What If You Invested $1,000 in Assured Guaranty (AGO)?
Enter any amount and start date. We use historical prices to show your hypothetical return.
Historical extremes
What if you bought at the best or worst time? Check max profit, max drawdown, and total return since IPO.
Max profit
+4,172%
(42.7 times)
- Buy
- Mar 9, 2009
- $2.19
- Sell
- Jan 30, 2025
- $93.55
Buying AGO at the best price and selling at the peak would have turned $1,000 into $42,716.89.
Max drawdown
90.19%
(fell to 10% of peak)
- Peak
- Jun 6, 2007
- $22.33
- Trough
- Mar 9, 2009
- $2.19
A $1,000 investment in AGO at the peak would have shrunk to $98.07 at the trough.
Return since IPO
+497.90%
(5.97 times)
- IPO
- Apr 23, 2004
- $12.86
- Current
- May 22, 2026
- $76.89
A $1,000 investment in AGO at IPO would be worth $5,979 today.
Frequently asked questions
What is Assured Guaranty (AGO) stock's all-time high (ATH) and all-time low (ATL)?
Assured Guaranty (AGO) stock's all-time low (ATL) was $2.19 on Mar 9, 2009. The all-time high (ATH) was $93.55 on Jan 30, 2025.
What if you invested $1,000 in Assured Guaranty (AGO) stock for maximum profit?
Buying Assured Guaranty (AGO) stock at the best price ($2.19 on Mar 9, 2009) and selling at the peak ($93.55 on Jan 30, 2025) would have turned $1,000 into $42,716.89. Historical return: +4,171.69% (42.7 times).
What are Assured Guaranty (AGO)'s best buy and sell dates for maximum profit?
The best buy date for Assured Guaranty (AGO) stock was Mar 9, 2009 at $2.19. The best sell date was Jan 30, 2025 at $93.55. This investment would have returned +4,171.69% (42.7 times).
What was Assured Guaranty (AGO) stock's maximum drawdown?
Assured Guaranty (AGO) stock's worst decline was 90.19% (fell to 10% of peak) from peak to trough. Peak: $22.33 on Jun 6, 2007. Trough: $2.19 on Mar 9, 2009. A $1,000 investment at the peak would have been worth $98.07 at the trough.
What if you bought Assured Guaranty (AGO) stock at IPO?
A $1,000 investment in Assured Guaranty (AGO) stock at IPO ($12.86 on Apr 23, 2004) would be worth $5,979 today. Historical return: +497.90% (5.97 times). Current stock price: $76.89 as of May 22, 2026.
What if you invested $1,000 in Assured Guaranty (AGO) 5 years ago?
A $1,000 investment in Assured Guaranty (AGO) stock 5 years ago ($43.18 on May 21, 2021) would be worth $1,780.69 today. Historical return: +78.07% (1.78 times). Current stock price: $76.89 as of May 22, 2026.
What if you invested $1,000 in Assured Guaranty (AGO) 10 years ago?
A $1,000 investment in Assured Guaranty (AGO) stock 10 years ago ($21.92 on May 20, 2016) would be worth $3,507.76 today. Historical return: +250.78% (3.50 times). Current stock price: $76.89 as of May 22, 2026.
What if you invested $1,000 in Assured Guaranty (AGO) 20 years ago?
A $1,000 investment in Assured Guaranty (AGO) stock 20 years ago ($18.19 on May 22, 2006) would be worth $4,227.05 today. Historical return: +322.70% (4.22 times). Current stock price: $76.89 as of May 22, 2026.
Data & methodology
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: the best buy and sell dates that maximize percentage return. Max drawdown: the largest peak-to-trough decline in price. Return since IPO: 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 dividend-adjusted closing prices from our data provider. The calculator and Historical extremes use the same data source for consistent results.
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 AGO. You can select any date between our first and most recent data point.
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