What If You Invested $1,000 in American Tower (AMT)?
Enter any amount and start date. We use historical prices to show your hypothetical return.
American Tower
AMT
Historical extremes
Maximum profit (buy at all-time low, sell at peak), maximum drawdown (peak to trough), and total return from IPO to current price.
Max profit
+50906.23% (510.1 times)
- Buy
- Oct 9, 2002
- $0.52
- Sell
- Sep 8, 2021
- $264.79
Buying AMT at the all-time low and selling at the peak would have turned $1,000 into $510,062.26.
Max drawdown
-98.70% (fell to 1% of peak)
- Peak
- Mar 10, 2000
- $40.08
- Trough
- Oct 9, 2002
- $0.52
The worst decline for AMT was -98.70% (fell to 1% of peak) from peak to trough.
IPO to current
+1353.93% (14.5 times)
- IPO
- Feb 27, 1998
- $12.7
- Current
- Mar 16, 2026
- $184.71
A $1,000 investment in AMT at IPO would be worth $14,539.27 today.
Dollar amounts based on selected investment ($1,000)
Frequently asked questions
What is American Tower (AMT) stock's all-time high and all-time low?
- American Tower (AMT) stock's all-time low was $0.52 on Oct 9, 2002. The all-time high was $264.79 on Sep 8, 2021.
What if you invested $1,000 in American Tower (AMT) stock at the all-time low?
- Buying American Tower (AMT) stock at the all-time low ($0.52 on Oct 9, 2002) and selling at the peak ($264.79 on Sep 8, 2021) would have turned $1,000 into $510,062.26. Historical return: +50906.23% (510.1 times).
What are American Tower (AMT)'s best buy and sell dates for maximum profit?
- The best buy date for American Tower (AMT) stock was Oct 9, 2002 (all-time low at $0.52). The best sell date was Sep 8, 2021 at $264.79. This investment would have returned +50906.23% (510.1 times).
What was American Tower (AMT) stock's maximum drawdown?
- American Tower (AMT) stock's worst decline was -98.70% (fell to 1% of peak) from peak to trough. Peak: $40.08 on Mar 10, 2000. Trough: $0.52 on Oct 9, 2002. A $1,000 investment at the peak would have been worth $12.95 at the trough.
What if you bought American Tower (AMT) stock at IPO?
- A $1,000 investment in American Tower (AMT) stock at IPO ($12.7 on Feb 27, 1998) would be worth $14,539.27 today. Historical return: +1353.93% (14.5 times). Current stock price: $184.71 as of Mar 16, 2026.
What if you invested $1,000 in American Tower (AMT) 5 years ago?
- A $1,000 investment in American Tower (AMT) stock 5 years ago ($192.42 on Mar 16, 2021) would be worth $959.94 today. Historical return: -4.01% (0.96 times). Current stock price: $184.71 as of Mar 16, 2026.
What if you invested $1,000 in American Tower (AMT) 10 years ago?
- A $1,000 investment in American Tower (AMT) stock 10 years ago ($78.12 on Mar 16, 2016) would be worth $2,364.51 today. Historical return: +136.45% (2.36 times). Current stock price: $184.71 as of Mar 16, 2026.
What if you invested $1,000 in American Tower (AMT) 20 years ago?
- A $1,000 investment in American Tower (AMT) stock 20 years ago ($22.37 on Mar 16, 2006) would be worth $8,258.24 today. Historical return: +725.82% (8.26 times). Current stock price: $184.71 as of Mar 16, 2026.
About this data
- How does the investment calculator work?
- Enter an investment amount and a start date. We use historical stock prices to calculate how many shares you would have bought, then apply the current price to show your hypothetical portfolio value and return.
- What are Historical extremes?
- Max profit: buy at all-time low, sell at the highest price after. Max drawdown: the largest peak-to-trough decline in price. IPO to current: total return from IPO date to the latest price.
- What is Max drawdown?
- Maximum drawdown is the largest peak-to-trough decline in price. It shows the worst drop from any prior high to a subsequent low. Peak and Trough are the dates and prices at which this decline occurred.
- Does this include dividends?
- The calculator uses adjusted closing prices when available, which account for stock splits and dividends. For the most accurate results, we recommend using data that includes dividend adjustments.
- Where does the price data come from?
- Historical prices are from Yahoo Finance, adjusted for stock splits and dividends. We use adjusted close for all calculations.
- How are the dollar amounts in the cards calculated?
- The dollar amounts in Historical extremes use the investment amount you select in the calculator above (e.g. $1,000). They show what your investment would have been worth at the Buy/Peak/IPO date versus the Sell/Trough/Current date.
- What date range can I use?
- The available date range depends on our historical price data for AMT. You can select any date between our first and most recent data point.