What if you'd held YCS?
A $1,000 investment in ProShares UltraShort Yen New (YCS) at the month-end close of 2008-11 would be worth $2,906 at the close of 2026-09 — +190.6% total return, dividends reinvested. The same $1,000 in the S&P 500, dividends reinvested, would be worth $12,032.
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 | $975 | -2.5% |
| 2010 | $717 | -26.5% |
| 2011 | $625 | -12.9% |
| 2012 | $774 | +23.9% |
| 2013 | $1,082 | +39.7% |
| 2014 | $1,362 | +25.9% |
| 2015 | $1,340 | -1.6% |
| 2016 | $1,224 | -8.7% |
| 2017 | $1,144 | -6.5% |
| 2018 | $1,127 | -1.5% |
| 2019 | $1,165 | +3.4% |
| 2020 | $1,034 | -11.2% |
| 2021 | $1,266 | +22.4% |
| 2022 | $1,634 | +29.1% |
| 2023 | $2,103 | +28.7% |
| 2024 | $2,848 | +35.4% |
| 2025 | $3,106 | +9.0% |
| 2026 | $3,224 | +3.8% |
Best and worst month-end to buy
The best single month-end close to have bought YCS was 2012-01 ($10.03): $1,000 then is $5,268 today. The worst was 2026-06 ($56.62): $1,000 then is $933.
FAQ
What would $1,000 in YCS be worth today?
A $1,000 investment in ProShares UltraShort Yen New (YCS) at the start of 2008 would be worth about $2,906 today, a total return of +190.6%. Dividends are reinvested in these figures.
What were the best and worst years for YCS?
ProShares UltraShort Yen New (YCS)'s strongest calendar year since 2008 was 2013, a +39.7% return — $1,000 held through that year became about $1,397 by year-end. Its weakest year was 2010, at -26.5%.
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 YCS have grown?
Investing $100 at the end of every month since 2008-11 would have grown to about $59,976 on $21,500 invested.
Did YCS 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 $12,032. YCS trailed the S&P 500 by +75.8% 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 Yen New (YCS) historical total-return data from 2008-11 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.