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IWSvsPHOETF Comparison

ETF 1

IWS

iShares Russell Mid-Cap Value ETF

This fund is part of

US Mid Cap Value

-0.39%

Full IWS fund page

VS

ETF 2

PHO

Invesco Water Resources ETF

This fund is part of

Natural Resources

+0.65%

Full PHO fund page

iShares Russell Mid-Cap Value ETF (IWS) belongs to the US Mid Cap Value segment. Invesco Water Resources ETF (PHO) is part of the Natural Resources segment. IWS's top 3 sector exposures are Finance, Industrials and Technology. In contrast, PHO's top sector exposures are Industrials, Healthcare and Non-Energy Materials. IWS is less expensive with a Total Expense Ratio (TER) of 0.23%, versus 0.59% for PHO. IWS is up 21.63% year-to-date (YTD) with -$1.31B in YTD flows. PHO performs worse with 3.97% YTD performance, and -$75M in YTD flows. Run a side-by-side ETF comparison of IWS and PHO 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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IWS vs PHO 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 08/05/2026

		1M	3M	YTD	1Y	3Y	5Y
Perf.	IWS PHO	+2.65%+4.45%	+8.44%+6.74%	+21.63%+3.97%	+28.79%+3.35%	+58.07%+28.27%	+59.86%+30.82%
Flows	IWS PHO	-$298M-$15M	-$378M-$119M	-$1.31B-$75M	-$1.11B-$177M	-$3.04B-$300M	-$3.74B-$241M

Volatility and drawdown

		3M	1Y	3Y	5Y
Volatility	IWS PHO	+13.02%+18.02%	+13.47%+16.26%	+15.42%+16.62%	+17.29%+18.39%
Max drawdown	IWS PHO	-2.87%-6.94%	-7.51%-13.83%	-20.45%-19.26%	-21.32%-28.58%
Max drawdown duration	IWS PHO	16d49d	44d288d	269d250d	785d715d

Trading data

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	IWS	PHO
Last sale 8/6/2026 at 1:30 PM	$169.87	$72.77
Previous close 08/05/2026	$170.45	$72.92
Consolidated volume 08/05/2026
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

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	IWS	PHO
Tracking error
Tracking difference
1 year cumulative return difference
Best
Worst
Daily return difference
Average
Worst

Main metrics

Last update 8/6/2026 at 1:30 PM

Live

Closed

	IWS	PHO
Last price	$169.87	$72.77
1D performance	-0.34%	-0.21%
AuM	$15.84 B	$2.08 B
E/R	0.23%	0.59%

Characteristics

	IWS	PHO
Management strategy	Passive	Passive
Provider	iShares	Invesco
Benchmark	Russell Midcap Value Index	NASDAQ OMX US Water Index
N° of holdings	706	40
Asset class	Equities	Equities
Trailing 12m distribution yield	Join	Join
Inception date	July 17, 2001	December 6, 2005
ESG	No	Yes

More IWS data on Trackinsight

More PHO data on Trackinsight

Exposure

Countries

IWS

USA

95.3%

Other

4.7%

PHO

USA

94.59%

Other

5.41%

Sectors

IWS

Finance

25.73%

Industrials

13.82%

Technology

10.69%

Healthcare

10.06%

Non-Energy Materi.

7.93%

Utilities

7.14%

Other

24.63%

PHO

Industrials

46.17%

Healthcare

17.05%

Non-Energy Materi.

16.79%

Technology

12.53%

Utilities

7.45%

Diversification

IWS

Total weight of top 15 holdings out of 15

8.62%

PHO

Total weight of top 15 holdings out of 15

72.4%

Top 15 holdings

Data as of June 30, 2026

IWS

Warner Bros. Discovery, Inc.

0.63%

Phillips 66

0.62%

Digital Realty Trust, Inc.

0.62%

Kinder Morgan, Inc.

0.61%

The Allstate Corp.

0.60%

Hewlett Packard Enterprise Co.

