What if you'd held PIO?
A $1,000 investment in Invesco Global Water ETF (PIO) at the month-end close of 2007-06 would be worth $2,217 at the close of 2026-09 — +121.7% total return, dividends reinvested. The same $1,000 in the S&P 500, dividends reinvested, would be worth $7,398.
Your scenario
Result
If you'd bought $1,000 at the start of each year
Value of $1,000 invested on January 1 of each year, held to 2026-09, dividends included.
Every year, $1,000 from 2007
| Year | Value of $1,000 | Year return |
|---|---|---|
| 2007 | $1,000 | — |
| 2008 | $542 | -45.8% |
| 2009 | $754 | +39.1% |
| 2010 | $839 | +11.2% |
| 2011 | $663 | -20.9% |
| 2012 | $781 | +17.8% |
| 2013 | $1,019 | +30.5% |
| 2014 | $1,026 | +0.7% |
| 2015 | $950 | -7.5% |
| 2016 | $957 | +0.8% |
| 2017 | $1,211 | +26.5% |
| 2018 | $1,094 | -9.7% |
| 2019 | $1,483 | +35.6% |
| 2020 | $1,694 | +14.3% |
| 2021 | $2,134 | +25.9% |
| 2022 | $1,621 | -24.0% |
| 2023 | $1,980 | +22.2% |
| 2024 | $1,971 | -0.4% |
| 2025 | $2,252 | +14.2% |
| 2026 | $2,275 | +1.0% |
Best and worst month-end to buy
The best single month-end close to have bought PIO was 2009-02 ($8.24): $1,000 then is $5,370 today. The worst was 2026-02 ($47.93): $1,000 then is $923.
FAQ
What would $1,000 in PIO be worth today?
A $1,000 investment in Invesco Global Water ETF (PIO) at the start of 2007 would be worth about $2,217 today, a total return of +121.7%. Dividends are reinvested in these figures.
What were the best and worst years for PIO?
Invesco Global Water ETF (PIO)'s strongest calendar year since 2007 was 2009, a +39.1% return — $1,000 held through that year became about $1,391 by year-end. Its weakest year was 2008, at -45.8%.
Does the calculator include dividends and splits?
Yes where available. Prices are adjusted for both stock splits and reinvested dividends (total return), the same measure brokerages use.
How much would $100 per month in PIO have grown?
Investing $100 at the end of every month since 2007-06 would have grown to about $48,965 on $23,200 invested.
Did PIO beat the S&P 500?
Over the same period, $1,000 in the S&P 500 with dividends reinvested (the S&P 500 Total Return index) would be worth $7,398. PIO trailed the S&P 500 by +70.0% in total return.
Is this investment advice?
No. Wall Street Regrets is an entertainment and education tool. Every number is a historical calculation, not a prediction, and past performance never guarantees future results.
Methodology
Invesco Global Water ETF (PIO) historical total-return data from 2007-06 to 2026-09, reduced to month-end closes for the tables above.
Returns use adjusted close prices — adjusted for stock splits and reinvested dividends, the same convention used by major brokerages. End-of-day and live prices come from EODHD; parts of the deep historical series are carried over from Yahoo Finance data. A "year" scenario invests $1,000 at the prior December's month-end close and values it at the latest available month-end close. Non-USD amounts are converted at historical month-end exchange rates (EODHD): to USD on the buy date and back to your currency at the latest rate, so the return reflects the currency move as well as the asset.
Month-end resolution means intra-month extremes are not captured in tables; the calculator uses exact trading-day closes where daily data is available. Figures ignore taxes, fees, and the currency effects of non-USD listings. History is not a forecast. Wall Street Regrets is entertainment, not investment advice.
What if you'd held…
Data: adjusted close prices via EODHD and Yahoo Finance. As of 2026-09-04. Not financial advice.