What if you'd held AMT?
A $1,000 investment in American Tower Corporation (REIT) (AMT) at the month-end close of 1998-02 would be worth $14,004 at the close of 2026-08 — +1300.4% total return, dividends reinvested. The same $1,000 in the S&P 500 would be worth $7,346.
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. Click any year for the full story.
Every year, $1,000 from 1998
| Year | Value of $1,000 | Year return |
|---|---|---|
| 1998 | $1,000 | — |
| 1999 | $1,034 | +3.4% |
| 2000 | $1,281 | +23.9% |
| 2001 | $320 | -75.0% |
| 2002 | $119 | -62.7% |
| 2003 | $366 | +206.6% |
| 2004 | $622 | +70.1% |
| 2005 | $917 | +47.3% |
| 2006 | $1,261 | +37.6% |
| 2007 | $1,441 | +14.3% |
| 2008 | $992 | -31.2% |
| 2009 | $1,462 | +47.4% |
| 2010 | $1,747 | +19.5% |
| 2011 | $2,042 | +16.9% |
| 2012 | $2,663 | +30.4% |
| 2013 | $2,791 | +4.8% |
| 2014 | $3,510 | +25.8% |
| 2015 | $3,510 | 0.0% |
| 2016 | $3,904 | +11.2% |
| 2017 | $5,377 | +37.7% |
| 2018 | $6,093 | +13.3% |
| 2019 | $9,010 | +47.9% |
| 2020 | $8,967 | -0.5% |
| 2021 | $11,916 | +32.9% |
| 2022 | $8,857 | -25.7% |
| 2023 | $9,333 | +5.4% |
| 2024 | $8,198 | -12.2% |
| 2025 | $8,123 | -0.9% |
| 2026 | $8,231 | +1.3% |
Best and worst month-end to buy
The best single month-end close to have bought AMT was 2002-10 ($1.01): $1,000 then is $172,591 today. The worst was 2021-12 ($253): $1,000 then is $691.
FAQ
What would $1,000 in AMT be worth today?
A $1,000 investment in American Tower Corporation (REIT) (AMT) at the start of 1998 would be worth about $14,004 today, a total return of +1300.4%. Dividends are reinvested in these figures.
What were the best and worst years for AMT?
American Tower Corporation (REIT) (AMT)'s strongest calendar year since 1998 was 2003, a +206.6% return — $1,000 held through that year became about $3,066 by year-end. Its weakest year was 2001, at -75.0%.
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 AMT have grown?
Investing $100 at the end of every month since 1998-02 would have grown to about $294,011 on $34,300 invested.
Did AMT beat the S&P 500?
Over the same period, $1,000 in the S&P 500 index would be worth $7,346. AMT beat the S&P 500 by +90.6% in total return.
Is this investment advice?
No. What If I'd Held is an entertainment and education tool. Every number is a historical calculation, not a prediction, and past performance never guarantees future results.
Methodology
American Tower Corporation (REIT) (AMT) historical total-return data from 1998-02 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.
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. What If I'd Held is entertainment, not investment advice.
What if you'd held…
Data: adjusted close prices via Yahoo Finance. As of 2026-08. Not financial advice.