What if you'd held ATEN?
A $1,000 investment in A10 Networks, Inc. (ATEN) at the month-end close of 2014-03 would be worth $1,755 at the close of 2026-09 — +75.5% total return, dividends reinvested. The same $1,000 in the S&P 500, dividends reinvested, would be worth $5,125.
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 2014
| Year | Value of $1,000 | Year return |
|---|---|---|
| 2014 | $1,000 | — |
| 2015 | $1,505 | +50.5% |
| 2016 | $1,906 | +26.7% |
| 2017 | $1,771 | -7.1% |
| 2018 | $1,431 | -19.2% |
| 2019 | $1,576 | +10.2% |
| 2020 | $2,261 | +43.4% |
| 2021 | $3,815 | +68.7% |
| 2022 | $3,879 | +1.7% |
| 2023 | $3,126 | -19.4% |
| 2024 | $4,441 | +42.1% |
| 2025 | $4,325 | -2.6% |
| 2026 | $6,057 | +40.0% |
Best and worst month-end to buy
The best single month-end close to have bought ATEN was 2014-11 ($3.80): $1,000 then is $6,471 today. The worst was 2026-06 ($37.28): $1,000 then is $660.
FAQ
What would $1,000 in ATEN be worth today?
A $1,000 investment in A10 Networks, Inc. (ATEN) at the start of 2014 would be worth about $1,755 today, a total return of +75.5%. Dividends are reinvested in these figures.
What were the best and worst years for ATEN?
A10 Networks, Inc. (ATEN)'s strongest calendar year since 2014 was 2021, a +68.7% return — $1,000 held through that year became about $1,687 by year-end. Its weakest year was 2023, at -19.4%.
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 ATEN have grown?
Investing $100 at the end of every month since 2014-03 would have grown to about $43,156 on $15,100 invested.
Did ATEN 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 $5,125. ATEN trailed the S&P 500 by +65.8% 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
A10 Networks, Inc. (ATEN) historical total-return data from 2014-03 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.