What if you'd held ATI?
A $1,000 investment in ATI Inc. (ATI) at the month-end close of 1999-11 would be worth $11,913 at the close of 2026-09 — +1091.3% total return, dividends reinvested. The same $1,000 in the S&P 500, dividends reinvested, would be worth $8,999.
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 1999
| Year | Value of $1,000 | Year return |
|---|---|---|
| 1999 | $1,000 | — |
| 2000 | $735 | -26.5% |
| 2001 | $811 | +10.3% |
| 2002 | $318 | -60.8% |
| 2003 | $707 | +122.1% |
| 2004 | $1,177 | +66.5% |
| 2005 | $1,980 | +68.2% |
| 2006 | $5,008 | +152.9% |
| 2007 | $4,799 | -4.2% |
| 2008 | $1,441 | -70.0% |
| 2009 | $2,592 | +79.8% |
| 2010 | $3,240 | +25.0% |
| 2011 | $2,845 | -12.2% |
| 2012 | $1,845 | -35.2% |
| 2013 | $2,218 | +20.2% |
| 2014 | $2,207 | -0.5% |
| 2015 | $734 | -66.7% |
| 2016 | $1,056 | +43.9% |
| 2017 | $1,601 | +51.5% |
| 2018 | $1,444 | -9.8% |
| 2019 | $1,370 | -5.1% |
| 2020 | $1,112 | -18.8% |
| 2021 | $1,056 | -5.0% |
| 2022 | $1,980 | +87.4% |
| 2023 | $3,015 | +52.3% |
| 2024 | $3,650 | +21.0% |
| 2025 | $7,610 | +108.5% |
| 2026 | $13,375 | +75.7% |
Best and worst month-end to buy
The best single month-end close to have bought ATI was 2003-03 ($2.28): $1,000 then is $88,461 today. The worst was 2026-08 ($204): $1,000 then is $988.
FAQ
What would $1,000 in ATI be worth today?
A $1,000 investment in ATI Inc. (ATI) at the start of 1999 would be worth about $11,913 today, a total return of +1091.3%. Dividends are reinvested in these figures.
What were the best and worst years for ATI?
ATI Inc. (ATI)'s strongest calendar year since 1999 was 2006, a +152.9% return — $1,000 held through that year became about $2,529 by year-end. Its weakest year was 2008, at -70.0%.
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 ATI have grown?
Investing $100 at the end of every month since 1999-11 would have grown to about $338,655 on $32,300 invested.
Did ATI 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 $8,999. ATI beat the S&P 500 by +32.4% 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
ATI Inc. (ATI) historical total-return data from 1999-11 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 2026-09-02. Not financial advice.