BROUGHT TO YOU BY:

ETF Portfolio Builder

New

ETF Portfolio Builder

New

IVOGvsMDYETF Comparison

ETF 1

IVOG

Vanguard S&P Mid-Cap 400 Growth ETF

This fund is part of

US Mid Cap Growth

-0.06%

Full IVOG fund page

VS

ETF 2

MDY

State Street SPDR S&P MIDCAP 400 ETF Trust

This fund is part of

US Mid Cap

-0.15%

Full MDY fund page

Vanguard S&P Mid-Cap 400 Growth ETF (IVOG) belongs to the US Mid Cap Growth segment. State Street SPDR S&P MIDCAP 400 ETF Trust (MDY) is part of the US Mid Cap segment. IVOG's top 3 sector exposures are Industrials, Technology and Healthcare. In contrast, MDY's top sector exposures are Finance, Industrials and Technology. IVOG is less expensive with a Total Expense Ratio (TER) of 0.1%, versus 0.23% for MDY. IVOG is up 15.82% year-to-date (YTD) with +$68M in YTD flows. MDY performs worse with 14.29% YTD performance, and -$947M in YTD flows. Run a side-by-side ETF comparison of IVOG and MDY below, and assess how they stack up in performance, liquidity, risk, exposure, holdings, and more, helping you select the best ETF for your investments.

Find out how industry players manage ETF portfolios. Discover our library of Model portfolios

IVOG vs MDY performance and flow charts

Performance

Cumulative Flows

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

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 07/31/2026

		1M	3M	YTD	1Y	3Y	5Y
Perf.	IVOG MDY	-3.57%-1.56%	+2.73%+3.51%	+15.82%+14.29%	+21.19%+20.50%	+47.48%+42.79%	+43.72%+47.31%
Flows	IVOG MDY	+$17M-$900M	+$27M-$381M	+$68M-$947M	+$239M-$655M	+$410M-$902M	+$336M-$2.15B

Volatility and drawdown

		3M	1Y	3Y	5Y
Volatility	IVOG MDY	+18.04%+14.83%	+17.67%+15.69%	+18.79%+17.80%	+20.86%+19.77%
Max drawdown	IVOG MDY	-6.03%-4.24%	-9.92%-8.78%	-25.47%-23.91%	-29.28%-23.91%
Max drawdown duration	IVOG MDY	31d26d	45d53d	379d379d	829d379d

Trading data

Create an account to view trading data

Join for free

	IVOG	MDY
Last sale 7/31/2026 at 1:30 PM	$139.28	$686.32
Previous close 07/30/2026	$139.38	$687.19
Consolidated volume 07/30/2026
Average volume 30 days
Average discount or premium 30 days
Average Bid/Ask spread 30 days

Replication quality

Data as of July 31, 2026

1-year trailing difference

Create an account to view replication metrics

Join for free

Create an account to view replication quality

Join for free

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

Main metrics

Last update 7/31/2026 at 1:30 PM

Live

Closed

	IVOG	MDY
Last price	$139.28	$686.32
1D performance	-0.07%	-0.13%
AuM	$1.63 B	$26.49 B
E/R	0.1%	0.23%

Characteristics

	IVOG	MDY
Management strategy	Passive	Passive
Provider	Vanguard	State Street Investment Management
Benchmark	S&P MidCap 400 Growth Index	S&P MidCap 400 Index
N° of holdings	245	400
Asset class	Equities	Equities
Trailing 12m distribution yield	Join	Join
Inception date	September 7, 2010	May 4, 1995
ESG	No	No

More IVOG data on Trackinsight

More MDY data on Trackinsight

Exposure

Countries

IVOG

USA

93.92%

Other

6.08%

MDY

USA

95.41%

Other

4.59%

Sectors

IVOG

Industrials

22.63%

Technology

21.32%

Healthcare

13.11%

Finance

12.98%

Non-Energy Materi.

9.35%

Other

20.6%

MDY

Finance

21.51%

Industrials

18.53%

Technology

15.28%

Non-Energy Materi.

