What if you'd held ALT?
A $1,000 investment in Altimmune, Inc. (ALT) at the month-end close of 2017-05 would be worth $24.47 at the close of 2026-08 — -97.6% total return, dividends reinvested. The same $1,000 in the S&P 500 would be worth $3,196.
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 2017
| Year | Value of $1,000 | Year return |
|---|---|---|
| 2017 | $1,000 | — |
| 2018 | $34.51 | -96.5% |
| 2019 | $31.66 | -8.3% |
| 2020 | $189 | +496.8% |
| 2021 | $153 | -18.8% |
| 2022 | $276 | +79.6% |
| 2023 | $188 | -31.6% |
| 2024 | $121 | -35.9% |
| 2025 | $60.47 | -49.9% |
| 2026 | $52.26 | -13.6% |
Best and worst month-end to buy
The best single month-end close to have bought ALT was 2020-01 ($1.72): $1,000 then is $1,814 today. The worst was 2017-05 ($128): $1,000 then is $24.47.
FAQ
What would $1,000 in ALT be worth today?
A $1,000 investment in Altimmune, Inc. (ALT) at the start of 2017 would be worth about $24.47 today, a total return of -97.6%. Dividends are reinvested in these figures.
What were the best and worst years for ALT?
Altimmune, Inc. (ALT)'s strongest calendar year since 2017 was 2020, a +496.8% return — $1,000 held through that year became about $5,968 by year-end. Its weakest year was 2018, at -96.5%.
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 ALT have grown?
Investing $100 at the end of every month since 2017-05 would have grown to about $6,631 on $11,200 invested.
Did ALT beat the S&P 500?
Over the same period, $1,000 in the S&P 500 index would be worth $3,196. ALT trailed the S&P 500 by +99.2% 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
Altimmune, Inc. (ALT) historical total-return data from 2017-05 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.