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IVOGvsMDYGETF Comparison

ETF 1

IVOG

Vanguard S&P Mid-Cap 400 Growth ETF

This fund is part of

US Mid Cap Growth

+0.17%

Full IVOG fund page

VS

ETF 2

MDYG

State Street SPDR S&P 400 Mid Cap Growth ETF

This fund is part of

US Mid Cap Growth

+0.17%

Full MDYG fund page

The ETFs Vanguard S&P Mid-Cap 400 Growth ETF (IVOG) and State Street SPDR S&P 400 Mid Cap Growth ETF (MDYG) track the S&P MidCap 400 Growth Total Return Index - USD and belong to the same industry segment: US Mid Cap Growth. Both ETFs have the same top 3 sector exposures: Industrials, Information Technology and Health Care. IVOG is less expensive with a Total Expense Ratio (TER) of 0.1%, versus 0.15% for MDYG. IVOG is up 12.74% year-to-date (YTD) with +$40M in YTD flows. MDYG performs worse with 12.73% YTD performance, and -$48M in YTD flows. Run a side-by-side ETF comparison of IVOG and MDYG below, and assess how they stack up in performance, liquidity, risk, exposure, holdings, and more, helping you select the best ETF for your investments.

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IVOG vs MDYG performance and flow charts

Performance

Cumulative Flows

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Daily, global ETF data for advanced analysis or integration into apps (API), from our partner Trackinsight.

Data Services

Historic performance and flows

Data as of 05/01/2026

		1M	3M	YTD	1Y	3Y	5Y
Perf.	IVOG MDYG	+7.26%+7.25%	+7.27%+7.26%	+12.74%+12.73%	+31.58%+31.52%	+57.15%+57.00%	+39.80%+39.66%
Flows	IVOG MDYG	+$18M+$10M	+$15M+$6M	+$40M-$48M	+$195M-$29M	+$378M+$12M	+$293M+$330M

Volatility and drawdown

		3M	1Y	3Y	5Y
Volatility	IVOG MDYG	+21.46%+21.45%	+17.14%+17.13%	+18.55%+18.62%	+20.77%+20.58%
Max drawdown	IVOG MDYG	-9.92%-9.91%	-9.92%-9.91%	-25.47%-25.46%	-29.28%-29.25%
Max drawdown duration	IVOG MDYG	45d45d	45d45d	379d379d	829d834d

Trading data

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	IVOG	MDYG
Last sale 5/1/2026 at 1:30 PM	$135.42	$104.06
Previous close 04/29/2026	$134.92	$103.68
Consolidated volume 04/29/2026
Average volume 30 days
Average discount or premium 30 days
Average Bid/Ask spread 30 days

Replication quality

Data as of April 30, 2026

1-year trailing difference

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	IVOG	MDYG
Tracking error
Tracking difference
1 year cumulative return difference
Best
Worst
Daily return difference
Average
Worst

Main metrics

Last update 5/1/2026 at 1:30 PM

Live

Closed

	IVOG	MDYG
Last price	$135.42	$104.06
1D performance	+0.37%	+0.37%
AuM	$1.56 B	$2.70 B
E/R	0.1%	0.15%

Characteristics

	IVOG	MDYG
Management strategy	Passive	Passive
Provider	Vanguard	State Street Investment Management
Benchmark	S&P MidCap 400 Growth Index	S&P MidCap 400 Growth Index
N° of holdings	232	232
Asset class	Equities	Equities
Trailing 12m distribution yield	Join	Join
Inception date	September 7, 2010	November 8, 2005
ESG	No	No

More IVOG data on Trackinsight

More MDYG data on Trackinsight

Exposure

Countries

IVOG

USA

90.27%

Other

9.73%

MDYG

USA

90.47%

Other

9.53%

Sectors

IVOG

Industrials

25.27%

Information Techn.

18.43%

Health Care

14.39%

Consumer Discreti.

9.21%

Other

32.7%

MDYG

Industrials

25.32%

Information Techn.

18.48%

Health Care

14.42%

Consumer Discreti.

