What if you'd held ACMR?
A $1,000 investment in ACM Research, Inc. (ACMR) at the month-end close of 2017-11 would be worth $34,484 at the close of 2026-08 — +3348.4% total return, dividends reinvested. The same $1,000 in the S&P 500 would be worth $2,911.
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 | $2,074 | +107.4% |
| 2019 | $3,514 | +69.4% |
| 2020 | $15,474 | +340.3% |
| 2021 | $16,240 | +4.9% |
| 2022 | $4,406 | -72.9% |
| 2023 | $11,166 | +153.4% |
| 2024 | $8,629 | -22.7% |
| 2025 | $22,543 | +161.3% |
| 2026 | $44,337 | +96.7% |
Best and worst month-end to buy
The best single month-end close to have bought ACMR was 2017-12 ($1.75): $1,000 then is $44,337 today. The worst was 2026-06 ($127): $1,000 then is $611.
FAQ
What would $1,000 in ACMR be worth today?
A $1,000 investment in ACM Research, Inc. (ACMR) at the start of 2017 would be worth about $34,484 today, a total return of +3348.4%. Dividends are reinvested in these figures.
What were the best and worst years for ACMR?
ACM Research, Inc. (ACMR)'s strongest calendar year since 2017 was 2020, a +340.3% return — $1,000 held through that year became about $4,403 by year-end. Its weakest year was 2022, at -72.9%.
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 ACMR have grown?
Investing $100 at the end of every month since 2017-11 would have grown to about $87,021 on $10,600 invested.
Did ACMR beat the S&P 500?
Over the same period, $1,000 in the S&P 500 index would be worth $2,911. ACMR beat the S&P 500 by +1084.5% 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
ACM Research, Inc. (ACMR) historical total-return data from 2017-11 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.