0.59%

Flex Ltd.

0.58%

Realty Income Corp.

0.57%

Delta Air Lines, Inc.

0.56%

Corteva, Inc.

0.56%

AMETEK, Inc.

0.54%

Coherent Corp.

0.54%

Baker Hughes Co.

0.54%

ONEOK, Inc.

0.54%

United Rentals, Inc.

0.53%

PHO

Ecolab, Inc.

8.49%

Roper Technologies, Inc.

7.96%

Ferguson Enterprises, Inc.

7.10%

Waters Corp.

6.76%

IDEXX Laboratories, Inc.

6.45%

Veralto Corp.

4.18%

American Water Works Co., Inc.

4.12%

Xylem, Inc.

4.07%

Agilent Technologies, Inc.

3.84%

Pentair plc

3.73%

IDEX Corp.

3.66%

Advanced Drainage Systems, Inc.

3.21%

Jacobs Solutions, Inc.

3.16%

AECOM

2.97%

Core & Main, Inc.

2.72%

Frequently asked questions about IWS and PHO

How have the IWS and PHO ETFs performed in 2026?

As of August 5, 2026, IWS is up 21.63% year-to-date (YTD), while PHO has returned 3.97%. That puts IWS better performer ahead so far this year.

Which ETF is attracting more investor money: IWS or PHO?

Year-to-date, the IWS ETF saw -$1.31B in flows, compared to -$75M for PHO.

Which ETF is more volatile: IWS or PHO?

Over the past year, IWS had a volatility of 13.47%, while PHO experienced 16.26%.

Which ETF is bigger: IWS or PHO?

As of August 5, 2026, IWS holds $15.84 B in assets under management (AUM), while PHO manages $2.08 B.

What sectors do the IWS and PHO ETFs invest in?

IWS leans toward sectors like Finance, Industrials and Technology. Meanwhile, PHO focuses on Industrials, Healthcare and Non-Energy Materials.

What are the top holdings of the IWS ETF and PHO ETF?

IWS top holdings include Warner Bros. Discovery, Inc., Phillips 66 and Digital Realty Trust, Inc.. PHO holds in its top three: Ecolab, Inc., Roper Technologies, Inc. and Ferguson Enterprises, Inc..

Which ETF is more diversified: IWS or PHO?

IWS holds 719 securities with 8.62% of its assets in the top 15. PHO has 40 securities and a top 15 weight of 72.4%.

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PHO

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February 3, 2023

PHO

IWSvsPHOETF Comparison

iShares Russell Mid-Cap Value ETF

Invesco Water Resources ETF

IWS vs PHO 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 IWS and PHO ETFs performed in 2026?

As of August 5, 2026, IWS is up 21.63% year-to-date (YTD), while PHO has returned 3.97%. That puts IWS better performer ahead so far this year.

Which ETF is attracting more investor money: IWS or PHO?

Year-to-date, the IWS ETF saw -$1.31B in flows, compared to -$75M for PHO.

Which ETF is more volatile: IWS or PHO?

Over the past year, IWS had a volatility of 13.47%, while PHO experienced 16.26%.

Which ETF is bigger: IWS or PHO?

As of August 5, 2026, IWS holds $15.84 B in assets under management (AUM), while PHO manages $2.08 B.

What sectors do the IWS and PHO ETFs invest in?

IWS leans toward sectors like Finance, Industrials and Technology. Meanwhile, PHO focuses on Industrials, Healthcare and Non-Energy Materials.

What are the top holdings of the IWS ETF and PHO ETF?

IWS top holdings include Warner Bros. Discovery, Inc., Phillips 66 and Digital Realty Trust, Inc.. PHO holds in its top three: Ecolab, Inc., Roper Technologies, Inc. and Ferguson Enterprises, Inc..

Which ETF is more diversified: IWS or PHO?

IWS holds 719 securities with 8.62% of its assets in the top 15. PHO has 40 securities and a top 15 weight of 72.4%.

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