PIOvsCGWETF Comparison
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Invesco Global Water ETF (PIO) and Invesco S&P Global Water Index ETF (CGW) belong to the same industry segment: Natural Resources. PIO's top 3 sector exposures are Industrials, Utilities and Non-Energy Materials. In contrast, CGW's top sector exposures are Utilities, Industrials and Non-Energy Materials. PIO is more expensive with a Total Expense Ratio (TER) of 0.75%, versus 0.59% for CGW. PIO is up 1.29% year-to-date (YTD) with -$3M in YTD flows. CGW performs better with 2.94% YTD performance, and +$41M in YTD flows. Run a side-by-side ETF comparison of PIO and CGW 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 CGW performance and flow charts
Performance
Cumulative Flows
Historic performance and flows
Data as of 07/27/2026
| 1M | 3M | YTD | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|---|---|
| Perf. | PIO CGW | -1.35%-0.79% | -3.68%-1.63% | +1.29%+2.94% | +0.70%+6.48% | +23.89%+29.88% | +13.23%+25.66% |
| Flows | PIO CGW | -+$10M | -+$15M | -$3M+$41M | -$3M+$26M | -$59M-$156M | -$40M-$111M |
Volatility and drawdown
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | PIO CGW | +15.85%+14.40% | +15.36%+13.15% | +15.29%+13.76% | +16.48%+15.71% |
| Max drawdown | PIO CGW | -7.50%-6.56% | -13.21%-10.52% | -17.07%-15.71% | -34.20%-32.65% |
| Max drawdown duration | PIO CGW | 82d79d | 151d151d | 227d135d | 819d862d |
Trading data
PIO | CGW | |
Last sale 7/28/2026 at 1:30 PM | $44.88 | $65.60 |
| Previous close 07/27/2026 | $44.38 | $64.65 |
| Consolidated volume 07/27/2026 | ||
| 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 | CGW | |
|---|---|---|
| Tracking error | ||
| Tracking difference | ||
| 1 year cumulative return difference | ||
| Best | ||
| Worst | ||
| Daily return difference | ||
| Average | ||
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Main metrics
Last update 7/28/2026 at 1:30 PM
Live
Closed
PIO | CGW | |
|---|---|---|
| Last price | $44.88 | $65.60 |
| 1D performance | +1.12% | +1.47% |
| AuM | $270.70 M | $1.05 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%
CGW
USA
59.15%
United Kingdom
11.29%
Brazil
10.57%
Other
18.99%
Sectors
PIO
Industrials
42.25%
Utilities
17.57%
Non-Energy Materi.
16.28%
Healthcare
10.36%
Technology
8.07%
Other
5.47%
CGW
Utilities
43.48%
Industrials
36.56%
Non-Energy Materi.
16.18%
Other
3.78%
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Diversification
PIO
Total weight of top 15 holdings out of 15
73.12%
CGW
Total weight of top 15 holdings out of 15
65.66%
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%
CGW
American Water Works Co., Inc.
7.85%
Xylem, Inc.
7.34%
Companhia de Saneamento Basico do Estado de Sao Paulo SABESP
7.32%
Essential Utilities, Inc.
5.80%
Veralto Corp.
5.33%
Ecolab, Inc.
4.18%
United Utilities Group Plc
4.16%
Severn Trent Plc
3.95%
Advanced Drainage Systems, Inc.
3.53%
Geberit AG
3.38%
Watts Water Technologies, Inc.
3.15%
American States Water Co.
2.63%
Zurn Elkay Water Solutions Corp.
2.41%
California Water Service Group
2.40%
Core & Main, Inc.
2.22%
Frequently asked questions about PIO and CGW
How have the PIO and CGW ETFs performed in 2026?
As of July 27, 2026, PIO is up 1.29% year-to-date (YTD), while CGW has returned 2.94%. That puts CGW better performer ahead so far this year.
Which ETF is attracting more investor money: PIO or CGW?
Year-to-date, the PIO ETF saw -$3M in flows, compared to +$41M for CGW.
Which ETF is more volatile: PIO or CGW?
Over the past year, PIO had a volatility of 15.36%, while CGW experienced 13.15%.
Which ETF is bigger: PIO or CGW?
As of July 27, 2026, PIO holds $270.70 M in assets under management (AUM), while CGW manages $1.05 B.
What sectors do the PIO and CGW ETFs invest in?
PIO leans toward sectors like Industrials, Utilities and Non-Energy Materials. Meanwhile, CGW focuses on Utilities, Industrials and Non-Energy Materials.
What are the top holdings of the PIO ETF and CGW ETF?
PIO top holdings include Ecolab, Inc., Pentair plc and Roper Technologies, Inc.. CGW holds in its top three: American Water Works Co., Inc., Xylem, Inc. and Companhia de Saneamento Basico do Estado de Sao Paulo SABESP.
Which ETF is more diversified: PIO or CGW?
PIO holds 40 securities with 73.12% of its assets in the top 15. CGW has 67 securities and a top 15 weight of 65.66%.
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Latest news about PIO & CGW
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