA INC 0.88%
NVIDIA CORP 0.84%
Only in MDYG
UNITED THERAPEUTICS CORP 1.35%
NVENT ELECTRIC PLC 1.33%
XPO INC 1.26%
TENET HEALTHCARE CORP 1.24%
ROYAL GOLD INC 1.16%
WOODWARD INC 1.13%
MACOM TECHNOLOGY SOLUTIONS H 1.07%
CURTISS WRIGHT CORP 1.06%

Check overlap with more funds →

On the same fields

KOMP
State Street SPDR S&P Kensho New Economies Composite ETF
MDYG
State Street SPDR S & P 400 Mid Cap Growth ETF
Where it sits Stock ETF Stock ETF
What it is Tracks an index Tracks an index
Total return, 1 year −0.8% +14.9%
Its benchmark over the same days +15.9% (VOO) +14.9% (IJK)
Gap to its benchmark −16.7 pts vs VOO 0.0 pts vs IJK
Expense ratio 0.20% 0.15%
Already in the S&P 500 24.8% 0.0%
Holdings 503 247
Net assets $2.5bn $2.8bn

KOMP and MDYG on the fields both publish, as of Oct 20, 2026. Source: ETFIQ.

About KOMP

KOMP tracks an index. Over the year to Oct 20, 2026 it returned −0.8% with distributions reinvested, against +15.9% for its benchmark, the S&P 500 Index. The prospectus expense ratio is 0.20% a year. By its holdings published by its issuer for Oct 19, 2026, 25% of the fund by weight is stocks the S&P 500 also holds, across 503 positions, with the top ten at 10.9%. It sat 16.1% below its high of Jun 2, 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, KOMP or MDYG?
In the year to Oct 20, 2026, with distributions reinvested, KOMP returned −0.8% and MDYG +14.9%.
Which is cheaper, KOMP or MDYG?
MDYG 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.
How much do KOMP and MDYG overlap with the S&P 500?
By their latest filed holdings, 25% of KOMP and 0% of MDYG by weight is stocks the S&P 500 already holds.
Cite this pageCitation, APA and Markdown

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

Open data

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