What If You Invested $1,000 in Lennox International (LII)?
Enter any amount and start date. We use historical prices to show your hypothetical return.
Lennox International
LII
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
+14641.06% (147.4 times)
- Buy
- Dec 4, 2000
- $4.55
- Sell
- Nov 25, 2024
- $670.7
Buying LII at the all-time low and selling at the peak would have turned $1,000 into $147,410.63.
Max drawdown
-62.76% (fell to 37% of peak)
- Peak
- Jul 30, 1999
- $12.22
- Trough
- Dec 4, 2000
- $4.55
The worst decline for LII was -62.76% (fell to 37% of peak) from peak to trough.
IPO to current
+3911.31% (40.1 times)
- IPO
- Jul 29, 1999
- $11.94
- Current
- Mar 16, 2026
- $478.86
A $1,000 investment in LII at IPO would be worth $40,113.06 today.
Dollar amounts based on selected investment ($1,000)
Frequently asked questions
What is Lennox International (LII) stock's all-time high and all-time low?
- Lennox International (LII) stock's all-time low was $4.55 on Dec 4, 2000. The all-time high was $670.7 on Nov 25, 2024.
What if you invested $1,000 in Lennox International (LII) stock at the all-time low?
- Buying Lennox International (LII) stock at the all-time low ($4.55 on Dec 4, 2000) and selling at the peak ($670.7 on Nov 25, 2024) would have turned $1,000 into $147,410.63. Historical return: +14641.06% (147.4 times).
What are Lennox International (LII)'s best buy and sell dates for maximum profit?
- The best buy date for Lennox International (LII) stock was Dec 4, 2000 (all-time low at $4.55). The best sell date was Nov 25, 2024 at $670.7. This investment would have returned +14641.06% (147.4 times).
What was Lennox International (LII) stock's maximum drawdown?
- Lennox International (LII) stock's worst decline was -62.76% (fell to 37% of peak) from peak to trough. Peak: $12.22 on Jul 30, 1999. Trough: $4.55 on Dec 4, 2000. A $1,000 investment at the peak would have been worth $372.44 at the trough.
What if you bought Lennox International (LII) stock at IPO?
- A $1,000 investment in Lennox International (LII) stock at IPO ($11.94 on Jul 29, 1999) would be worth $40,113.06 today. Historical return: +3911.31% (40.1 times). Current stock price: $478.86 as of Mar 16, 2026.
What if you invested $1,000 in Lennox International (LII) 5 years ago?
- A $1,000 investment in Lennox International (LII) stock 5 years ago ($285.39 on Mar 16, 2021) would be worth $1,677.92 today. Historical return: +67.79% (1.68 times). Current stock price: $478.86 as of Mar 16, 2026.
What if you invested $1,000 in Lennox International (LII) 10 years ago?
- A $1,000 investment in Lennox International (LII) stock 10 years ago ($117.63 on Mar 16, 2016) would be worth $4,070.86 today. Historical return: +307.09% (4.07 times). Current stock price: $478.86 as of Mar 16, 2026.
What if you invested $1,000 in Lennox International (LII) 20 years ago?
- A $1,000 investment in Lennox International (LII) stock 20 years ago ($24.29 on Mar 16, 2006) would be worth $19,717.55 today. Historical return: +1871.76% (19.7 times). Current stock price: $478.86 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 LII. You can select any date between our first and most recent data point.