What if you'd held AMBA?
A $1,000 investment in Ambarella, Inc. (AMBA) at the month-end close of 2012-10 would be worth $8,711 at the close of 2026-09 — +771.1% total return, dividends reinvested. The same $1,000 in the S&P 500, dividends reinvested, would be worth $7,010.
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 2012
| Year | Value of $1,000 | Year return |
|---|---|---|
| 2012 | $1,000 | — |
| 2013 | $3,039 | +203.9% |
| 2014 | $4,549 | +49.7% |
| 2015 | $4,999 | +9.9% |
| 2016 | $4,855 | -2.9% |
| 2017 | $5,269 | +8.5% |
| 2018 | $3,137 | -40.5% |
| 2019 | $5,431 | +73.1% |
| 2020 | $8,235 | +51.6% |
| 2021 | $18,196 | +121.0% |
| 2022 | $7,375 | -59.5% |
| 2023 | $5,497 | -25.5% |
| 2024 | $6,524 | +18.7% |
| 2025 | $6,353 | -2.6% |
| 2026 | $5,640 | -11.2% |
Best and worst month-end to buy
The best single month-end close to have bought AMBA was 2012-10 ($7.22): $1,000 then is $8,711 today. The worst was 2021-12 ($203): $1,000 then is $310.
FAQ
What would $1,000 in AMBA be worth today?
A $1,000 investment in Ambarella, Inc. (AMBA) at the start of 2012 would be worth about $8,711 today, a total return of +771.1%. Dividends are reinvested in these figures.
What were the best and worst years for AMBA?
Ambarella, Inc. (AMBA)'s strongest calendar year since 2012 was 2013, a +203.9% return — $1,000 held through that year became about $3,039 by year-end. Its weakest year was 2022, at -59.5%.
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 AMBA have grown?
Investing $100 at the end of every month since 2012-10 would have grown to about $23,920 on $16,800 invested.
Did AMBA 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 $7,010. AMBA beat the S&P 500 by +24.3% 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
Ambarella, Inc. (AMBA) historical total-return data from 2012-10 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.