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Video: Compound Annual Growth Rate (CAGR) Definition
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 |
| 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. | |
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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:

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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