9.23%

Other

32.55%

Diversification

IVOG

Total weight of top 15 holdings out of 15

20.14%

MDYG

Total weight of top 15 holdings out of 15

20.19%

Top 15 holdings

Data as of March 31, 2026

IVOG

TECHNIPFMC PLC

1.71%

CASEYS GENERAL STORES

1.65%

UTD THERAPEUT

1.56%

CURTISS WRIGHT

1.54%

FLEX LTD

1.47%

XPO LOGISTICS

1.40%

WOODWARD

1.31%

ROYAL GOLD

1.26%

ATI INC

1.21%

MICHAEL STORES

1.21%

CARPENTER TECHNOLOGY

1.20%

NVENT ELECTRIC PLC

1.17%

TWILIO

1.17%

BWX TECHNOLOGIES INC

1.14%

FABRINET

1.14%

MDYG

TECHNIPFMC PLC

1.71%

CASEYS GENERAL STORES

1.66%

UTD THERAPEUT

1.57%

CURTISS WRIGHT

1.54%

FLEX LTD

1.48%

XPO LOGISTICS

1.40%

WOODWARD

1.31%

ROYAL GOLD

1.26%

ATI INC

1.21%

MICHAEL STORES

1.21%

CARPENTER TECHNOLOGY

1.20%

NVENT ELECTRIC PLC

1.17%

TWILIO

1.17%

FABRINET

1.15%

BWX TECHNOLOGIES INC

1.15%

Frequently asked questions about IVOG and MDYG

How have the IVOG and MDYG ETFs performed in 2026?

As of May 1, 2026, IVOG is up 12.74% year-to-date (YTD), while MDYG has returned 12.73%. That puts IVOG better performer ahead so far this year.

Which ETF is attracting more investor money: IVOG or MDYG?

Year-to-date, the IVOG ETF saw +$40M in flows, compared to -$48M for MDYG.

Which ETF is more volatile: IVOG or MDYG?

Over the past year, IVOG had a volatility of 17.14%, while MDYG experienced 17.13%.

Which ETF is bigger: IVOG or MDYG?

As of May 1, 2026, IVOG holds $1.56 B in assets under management (AUM), while MDYG manages $2.70 B.

What sectors do the IVOG and MDYG ETFs invest in?

IVOG leans toward sectors like Industrials, Information Technology and Health Care. Meanwhile, MDYG focuses on Industrials, Information Technology and Health Care.

What are the top holdings of the IVOG ETF and MDYG ETF?

IVOG top holdings include TECHNIPFMC PLC, CASEYS GENERAL STORES and UTD THERAPEUT. MDYG holds in its top three: TECHNIPFMC PLC, CASEYS GENERAL STORES and UTD THERAPEUT.

IVOGvsMDYGETF Comparison

Vanguard S&P Mid-Cap 400 Growth ETF

State Street SPDR S&P 400 Mid Cap Growth ETF

IVOG vs MDYG performance and flow charts

Performance

Cumulative Flows

Get all the metrics on this page, and more, through a reliable ETF data feed

Countries

Sectors

Diversification

Top 15 holdings

How have the IVOG and MDYG ETFs performed in 2026?

As of May 1, 2026, IVOG is up 12.74% year-to-date (YTD), while MDYG has returned 12.73%. That puts IVOG better performer ahead so far this year.

Which ETF is attracting more investor money: IVOG or MDYG?

Year-to-date, the IVOG ETF saw +$40M in flows, compared to -$48M for MDYG.

Which ETF is more volatile: IVOG or MDYG?

Over the past year, IVOG had a volatility of 17.14%, while MDYG experienced 17.13%.

Which ETF is bigger: IVOG or MDYG?

As of May 1, 2026, IVOG holds $1.56 B in assets under management (AUM), while MDYG manages $2.70 B.

What sectors do the IVOG and MDYG ETFs invest in?

IVOG leans toward sectors like Industrials, Information Technology and Health Care. Meanwhile, MDYG focuses on Industrials, Information Technology and Health Care.

What are the top holdings of the IVOG ETF and MDYG ETF?

IVOG top holdings include TECHNIPFMC PLC, CASEYS GENERAL STORES and UTD THERAPEUT. MDYG holds in its top three: TECHNIPFMC PLC, CASEYS GENERAL STORES and UTD THERAPEUT.

Which ETF is more diversified: IVOG or MDYG?

IVOG holds 242 securities with 20.14% of its assets in the top 15. MDYG has 242 securities and a top 15 weight of 20.19%.

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