BROUGHT TO YOU BY:

ETF Portfolio Builder

New

ETF Portfolio Builder

New

IWPvsMIDETF Comparison

ETF 1

IWP

iShares Russell Mid-Cap Growth ETF

This fund is part of

US Mid Cap Growth

-0.21%

Full IWP fund page

VS

ETF 2

MID

American Century Mid Cap Growth Impact ETF

This fund is part of

US Mid Cap Growth

-0.21%

Full MID fund page

iShares Russell Mid-Cap Growth ETF (IWP) and American Century Mid Cap Growth Impact ETF (MID) belong to the same industry segment: US Mid Cap Growth. IWP's top 3 sector exposures are Industrials, Consumer Discretionary and Information Technology. In contrast, MID's top sector exposures are Industrials, Information Technology and Health Care. IWP is less expensive with a Total Expense Ratio (TER) of 0.23%, versus 0.45% for MID. IWP is down -0.6% year-to-date (YTD) with -$863M in YTD flows. MID performs better with 1.56% YTD performance, and -$5M in YTD flows. Run a side-by-side ETF comparison of IWP and MID 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

IWP vs MID 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 04/27/2026

		1M	3M	YTD	1Y	3Y	5Y
Perf.	IWP MID	+8.81%+6.99%	-2.73%-2.43%	-0.60%+1.56%	+13.12%+17.05%	+54.84%+48.92%	+26.37%+23.37%
Flows	IWP MID	-$471M+$629K	-$630M-$7M	-$863M-$5M	+$486M+$7M	+$1.34B+$31M	+$527M+$59M

Volatility and drawdown

		3M	1Y	3Y	5Y
Volatility	IWP MID	+21.88%+21.97%	+17.39%+17.54%	+19.40%+20.01%	+22.43%+23.98%
Max drawdown	IWP MID	-11.58%-13.31%	-14.82%-14.34%	-25.34%-23.84%	-38.70%-40.04%
Max drawdown duration	IWP MID	90d87d	182d179d	134d154d	1059d1060d

Trading data

Create an account to view trading data

Join for free

	IWP	MID
Last sale 4/28/2026 at 1:30 PM	$134.06	$64.96
Previous close 04/27/2026	$135.92	$66.14
Consolidated volume 04/27/2026
Average volume 30 days
Average discount or premium 30 days
Average Bid/Ask spread 30 days

Replication quality

Data as of March 31, 2026

1-year trailing difference

Create an account to view replication metrics

Join for free

MID

is actively managed and doesn’t replicate an index

Create an account to view replication quality

Join for free

	IWP	MID
Tracking error
Tracking difference
1 year cumulative return difference
Best
Worst
Daily return difference
Average
Worst

Main metrics

Last update 4/28/2026 at 1:30 PM

Live

Closed

	IWP	MID
Last price	$134.06	$64.96
1D performance	-1.37%	-1.77%
AuM	$19.51 B	$93.22 M
E/R	0.23%	0.45%

Characteristics

	IWP	MID
Management strategy	Passive	Active
Provider	iShares	American Century Investments
Benchmark	Russell Midcap Growth Index	-
N° of holdings	242	34
Asset class	Equities	-
Trailing 12m distribution yield	Join	Join
Inception date	July 17, 2001	July 15, 2020
ESG	No	Yes

More IWP data on Trackinsight

More MID data on Trackinsight

Exposure

Countries

IWP

USA

93.51%

Other

6.49%

MID

USA

79.4%

Other

20.6%

Sectors

IWP

Industrials

20.24%

Consumer Discreti.

20.16%

Information Techn.

17.63%

Health Care

14.62%

Other

27.34%

MID

Industrials

22.13%

Information Techn.

21.82%

Health Care

15.25%

Consumer Discreti.

