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Video: Compound Annual Growth Rate (CAGR) Definition
IBKR Historical Price Range
Date Open High Low Close Volume
09/04/2026 $91.55 $92.85 $91.14 $92.62 2.50M
09/08/2026 $91.76 $93.29 $90.87 $90.97 2.19M
09/09/2026 $90.99 $91.86 $90.25 $90.28 2.65M
09/10/2026 $89.06 $90.24 $88.74 $89.42 2.88M
09/11/2026 $90.71 $92.31 $89.45 $91.37 3.08M
About Interactive Brokers Group Inc - Class A
Interactive Brokers Group, Inc. is an automated global electronic broker. Co. custody and service accounts for hedge and mutual funds, exchange-traded funds (ETFs), registered investment advisors, proprietary trading groups, introducing brokers and individual investors. It specializes in routing orders and executing and processing trades in stocks, options, futures, foreign exchange instruments (forex), bonds, mutual funds, ETFs, and precious metals on more than 150 electronic exchanges and market centers.
IBKR historical stock prices picture
Interactive Brokers Group Inc - Class A (IBKR) has the following price history information. Looking back at IBKR historical stock prices for the last five trading days, on September 04, 2026, IBKR opened at $91.55, traded as high as $92.85 and as low as $91.14, and closed at $92.62. Trading volume was a total of 2.50M shares. On September 08, 2026, IBKR opened at $91.76, traded as high as $93.29 and as low as $90.87, and closed at $90.97. Trading volume was a total of 2.19M shares. On September 09, 2026, IBKR opened at $90.99, traded as high as $91.86 and as low as $90.25, and closed at $90.28. Trading volume was a total of 2.65M shares. On September 10, 2026, IBKR opened at $89.06, traded as high as $90.24 and as low as $88.74, and closed at $89.42. Trading volume was a total of 2.88M shares. On September 11, 2026, IBKR opened at $90.71, traded as high as $92.31 and as low as $89.45, and closed at $91.37. Trading volume was a total of 3.08M shares.

IBKR Historical Stock Prices By Date:

IBKR historical cagr picture

Below, we examine the compound annual growth rate — CAGR for short — of an investment into Interactive Brokers Group Inc - Class A shares, starting with a $10,000 purchase of IBKR, and working forward through the historical stock price information to today.

Growth of $10,000.00
With Dividends Reinvested
Start date: 09/14/2016
End date: 09/11/2026
Start price/share: $8.79
End price/share: $91.37
Starting shares: 1,137.66
Ending shares: 1,214.91
Dividends reinvested/share: $1.50
Total return: 1,010.06%
Average Annual Total Return: 27.22%
Starting investment: $10,000.00
Ending investment: $110,985.81
Years: 10.00
 
Growth of $10,000.00
Without Dividends Reinvested
Start date: 09/14/2016
End date: 09/11/2026
Start price/share: $8.79
End price/share: $91.37
Dividends collected/share: $1.50
Total return: 956.50%
Average Annual Total Return: 26.59%
Starting investment: $10,000.00
Ending investment: $105,612.05
Years: 10.00
IBKR Historical Closing Prices
Date Close
09/04/2026$92.62
09/08/2026$90.97
09/09/2026$90.28
09/10/2026$89.42
09/11/2026$91.37
Financials Historical Prices
IBKR is categorized under the Financials sector; below are some other companies in the same sector:

IBME Historical Stock Prices
IBMF Historical Stock Prices
IBMG Historical Stock Prices
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IBOC Historical Stock Prices
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Also explore: IBKR shares outstanding history

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