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. Both ETFs have the same top 3 sector exposures: 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 -1.7% year-to-date (YTD) with -$90M in YTD flows. PHO performs worse with -3.02% YTD performance, and -$105M 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 09/09/2026
| 1M | 3M | YTD | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|---|---|
| Perf. | FIW PHO | -5.75%-7.11% | +0.36%+3.63% | -1.70%-3.02% | -3.99%-3.49% | +26.01%+25.66% | +21.58%+19.34% |
| Flows | FIW PHO | -$60M-$30M | -$43M-$90M | -$90M-$105M | -$45M-$206M | +$59M-$333M | +$212M-$416M |
Volatility and drawdown
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | FIW PHO | +17.81%+17.65% | +16.12%+15.97% | +16.85%+16.66% | +18.78%+18.45% |
| Max drawdown | FIW PHO | -6.29%-7.22% | -13.79%-13.83% | -18.25%-19.26% | -28.49%-28.58% |
| Max drawdown duration | FIW PHO | 31d32d | 230d324d | 238d250d | 710d715d |
Trading data
FIW | PHO | |
Last sale 9/11/2026 at 1:30 PM | $105.55 | $68.49 |
| Previous close 09/10/2026 | $104.90 | $68.07 |
| Consolidated volume 09/10/2026 | ||
| Average volume 30 days | ||
| Average discount or premium 30 days | ||
| Average Bid/Ask spread 30 days |
Replication quality
Data as of August 31, 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 9/11/2026 at 1:30 PM
Live
Closed
FIW | PHO | |
|---|---|---|
| Last price | $105.55 | $68.49 |
| 1D performance | +0.62% | +0.62% |
| AuM | $1.77 B | $1.91 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
92.05%
Other
7.95%
PHO
USA
95.25%
Other
4.75%
Sectors
FIW
Industrials
48.61%
Healthcare
13.91%
Non-Energy Materi.
13.7%
Utilities
11.3%
Consumer Non-Cycl.
7.47%
Other
5.01%
PHO
Industrials
45.27%
Healthcare
17.07%
Non-Energy Materi.
15.54%
Technology
14.66%
Utilities
7.47%
Other
0%
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Diversification
FIW
Total weight of top 15 holdings out of 15
60.12%
PHO
Total weight of top 15 holdings out of 15
73.01%
Top 15 holdings
Data as of July 31, 2026
FIW
Agilent Technologies, Inc.
5.29%
Waters Corp.
5.21%
Roper Technologies, Inc.
4.82%
Veralto Corp.
4.19%
American Water Works Co., Inc.
4.14%
IDEX Corp.
4.01%
Jacobs Solutions, Inc.
3.86%
Mueller Industries, Inc.
3.78%
Ferguson Enterprises, Inc.
3.77%
Ecolab, Inc.
3.75%
Masco Corp.
3.68%
Xylem, Inc.
3.60%
Watts Water Technologies, Inc.
3.47%
IDEXX Laboratories, Inc.
3.41%
Tetra Tech, Inc.
3.14%
PHO
Roper Technologies, Inc.
9.37%
Ecolab, Inc.
8.29%
Waters Corp.
6.69%
Ferguson Enterprises, Inc.
6.57%
IDEXX Laboratories, Inc.
6.51%
Veralto Corp.
4.49%
American Water Works Co., Inc.
4.19%
Xylem, Inc.
4.17%
Agilent Technologies, Inc.
3.87%
IDEX Corp.
3.61%
Jacobs Solutions, Inc.
3.33%
Pentair plc
3.17%
AECOM
3.01%
Trimble, Inc.
2.94%
Advanced Drainage Systems, Inc.
2.80%
Frequently asked questions about FIW and PHO
How have the FIW and PHO ETFs performed in 2026?
As of September 9, 2026, FIW is down -1.7% year-to-date (YTD), while PHO has lost -3.02%. 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 -$90M in flows, compared to -$105M for PHO.
Which ETF is more volatile: FIW or PHO?
Over the past year, FIW had a volatility of 16.12%, while PHO experienced 15.97%.
Which ETF is bigger: FIW or PHO?
As of September 9, 2026, FIW holds $1.77 B in assets under management (AUM), while PHO manages $1.91 B.
What sectors do the FIW and PHO ETFs invest in?
FIW leans toward sectors like Industrials, Healthcare and Non-Energy Materials. 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 Agilent Technologies, Inc., Waters Corp. and Roper Technologies, Inc.. PHO holds in its top three: Roper Technologies, Inc., Ecolab, Inc. and Waters Corp..
Which ETF is more diversified: FIW or PHO?
FIW holds 36 securities with 60.12% of its assets in the top 15. PHO has 40 securities and a top 15 weight of 73.01%.
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