Stock listing
Dusseldorf:TT6 Tetra Tech, Inc. Aktie
German listing (Dusseldorf) of Tetra Tech, Inc. · home listing NASDAQ:TTEK
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Home listing price · NASDAQ:TTEK
$38.65 USD +0.56 (+1.5%)
Close on Oct 30, 2026 · This listing has no price on 6ix; the price shown is the home listing's, NASDAQ:TTEK
- Day range
- $37.98 – $38.76 USDOct 30, 2026
- Volume
- 3.28M sharesOct 30, 2026
- Market cap
- $9.90B USDAt the close on Oct 30, 2026 · price × 256.0M shares outstanding
- 52-week range
- $25.81 – $43.14 USDLowest and highest trades, Oct 31, 2025 – Oct 30, 2026
- Traded on an average day
- $82.40M USDMedian day 2.05M shares · last 3 months, Jul 30, 2026 – Oct 30, 2026
Prices by listing
| Listing | Last | Change | Volume | Open | High | Low | Previous close | Price from |
|---|---|---|---|---|---|---|---|---|
| NASDAQ:TTEK · Home | $38.65 USD | +0.56 (+1.5%) | 3,281,684 | $38.35 | $38.76 | $37.98 | $38.09 | Close on Oct 30, 2026 |
| Frankfurt:TT6 | €34.13 EUR | +1.47 (+4.5%) | — | €33.28 | €34.13 | €33.28 | €32.66 | Close on Oct 30, 2026 |
Daily closes
Last 3 months, Jul 30, 2026 – Oct 30, 2026 · NASDAQ:TTEK · USD, adjusted for splits
| Day | Close | Change | % | Open | High | Low | Volume |
|---|---|---|---|---|---|---|---|
| $38.65 | +0.56 | +1.5% | $38.35 | $38.76 | $37.98 | 3,281,684 | |
| $38.09 | +1.31 | +3.6% | $37.14 | $38.12 | $37.14 | 1,977,201 | |
| $36.78 | -0.09 | -0.2% | $36.79 | $37.01 | $36.35 | 1,926,777 | |
| $36.87 | -0.26 | -0.7% | $36.96 | $37.13 | $36.54 | 2,065,430 | |
| $37.13 | +0.15 | +0.4% | $36.88 | $37.47 | $36.88 | 2,591,006 | |
| $36.98 | +0.17 | +0.5% | $36.66 | $37.00 | $35.90 | 1,803,900 | |
| $36.81 | +1.76 | +5.0% | $35.24 | $36.82 | $35.17 | 2,540,200 | |
| $35.05 | +0.09 | +0.3% | $35.00 | $35.42 | $34.98 | 1,621,000 | |
| $34.96 | +0.33 | +1.0% | $34.69 | $35.08 | $34.59 | 1,496,200 | |
| $34.63 | -0.09 | -0.3% | $34.49 | $34.80 | $34.38 | 1,435,700 | |
| $34.72 | -0.06 | -0.2% | $34.93 | $35.17 | $34.52 | 1,407,200 | |
| $34.78 | +1.17 | +3.5% | $33.56 | $34.97 | $33.56 | 2,312,800 | |
| $33.61 | +0.07 | +0.2% | $33.63 | $34.03 | $33.29 | 2,260,300 | |
| $33.54 | +0.05 | +0.1% | $33.63 | $33.90 | $33.18 | 1,610,000 | |
| $33.49 | +0.15 | +0.4% | $33.45 | $33.87 | $33.41 | 1,486,100 | |
| $33.34 | -0.07 | -0.2% | $33.41 | $33.70 | $33.21 | 1,616,000 | |
| $33.41 | +0.69 | +2.1% | $32.78 | $33.43 | $32.23 | 1,519,100 | |
| $32.72 | -0.66 | -2.0% | $33.17 | $33.31 | $32.02 | 1,906,100 | |
| $33.38 | +0.05 | +0.2% | $33.33 | $33.58 | $33.15 | 1,538,100 | |
| $33.33 | +0.21 | +0.6% | $33.05 | $33.55 | $32.57 | 2,818,400 | |
| $33.12 | -0.60 | -1.8% | $33.78 | $33.93 | $32.95 | 1,913,000 | |
| $33.72 | +0.77 | +2.3% | $33.06 | $33.87 | $32.92 | 1,934,200 | |
| $32.95 | -0.75 | -2.2% | $33.64 | $33.86 | $32.91 | 2,616,900 | |
| $33.70 | -0.19 | -0.6% | $33.73 | $34.25 | $33.54 | 1,488,400 | |
| $33.89 | -0.02 | -0.1% | $33.58 | $34.01 | $33.25 | 1,932,600 | |
| $33.91 | +0.27 | +0.8% | $33.49 | $33.95 | $33.33 | 2,047,400 | |
| $33.64 | -1.26 | -3.6% | $34.75 | $36.00 | $33.62 | 2,017,600 | |
| $34.90 | -0.56 | -1.6% | $35.43 | $35.81 | $34.54 | 3,076,900 | |
| $35.46 | -0.50 | -1.4% | $35.97 | $36.33 | $35.22 | 2,303,300 | |
| $35.96 | +0.27 | +0.8% | $35.81 | $36.19 | $35.60 | 1,455,500 | |
| $35.69 | -0.42 | -1.2% | $36.16 | $36.31 | $35.52 | 5,036,100 | |
| $36.11 | -0.36 | -1.0% | $36.77 | $36.77 | $35.99 | 2,235,000 | |
| $36.47 | -0.25 | -0.7% | $36.72 | $37.27 | $36.13 | 1,756,900 | |
