PIOvsPHOETF Comparison
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Invesco Global Water ETF (PIO) and Invesco Water Resources ETF (PHO) belong to the same industry segment: Natural Resources. PIO's top 3 sector exposures are Industrials, Utilities and Non-Energy Materials. In contrast, PHO's top sector exposures are Industrials, Healthcare and Non-Energy Materials. PIO is more expensive with a Total Expense Ratio (TER) of 0.75%, versus 0.59% for PHO. PIO is up 2.46% year-to-date (YTD) with -$3M in YTD flows. PHO performs worse with 1.95% YTD performance, and -$75M in YTD flows. Run a side-by-side ETF comparison of PIO 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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PIO vs PHO performance and flow charts
Performance
Cumulative Flows
Historic performance and flows
Data as of 07/28/2026
| 1M | 3M | YTD | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|---|---|
| Perf. | PIO PHO | -0.21%+4.23% | -0.88%+4.60% | +2.46%+1.95% | +1.87%+1.45% | +24.55%+25.48% | +14.48%+31.08% |
| Flows | PIO PHO | --$16M | --$120M | -$3M-$75M | -$3M-$177M | -$55M-$300M | -$40M-$207M |
Volatility and drawdown
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | PIO PHO | +15.67%+17.71% | +15.37%+15.99% | +15.30%+16.53% | +16.49%+18.35% |
| Max drawdown | PIO PHO | -7.50%-6.94% | -13.21%-13.83% | -17.07%-19.26% | -34.20%-28.58% |
| Max drawdown duration | PIO PHO | 83d49d | 152d280d | 227d250d | 819d715d |
Trading data
PIO | PHO | |
Last sale 7/29/2026 at 1:42 PM | $44.47 | $71.08 |
| Previous close 07/28/2026 | $44.88 | $71.49 |
| Consolidated volume 07/28/2026 | ||
| 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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PIO | 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 7/29/2026 at 1:42 PM
Live
Closed
PIO | PHO | |
|---|---|---|
| Last price | $44.47 | $71.08 |
| 1D performance | -0.91% | -0.57% |
| AuM | $273.83 M | $2.04 B |
| E/R | 0.75% | 0.59% |
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Exposure
Countries
PIO
USA
40.68%
United Kingdom
15.22%
Japan
12.32%
Brazil
10.22%
Switzerland
8.09%
Other
13.47%
PHO
USA
94.59%
Other
5.41%
Sectors
PIO
Industrials
42.25%
Utilities
17.57%
Non-Energy Materi.
16.28%
Healthcare
10.36%
Technology
8.07%
Other
5.47%
PHO
Industrials
46.17%
Healthcare
17.05%
Non-Energy Materi.
16.79%
Technology
12.53%
Utilities
7.45%
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Diversification
PIO
Total weight of top 15 holdings out of 15
73.12%
PHO
Total weight of top 15 holdings out of 15
72.4%
Top 15 holdings
Data as of June 30, 2026
PIO
Ecolab, Inc.
8.60%
Pentair plc
8.37%
Roper Technologies, Inc.
8.07%
Ebara Corp.
7.32%
Companhia de Saneamento Basico do Estado de Sao Paulo SABESP
6.82%
Ferguson Enterprises, Inc.
4.10%
Geberit AG
3.96%
Veolia Environnement SA
3.94%
IDEXX Laboratories, Inc.
3.80%
Waters Corp.
3.79%
Companhia de Saneamento de Minas Gerais
3.40%
Xylem, Inc.
2.88%
American Water Works Co., Inc.
2.82%
Agilent Technologies, Inc.
2.78%
Halma Plc
2.46%
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 PIO and PHO
How have the PIO and PHO ETFs performed in 2026?
As of July 28, 2026, PIO is up 2.46% year-to-date (YTD), while PHO has returned 1.95%. That puts PIO better performer ahead so far this year.
Which ETF is attracting more investor money: PIO or PHO?
Year-to-date, the PIO ETF saw -$3M in flows, compared to -$75M for PHO.
Which ETF is more volatile: PIO or PHO?
Over the past year, PIO had a volatility of 15.37%, while PHO experienced 15.99%.
Which ETF is bigger: PIO or PHO?
As of July 28, 2026, PIO holds $273.83 M in assets under management (AUM), while PHO manages $2.04 B.
What sectors do the PIO and PHO ETFs invest in?
PIO leans toward sectors like Industrials, Utilities and Non-Energy Materials. Meanwhile, PHO focuses on Industrials, Healthcare and Non-Energy Materials.
What are the top holdings of the PIO ETF and PHO ETF?
PIO top holdings include Ecolab, Inc., Pentair plc and Roper Technologies, Inc.. PHO holds in its top three: Ecolab, Inc., Roper Technologies, Inc. and Ferguson Enterprises, Inc..
Which ETF is more diversified: PIO or PHO?
PIO holds 40 securities with 73.12% of its assets in the top 15. PHO has 40 securities and a top 15 weight of 72.4%.
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Latest news about PIO & PHO
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