What If You Invested $1,000 in Atmos Energy (ATO)?
Enter any amount and start date. We use historical prices to show your hypothetical return.
Atmos Energy
ATO
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
+16497.38% (166.0 times)
- Buy
- Aug 30, 1984
- $1.14
- Sell
- Mar 13, 2026
- $188.58
Buying ATO at the all-time low and selling at the peak would have turned $1,000 into $165,973.75.
Max drawdown
-51.94% (fell to 48% of peak)
- Peak
- Jan 4, 1999
- $11.93
- Trough
- Apr 24, 2000
- $5.73
The worst decline for ATO was -51.94% (fell to 48% of peak) from peak to trough.
IPO to current
+14887.18% (149.9 times)
- IPO
- Dec 28, 1983
- $1.26
- Current
- Mar 13, 2026
- $188.58
A $1,000 investment in ATO at IPO would be worth $149,871.85 today.
Dollar amounts based on selected investment ($1,000)
Frequently asked questions
What is Atmos Energy (ATO) stock's all-time high and all-time low?
- Atmos Energy (ATO) stock's all-time low was $1.14 on Aug 30, 1984. The all-time high was $188.58 on Mar 13, 2026.
What if you invested $1,000 in Atmos Energy (ATO) stock at the all-time low?
- Buying Atmos Energy (ATO) stock at the all-time low ($1.14 on Aug 30, 1984) and selling at the peak ($188.58 on Mar 13, 2026) would have turned $1,000 into $165,973.75. Historical return: +16497.38% (166.0 times).
What are Atmos Energy (ATO)'s best buy and sell dates for maximum profit?
- The best buy date for Atmos Energy (ATO) stock was Aug 30, 1984 (all-time low at $1.14). The best sell date was Mar 13, 2026 at $188.58. This investment would have returned +16497.38% (166.0 times).
What was Atmos Energy (ATO) stock's maximum drawdown?
- Atmos Energy (ATO) stock's worst decline was -51.94% (fell to 48% of peak) from peak to trough. Peak: $11.93 on Jan 4, 1999. Trough: $5.73 on Apr 24, 2000. A $1,000 investment at the peak would have been worth $480.59 at the trough.
What if you bought Atmos Energy (ATO) stock at IPO?
- A $1,000 investment in Atmos Energy (ATO) stock at IPO ($1.26 on Dec 28, 1983) would be worth $149,871.85 today. Historical return: +14887.18% (149.9 times). Current stock price: $188.58 as of Mar 13, 2026.
What if you invested $1,000 in Atmos Energy (ATO) 5 years ago?
- A $1,000 investment in Atmos Energy (ATO) stock 5 years ago ($80.7 on Mar 12, 2021) would be worth $2,336.86 today. Historical return: +133.69% (2.34 times). Current stock price: $188.58 as of Mar 13, 2026.
What if you invested $1,000 in Atmos Energy (ATO) 10 years ago?
- A $1,000 investment in Atmos Energy (ATO) stock 10 years ago ($56 on Mar 11, 2016) would be worth $3,367.79 today. Historical return: +236.78% (3.37 times). Current stock price: $188.58 as of Mar 13, 2026.
What if you invested $1,000 in Atmos Energy (ATO) 20 years ago?
- A $1,000 investment in Atmos Energy (ATO) stock 20 years ago ($13.96 on Mar 13, 2006) would be worth $13,511.2 today. Historical return: +1251.12% (13.5 times). Current stock price: $188.58 as of Mar 13, 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 ATO. You can select any date between our first and most recent data point.