What if you'd held PHIO?
A $1,000 investment in Phio Pharmaceuticals Corp. (PHIO) at the month-end close of 2012-05 would be worth $0.0008067 at the close of 2026-08 — -100.0% total return, dividends reinvested. The same $1,000 in the S&P 500 would be worth $5,882.
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 2026-08, dividends included.
Every year, $1,000 from 2012
| Year | Value of $1,000 | Year return |
|---|---|---|
| 2012 | $1,000 | — |
| 2013 | $1,289 | +28.9% |
| 2014 | $711 | -44.8% |
| 2015 | $170 | -76.1% |
| 2016 | $31.78 | -81.3% |
| 2017 | $24.71 | -22.2% |
| 2018 | $1.47 | -94.1% |
| 2019 | $0.76 | -48.2% |
| 2020 | $0.22 | -71.4% |
| 2021 | $0.08 | -62.8% |
| 2022 | $0.03 | -62.8% |
| 2023 | $0.005118 | -83.0% |
| 2024 | $0.001347 | -73.7% |
| 2025 | $0.0007856 | -41.7% |
| 2026 | $0.0008605 | +9.5% |
Best and worst month-end to buy
The best single month-end close to have bought PHIO was 2026-01 ($1.01): $1,000 then is $1,139 today. The worst was 2013-03 ($5.08M): $1,000 then is $0.0002264.
FAQ
What would $1,000 in PHIO be worth today?
A $1,000 investment in Phio Pharmaceuticals Corp. (PHIO) at the start of 2012 would be worth about $0.0008067 today, a total return of -100.0%. Dividends are reinvested in these figures.
What were the best and worst years for PHIO?
Phio Pharmaceuticals Corp. (PHIO)'s strongest calendar year since 2012 was 2013, a +28.9% return — $1,000 held through that year became about $1,289 by year-end. Its weakest year was 2018, at -94.1%.
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 PHIO have grown?
Investing $100 at the end of every month since 2012-05 would have grown to about $2,105 on $17,200 invested.
Did PHIO beat the S&P 500?
Over the same period, $1,000 in the S&P 500 index would be worth $5,882. PHIO 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
Phio Pharmaceuticals Corp. (PHIO) historical total-return data from 2012-05 to 2026-08, reduced to month-end closes for the tables above.
Returns use adjusted close prices from Yahoo Finance historical data — adjusted for stock splits and reinvested dividends — the same convention used by major brokerages. 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 (Yahoo Finance): 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 Yahoo Finance. As of 2026-08. Not financial advice.