What if you'd held ZSL?
A $1,000 investment in ProShares UltraShort Silver (ZSL) at the month-end close of 2008-12 would be worth $0.08 at the close of 2026-09 — -100.0% total return, dividends reinvested. The same $1,000 in the S&P 500, dividends reinvested, would be worth $11,905.
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 2008
| Year | Value of $1,000 | Year return |
|---|---|---|
| 2008 | $1,000 | — |
| 2009 | $274 | -72.6% |
| 2010 | $56.08 | -79.5% |
| 2011 | $22.66 | -59.6% |
| 2012 | $14.30 | -36.9% |
| 2013 | $25.75 | +80.1% |
| 2014 | $34.09 | +32.4% |
| 2015 | $36.86 | +8.1% |
| 2016 | $22.14 | -40.0% |
| 2017 | $17.93 | -19.0% |
| 2018 | $21.19 | +18.2% |
| 2019 | $15.31 | -27.8% |
| 2020 | $3.91 | -74.4% |
| 2021 | $3.83 | -2.0% |
| 2022 | $2.76 | -28.1% |
| 2023 | $2.60 | -5.5% |
| 2024 | $1.50 | -42.4% |
| 2025 | $0.19 | -87.3% |
| 2026 | $0.08 | -56.3% |
Best and worst month-end to buy
The best single month-end close to have bought ZSL was 2026-02 ($15.92): $1,000 then is $1,467 today. The worst was 2008-12 ($280,160): $1,000 then is $0.08.
FAQ
What would $1,000 in ZSL be worth today?
A $1,000 investment in ProShares UltraShort Silver (ZSL) at the start of 2008 would be worth about $0.08 today, a total return of -100.0%. Dividends are reinvested in these figures.
What were the best and worst years for ZSL?
ProShares UltraShort Silver (ZSL)'s strongest calendar year since 2008 was 2013, a +80.1% return — $1,000 held through that year became about $1,801 by year-end. Its weakest year was 2025, at -87.3%.
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 ZSL have grown?
Investing $100 at the end of every month since 2008-12 would have grown to about $1,293 on $21,400 invested.
Did ZSL 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 $11,905. ZSL trailed the S&P 500 by +100.0% 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
ProShares UltraShort Silver (ZSL) historical total-return data from 2008-12 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.