10.61%

Healthcare

8.49%

Other

25.58%

Diversification

IVOG

Total weight of top 15 holdings out of 15

19.96%

MDY

Total weight of top 15 holdings out of 15

11.09%

Top 15 holdings

Data as of June 30, 2026

IVOG

Twilio, Inc.

1.63%

Curtiss-Wright Corp.

1.46%

nVent Electric Plc

1.43%

ATI, Inc.

1.40%

TechnipFMC plc

1.38%

Sterling Infrastructure, Inc.

1.34%

MasTec, Inc.

1.34%

Woodward, Inc.

1.32%

MACOM Technology Solutions Holdings, Inc.

1.30%

Everpure, Inc.

1.30%

Carpenter Technology Corp.

1.27%

XPO, Inc.

1.26%

United Therapeutics Corp.

1.20%

Okta, Inc.

1.19%

RB Global, Inc.

1.13%

MDY

Twilio, Inc.

0.86%

Carpenter Technology Corp.

0.84%

MKS, Inc.

0.82%

Curtiss-Wright Corp.

0.77%

nVent Electric Plc

0.75%

Entegris, Inc.

0.75%

ATI, Inc.

0.74%

Illumina, Inc.

0.73%

TechnipFMC plc

0.72%

Sterling Infrastructure, Inc.

0.70%

MasTec, Inc.

0.70%

Woodward, Inc.

0.69%

MACOM Technology Solutions Holdings, Inc.

0.68%

Everpure, Inc.

0.68%

XPO, Inc.

0.66%

Frequently asked questions about IVOG and MDY

How have the IVOG and MDY ETFs performed in 2026?

As of July 31, 2026, IVOG is up 15.82% year-to-date (YTD), while MDY has returned 14.29%. That puts IVOG better performer ahead so far this year.

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

Year-to-date, the IVOG ETF saw +$68M in flows, compared to -$947M for MDY.

Which ETF is more volatile: IVOG or MDY?

Over the past year, IVOG had a volatility of 17.67%, while MDY experienced 15.69%.

Which ETF is bigger: IVOG or MDY?

As of July 31, 2026, IVOG holds $1.63 B in assets under management (AUM), while MDY manages $26.49 B.

What sectors do the IVOG and MDY ETFs invest in?

IVOG leans toward sectors like Industrials, Technology and Healthcare. Meanwhile, MDY focuses on Finance, Industrials and Technology.

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

IVOG top holdings include Twilio, Inc., Curtiss-Wright Corp. and nVent Electric Plc. MDY holds in its top three: Twilio, Inc., Carpenter Technology Corp. and MKS, Inc..

IVOGvsMDYETF Comparison

Vanguard S&P Mid-Cap 400 Growth ETF

State Street SPDR S&P MIDCAP 400 ETF Trust

IVOG vs MDY 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 MDY ETFs performed in 2026?

As of July 31, 2026, IVOG is up 15.82% year-to-date (YTD), while MDY has returned 14.29%. That puts IVOG better performer ahead so far this year.

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

Year-to-date, the IVOG ETF saw +$68M in flows, compared to -$947M for MDY.

Which ETF is more volatile: IVOG or MDY?

Over the past year, IVOG had a volatility of 17.67%, while MDY experienced 15.69%.

Which ETF is bigger: IVOG or MDY?

As of July 31, 2026, IVOG holds $1.63 B in assets under management (AUM), while MDY manages $26.49 B.

What sectors do the IVOG and MDY ETFs invest in?

IVOG leans toward sectors like Industrials, Technology and Healthcare. Meanwhile, MDY focuses on Finance, Industrials and Technology.

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

IVOG top holdings include Twilio, Inc., Curtiss-Wright Corp. and nVent Electric Plc. MDY holds in its top three: Twilio, Inc., Carpenter Technology Corp. and MKS, Inc..

Which ETF is more diversified: IVOG or MDY?

IVOG holds 245 securities with 19.96% of its assets in the top 15. MDY has 400 securities and a top 15 weight of 11.09%.

Active Trader Report: Use of Leveraged & Inverse ETFs Way Up