TTEK
Tetra Tech Inc
stockNASDAQ
At CloseOct 20, 2026 3:59:52 PM EDT
34.96USD+0.953%(+0.33)1,496,237
Pre-marketOct 20, 2026 9:27:30 AM EDT
34.64USD+0.029%(+0.01)
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8.95B
Industrials
Engineering & Construction
CEO
Dan Batrack
HQ
Pasadena, CA, USA
16,000
Previous Close
$34.63
Beta
0.34
52-Week High
$43.14 2026-02-11
52-Week Low
$25.81 2026-05-15
SMA 50
$35.22
SMA 200
$33.00
Avg. Vol 10D
1.71M
Avg. Vol 30D
2.04M
Avg. Vol 90D
2.72M
Relative Vol
0.41
256.04M
254.73M
99.49%
11,876,810
4.60%
5.07
63%/37%
34.73%
27.34%
0.2800%
2,400,000
61
10,635
31,573
Nov 11, 2026 (22d)
Aug 13, 2026 · $0.072
Sep 9, 2024 · 5-for-1
5.1B
436.0M
12.07
24.26
Sep 29, 2026
Tetra Tech Appoints Group Presidents · 
Financial Post
Sep 21, 2026
Sep 16, 2026
Sep 11, 2026
Sep 2, 2026
Sterling Infrastructure (STRL) Down 15.8% Since Last Earnings Report: Can It Rebound? · 
Zacks Investment Research
TTEK Profile
tetra tech is a leading provider of consulting, engineering, and technical services worldwide. we are a diverse company, including individuals with expertise in science, research, engineering, construction, and information technology. our strength is in collectively providing integrated services—delivering the best solutions to meet our clients' needs. employees: 13,000 revenue: $2.3 billion (fy 2015) nasdaq symbol: ttek geographic reach: more than 300 offices worldwide
TTEK Performance
| Period | Price | Date | Change | Beta |
|---|---|---|---|---|
| 1W | 33.54 | 2026-10-13 | +4.22% | 0.974 |
| 1M | 35.96 | 2026-09-21 | -2.79% | 0.371 |
| 3M | 31.27 | 2026-07-20 | +11.78% | 0.564 |
| 6M | 31.73 | 2026-04-20 | +10.16% | 0.128 |
| 1Y | 33.38 | 2025-10-20 | +4.72% | 0.343 |
| 2Y | 49.13 | 2024-10-21 | -28.85% | — |
| 5Y | 32.38 | 2021-10-20 | +7.94% | 0.841 |
TTEK Stock Summary
Tetra Tech Inc (NASDAQ:TTEK) stock price today is $34.96, and today's volume is 838,091. TTEK is up 0.938% today. The 30 day average volume is 2.04M. TTEK market cap is $8.95B with 256.04M shares outstanding.