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Video: Compound Annual Growth Rate (CAGR) Definition
TER Historical Price Range
Date Open High Low Close Volume
10/09/2026 $405.19 $414.26 $399.31 $402.68 1.81M
10/12/2026 $394.09 $394.68 $381.74 $383.85 2.73M
10/13/2026 $371.50 $381.10 $362.54 $380.29 2.74M
10/14/2026 $368.04 $371.71 $354.74 $359.44 3.77M
10/15/2026 $341.80 $344.88 $331.89 $343.21 4.53M
About Teradyne
Teradyne, Inc. is a global supplier of automated test equipment and robotics solutions. Co. designs, develops, manufactures and sells automated test systems and robotics products. Co. operates through four segments: Semiconductor Test, System Test, Wireless Test and Robotics. The Semiconductor Test segment includes operations related to the design, manufacturing and marketing of semiconductor test products and services. The System Test segment includes operations related to the design, manufacturing and marketing of products and services for storage and system level test, defense/aerospace instrumentation test, and circuit-board test.
TER historical stock prices picture
Teradyne (TER) has the following price history information. Looking back at TER historical stock prices for the last five trading days, on October 09, 2026, TER opened at $405.19, traded as high as $414.26 and as low as $399.31, and closed at $402.68. Trading volume was a total of 1.81M shares. On October 12, 2026, TER opened at $394.09, traded as high as $394.68 and as low as $381.74, and closed at $383.85. Trading volume was a total of 2.73M shares. On October 13, 2026, TER opened at $371.50, traded as high as $381.10 and as low as $362.54, and closed at $380.29. Trading volume was a total of 2.74M shares. On October 14, 2026, TER opened at $368.04, traded as high as $371.71 and as low as $354.74, and closed at $359.44. Trading volume was a total of 3.77M shares. On October 15, 2026, TER opened at $341.80, traded as high as $344.88 and as low as $331.89, and closed at $343.21. Trading volume was a total of 4.53M shares.

TER Historical Stock Prices By Date:

TER historical cagr picture

Below, we examine the compound annual growth rate — CAGR for short — of an investment into Teradyne shares, starting with a $10,000 purchase of TER, and working forward through the historical stock price information to today.

Growth of $10,000.00
With Dividends Reinvested
Start date: 10/18/2016
End date: 10/15/2026
Start price/share: $21.26
End price/share: $343.21
Starting shares: 470.37
Ending shares: 496.14
Dividends reinvested/share: $4.09
Total return: 1,602.81%
Average Annual Total Return: 32.79%
Starting investment: $10,000.00
Ending investment: $170,339.85
Years: 10.00
 
Growth of $10,000.00
Without Dividends Reinvested
Start date: 10/18/2016
End date: 10/15/2026
Start price/share: $21.26
End price/share: $343.21
Dividends collected/share: $4.09
Total return: 1,533.58%
Average Annual Total Return: 32.24%
Starting investment: $10,000.00
Ending investment: $163,416.50
Years: 10.00
TER Historical Closing Prices
Date Close
10/09/2026$402.68
10/12/2026$383.85
10/13/2026$380.29
10/14/2026$359.44
10/15/2026$343.21
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Also explore: TER shares outstanding history

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