Historical Stock Price
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Video: Compound Annual Growth Rate (CAGR) Definition
Date Open High Low Close Volume
07/06/2026 $29.89 $31.33 $29.75 $31.15 2.95M
07/07/2026 $31.29 $31.75 $30.60 $30.93 2.90M
07/08/2026 $30.64 $31.08 $30.55 $30.79 3.06M
07/09/2026 $30.54 $31.02 $30.27 $30.94 2.41M
07/10/2026 $31.14 $31.29 $30.58 $30.99 2.04M
Tetra Tech, Inc. is a global provider of consulting and engineering services that is focused on water, environment, sustainable infrastructure, renewable energy and international development. Co. is Leading with Science to provide solutions for its public and private clients. Co. operates through its two segments: government services group (GSG) and commercial/international services group (CIG). Its GSG segment provides consulting and engineering services primarily to U.S. (U.S.) government clients and development agencies worldwide.
TTEK historical stock prices picture
Tetra Tech (TTEK) has the following price history information. Looking back at TTEK historical stock prices for the last five trading days, on July 06, 2026, TTEK opened at $29.89, traded as high as $31.33 and as low as $29.75, and closed at $31.15. Trading volume was a total of 2.95M shares. On July 07, 2026, TTEK opened at $31.29, traded as high as $31.75 and as low as $30.60, and closed at $30.93. Trading volume was a total of 2.90M shares. On July 08, 2026, TTEK opened at $30.64, traded as high as $31.08 and as low as $30.55, and closed at $30.79. Trading volume was a total of 3.06M shares. On July 09, 2026, TTEK opened at $30.54, traded as high as $31.02 and as low as $30.27, and closed at $30.94. Trading volume was a total of 2.41M shares. On July 10, 2026, TTEK opened at $31.14, traded as high as $31.29 and as low as $30.58, and closed at $30.99. Trading volume was a total of 2.04M shares.

TTEK Historical Stock Prices By Date:

TTEK historical cagr picture

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

Growth of $10,000.00
With Dividends Reinvested

Start date: 07/13/2016
End date: 07/10/2026
Start price/share: $6.36
End price/share: $30.99
Starting shares: 1,572.33
Ending shares: 1,690.88
Dividends reinvested/share: $1.60
Total return: 424.00%
Average Annual Total Return: 18.02%
Starting investment: $10,000.00
Ending investment: $52,403.34
Years: 10.00
 
Growth of $10,000.00
Without Dividends Reinvested

Start date: 07/13/2016
End date: 07/10/2026
Start price/share: $6.36
End price/share: $30.99
Dividends collected/share: $1.60
Total return: 412.45%
Average Annual Total Return: 17.76%
Starting investment: $10,000.00
Ending investment: $51,260.57
Years: 10.00
Date Close
07/06/2026$31.15
07/07/2026$30.93
07/08/2026$30.79
07/09/2026$30.94
07/10/2026$30.99
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Also explore: TTEK shares outstanding history

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