FIWvsPHOETF Comparison
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First Trust ISE Water Index Fund ETF (FIW) and Invesco Water Resources ETF (PHO) belong to the same industry segment: Natural Resources. FIW's top 3 sector exposures are Industrials, Non-Energy Materials and Healthcare. In contrast, PHO's top sector exposures are Industrials, Healthcare and Non-Energy Materials. FIW is less expensive with a Total Expense Ratio (TER) of 0.51%, versus 0.59% for PHO. FIW is down -0.62% year-to-date (YTD) with -$42M in YTD flows. PHO performs worse with -2.38% YTD performance, and -$72M in YTD flows. Run a side-by-side ETF comparison of FIW 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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FIW vs PHO performance and flow charts
Performance
Cumulative Flows
Historic performance and flows
Data as of 07/24/2026
| 1M | 3M | YTD | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|---|---|
| Perf. | FIW PHO | +0.36%+0.84% | -0.47%-1.14% | -0.62%-2.38% | -1.09%-2.82% | +20.01%+19.55% | +29.21%+26.02% |
| Flows | FIW PHO | +$11M-$18M | -$4M-$67M | -$42M-$72M | -$8M-$174M | +$117M-$296M | +$408M-$201M |
Volatility and drawdown
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | FIW PHO | +17.01%+16.50% | +16.12%+15.63% | +16.66%+16.41% | +18.68%+18.29% |
| Max drawdown | FIW PHO | -8.05%-7.56% | -13.79%-13.83% | -18.25%-19.26% | -28.49%-28.58% |
| Max drawdown duration | FIW PHO | 58d60d | 183d276d | 238d250d | 710d715d |
Trading data
FIW | PHO | |
Last sale 7/27/2026 at 4:25 PM | $108.03 | $69.16 |
| Previous close 07/24/2026 | $107.63 | $68.43 |
| Consolidated volume 07/24/2026 | ||
| Average volume 30 days | ||
| Average discount or premium 30 days | ||
| Average Bid/Ask spread 30 days |
Replication quality
Data as of June 30, 2026
1-year trailing difference
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FIW | PHO | |
|---|---|---|
| Tracking error | ||
| Tracking difference | ||
| 1 year cumulative return difference | ||
| Best | ||
| Worst | ||
| Daily return difference | ||
| Average | ||
| Worst | ||
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Main metrics
Last update 7/27/2026 at 4:25 PM
Live
Closed
FIW | PHO | |
|---|---|---|
| Last price | $108.03 | $69.16 |
| 1D performance | +0.37% | +1.07% |
| AuM | $1.83 B | $1.96 B |
| E/R | 0.51% | 0.59% |
Characteristics
FIW | PHO | |
|---|---|---|
| Management strategy | Passive | Passive |
| Provider | First Trust | Invesco |
| Benchmark | ISE Clean Edge Water Index | NASDAQ OMX US Water Index |
| N° of holdings | 36 | 40 |
| Asset class | Equities | Equities |
| Trailing 12m distribution yield | Join | Join |
| Inception date | May 8, 2007 | December 6, 2005 |
| ESG | Yes | Yes |
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Exposure
Countries
FIW
USA
91.45%
Other
8.55%
PHO
USA
94.59%
Other
5.41%
Sectors
FIW
Industrials
48.44%
Non-Energy Materi.
14.34%
Healthcare
12.99%
Utilities
11.32%
Consumer Non-Cycl.
8.53%
Other
4.38%
PHO
Industrials
46.17%
Healthcare
17.05%
Non-Energy Materi.
16.79%
Technology
12.53%
Utilities
7.45%
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Diversification
FIW
Total weight of top 15 holdings out of 15
58.3%
PHO
Total weight of top 15 holdings out of 15
72.4%
Top 15 holdings
Data as of June 30, 2026
FIW
Waters Corp.
4.96%
Agilent Technologies, Inc.
4.60%
Roper Technologies, Inc.
4.25%
Masco Corp.
4.18%
American Water Works Co., Inc.
4.06%
IDEX Corp.
3.94%
Veralto Corp.
3.88%
Xylem, Inc.
3.79%
Ecolab, Inc.
3.78%
Ferguson Enterprises, Inc.
3.68%
Watts Water Technologies, Inc.
3.64%
Mueller Industries, Inc.
3.57%
IDEXX Laboratories, Inc.
3.43%
Jacobs Solutions, Inc.
3.31%
Advanced Drainage Systems, Inc.
3.23%
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 FIW and PHO
How have the FIW and PHO ETFs performed in 2026?
As of July 24, 2026, FIW is down -0.62% year-to-date (YTD), while PHO has lost -2.38%. That puts FIW better performer ahead so far this year.
Which ETF is attracting more investor money: FIW or PHO?
Year-to-date, the FIW ETF saw -$42M in flows, compared to -$72M for PHO.
Which ETF is more volatile: FIW or PHO?
Over the past year, FIW had a volatility of 16.12%, while PHO experienced 15.63%.
Which ETF is bigger: FIW or PHO?
As of July 24, 2026, FIW holds $1.83 B in assets under management (AUM), while PHO manages $1.96 B.
What sectors do the FIW and PHO ETFs invest in?
FIW leans toward sectors like Industrials, Non-Energy Materials and Healthcare. Meanwhile, PHO focuses on Industrials, Healthcare and Non-Energy Materials.
What are the top holdings of the FIW ETF and PHO ETF?
FIW top holdings include Waters Corp., Agilent Technologies, Inc. and Roper Technologies, Inc.. PHO holds in its top three: Ecolab, Inc., Roper Technologies, Inc. and Ferguson Enterprises, Inc..
Which ETF is more diversified: FIW or PHO?
FIW holds 36 securities with 58.3% of its assets in the top 15. PHO has 40 securities and a top 15 weight of 72.4%.
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