11.99%

Energy

7.12%

Other

21.69%

Diversification

IWP

Total weight of top 15 holdings out of 15

31.92%

MID

Total weight of top 15 holdings out of 15

60.89%

Top 15 holdings

Data as of March 31, 2026

IWP

VERTIV HOLDINGS

3.43%

HOWMET AEROSPACE INC

3.32%

ROYAL CARIBBEAN GROUP

2.51%

HILTON INC

2.49%

CLOUDFLARE INC

2.33%

QUANTA SERVICES

2.25%

AMERISOURCEBERGEN

2.07%

TARGA RESOURCS

1.92%

VISTRA CORP

1.83%

MONOLITHIC POWER SYSTEMS

1.82%

COMFORT SYSTEMS USA

1.73%

IDEXX LABORATORIES

1.61%

FASTENAL

1.57%

CARVANA CO

1.53%

ALNYLAM PHARMACEUTICALS

1.51%

MID

CLOUDFLARE INC

6.85%

MONOLITHIC POWER SYSTEMS

6.34%

JOHNSON CONTROLS INTERNATIONAL

5.84%

TARGA RESOURCS

4.90%

TRACTOR SUPPLY

4.54%

VISTRA CORP

4.29%

CADENCE DESIGN SYSTEMS

3.96%

WESCO INTL

3.93%

VERTIV HOLDINGS

3.33%

MSCI

3.31%

HUBBELL

3.06%

REPUBLIC SVCS

2.89%

TOPBUILD CORP

2.64%

ALNYLAM PHARMACEUTICALS

2.60%

ZSCALER INC

2.41%

Frequently asked questions about IWP and MID

How have the IWP and MID ETFs performed in 2026?

As of April 27, 2026, IWP is down -0.6% year-to-date (YTD), while MID has returned 1.56%. That puts MID better performer ahead so far this year.

Which ETF is attracting more investor money: IWP or MID?

Year-to-date, the IWP ETF saw -$863M in flows, compared to -$5M for MID.

Which ETF is more volatile: IWP or MID?

Over the past year, IWP had a volatility of 17.39%, while MID experienced 17.54%.

Which ETF is bigger: IWP or MID?

As of April 27, 2026, IWP holds $19.51 B in assets under management (AUM), while MID manages $93.22 M.

What sectors do the IWP and MID ETFs invest in?

IWP leans toward sectors like Industrials, Consumer Discretionary and Information Technology. Meanwhile, MID focuses on Industrials, Information Technology and Health Care.

What are the top holdings of the IWP ETF and MID ETF?

IWP top holdings include VERTIV HOLDINGS, HOWMET AEROSPACE INC and ROYAL CARIBBEAN GROUP. MID holds in its top three: CLOUDFLARE INC, MONOLITHIC POWER SYSTEMS and JOHNSON CONTROLS INTERNATIONAL.

IWPvsMIDETF Comparison

iShares Russell Mid-Cap Growth ETF

American Century Mid Cap Growth Impact ETF

IWP vs MID 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 IWP and MID ETFs performed in 2026?

As of April 27, 2026, IWP is down -0.6% year-to-date (YTD), while MID has returned 1.56%. That puts MID better performer ahead so far this year.

Which ETF is attracting more investor money: IWP or MID?

Year-to-date, the IWP ETF saw -$863M in flows, compared to -$5M for MID.

Which ETF is more volatile: IWP or MID?

Over the past year, IWP had a volatility of 17.39%, while MID experienced 17.54%.

Which ETF is bigger: IWP or MID?

As of April 27, 2026, IWP holds $19.51 B in assets under management (AUM), while MID manages $93.22 M.

What sectors do the IWP and MID ETFs invest in?

IWP leans toward sectors like Industrials, Consumer Discretionary and Information Technology. Meanwhile, MID focuses on Industrials, Information Technology and Health Care.

What are the top holdings of the IWP ETF and MID ETF?

IWP top holdings include VERTIV HOLDINGS, HOWMET AEROSPACE INC and ROYAL CARIBBEAN GROUP. MID holds in its top three: CLOUDFLARE INC, MONOLITHIC POWER SYSTEMS and JOHNSON CONTROLS INTERNATIONAL.

Which ETF is more diversified: IWP or MID?

IWP holds 278 securities with 31.92% of its assets in the top 15. MID has 34 securities and a top 15 weight of 60.89%.

Expert-Built ETF Portfolios, All in One Place