What if you'd held ALLO?
A $1,000 investment in Allogene Therapeutics, Inc. (ALLO) at the month-end close of 2018-10 would be worth $92.88 at the close of 2026-08 — -90.7% total return, dividends reinvested. The same $1,000 in the S&P 500 would be worth $2,842.
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 2018
| Year | Value of $1,000 | Year return |
|---|---|---|
| 2018 | $1,000 | — |
| 2019 | $965 | -3.5% |
| 2020 | $937 | -2.8% |
| 2021 | $554 | -40.9% |
| 2022 | $234 | -57.8% |
| 2023 | $119 | -49.0% |
| 2024 | $79.09 | -33.6% |
| 2025 | $50.87 | -35.7% |
| 2026 | $82.81 | +62.8% |
Best and worst month-end to buy
The best single month-end close to have bought ALLO was 2025-06 ($1.13): $1,000 then is $1,973 today. The worst was 2020-05 ($48.16): $1,000 then is $46.30.
FAQ
What would $1,000 in ALLO be worth today?
A $1,000 investment in Allogene Therapeutics, Inc. (ALLO) at the start of 2018 would be worth about $92.88 today, a total return of -90.7%. Dividends are reinvested in these figures.
What were the best and worst years for ALLO?
Allogene Therapeutics, Inc. (ALLO)'s strongest calendar year since 2018 was 2026, a +62.8% return — $1,000 held through that year became about $1,628 by year-end. Its weakest year was 2022, at -57.8%.
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 ALLO have grown?
Investing $100 at the end of every month since 2018-10 would have grown to about $4,982 on $9,500 invested.
Did ALLO beat the S&P 500?
Over the same period, $1,000 in the S&P 500 index would be worth $2,842. ALLO trailed the S&P 500 by +96.7% 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
Allogene Therapeutics, Inc. (ALLO) historical total-return data from 2018-10 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.