| $36.72 | +0.01 | 0.0% | $36.50 | $36.95 | $36.30 | 1,575,200 | |
| $36.71 | +0.22 | +0.6% | $36.60 | $37.15 | $36.32 | 2,460,200 | |
| $36.49 | +0.78 | +2.2% | $36.01 | $36.52 | $35.63 | 1,686,300 | |
| $35.71 | +0.20 | +0.6% | $35.76 | $36.39 | $35.42 | 2,218,900 | |
| $35.51 | -0.13 | -0.4% | $35.50 | $35.75 | $35.30 | 1,473,700 | |
| $35.64 | -0.27 | -0.8% | $35.76 | $35.97 | $35.34 | 2,042,900 | |
| $35.91 | -0.38 | -1.0% | $35.95 | $36.30 | $35.69 | 1,495,100 | |
| $36.29 | +0.38 | +1.1% | $36.28 | $36.74 | $35.90 | 1,394,700 | |
| $35.91 | +0.17 | +0.5% | $35.65 | $36.08 | $35.44 | 2,131,200 | |
| $35.74 | -0.40 | -1.1% | $36.12 | $36.31 | $35.38 | 1,948,700 | |
| $36.14 | -0.40 | -1.1% | $36.40 | $36.63 | $35.95 | 1,953,700 | |
| $36.54 | -0.10 | -0.3% | $36.83 | $36.99 | $36.52 | 1,739,000 | |
| $36.64 | +0.05 | +0.1% | $36.40 | $36.72 | $36.14 | 1,867,400 | |
| $36.59 | -0.20 | -0.5% | $36.78 | $37.37 | $36.49 | 2,055,400 | |
| $36.79 | -0.07 | -0.2% | $36.66 | $37.01 | $36.38 | 2,665,500 | |
| $36.86 | -0.14 | -0.4% | $37.06 | $37.59 | $36.82 | 4,249,700 | |
| $37.00 | +0.43 | +1.2% | $36.70 | $37.44 | $36.39 | 3,332,900 | |
| $36.57 | -0.03 | -0.1% | $36.37 | $36.97 | $36.31 | 3,856,800 | |
| $36.60 | +1.20 | +3.4% | $35.60 | $36.78 | $35.41 | 4,643,000 | |
| $35.40 | -0.42 | -1.2% | $36.07 | $36.37 | $35.34 | 2,659,600 | |
| $35.82 | -0.69 | -1.9% | $36.24 | $36.49 | $35.68 | 2,043,900 | |
| $36.51 | +0.08 | +0.2% | $36.40 | $36.74 | $36.09 | 3,369,600 | |
| $36.43 | +0.93 | +2.6% | $35.43 | $36.53 | $35.19 | 2,702,500 | |
| $35.50 | +0.12 | +0.3% | $35.34 | $35.56 | $34.51 | 2,160,000 | |
| $35.38 | +0.34 | +1.0% | $34.65 | $35.66 | $34.27 | 2,397,200 | |
| $35.04 | -0.40 | -1.1% | $35.02 | $35.66 | $34.94 | 2,743,700 | |
| $35.44 | +0.71 | +2.0% | $34.73 | $35.49 | $34.50 | 1,816,300 | |
| $34.73 | +0.44 | +1.3% | $34.41 | $34.82 | $34.07 | 2,238,000 | |
| $34.29 | -0.74 | -2.1% | $35.21 | $35.23 | $34.11 | 2,635,000 | |
| $35.03 | +1.20 | +3.5% | $33.84 | $35.12 | $33.83 | 2,282,100 | |
| $33.83 | +0.67 | +2.0% | $33.69 | $34.22 | $33.53 | 2,563,000 | |
| $33.16 | +0.71 | +2.2% | $32.11 | $33.23 | $31.56 | 3,546,400 | |
| $32.45 | -1.33 | -3.9% | $34.96 | $34.96 | $32.04 | 6,912,000 |
- Ticker
- Dusseldorf:TT6
- Asset type
- Stock
- Sector
- Industrials
- Industry
- Construction & engineering
- Exchange
- Dusseldorf
- Currency
- EUR
What changed lately
Latest news release · Oct 21, 2026
Tetra Tech Announces Planned Dates for Fourth Quarter and Fiscal 2026 Results and Conference Call
Latest earnings call · Jul 30, 2026
Tetra Tech (NASDAQ:TTEK) Q3 2026 Earnings Call
Replay and transcript
Latest deck · Jul 30, 2026
Q3 2026 Earnings Presentation
Earnings · 15 slides
Calls
Upcoming
Tetra Tech (NASDAQ:TTEK) Q4 2026 Earnings Call
Thu, Nov 12, 2026 · 11:00 AM ET
Register
Replays
Tetra Tech (NASDAQ:TTEK) Q3 2026 Earnings Call
Thu, Jul 30, 2026 · 11:00 AM ET
Watch TranscriptTetra Tech (NASDAQ:TTEK) Q2 2026 Earnings Call
Thu, Apr 30, 2026 · 11:00 AM ET
Watch TranscriptTetra Tech (NASDAQ:TTEK) Q1 2026 Earnings Call
Thu, Jan 29, 2026 · 11:00 AM ET
Watch Transcript
Latest news
Tetra Tech Announces Planned Dates for Fourth Quarter and Fiscal 2026 Results and Conference Call
Oct 21, 2026
Closed $36.81 (+5.0%) on Oct 22, 2026
Tetra Tech Appoints Group Presidents
Sep 29, 2026
Closed $33.70 (-0.6%) on Sep 29, 2026
Tetra Tech Announces $500 Million Increase to its Share Repurchase Program
Sep 10, 2026
Closed $35.71 (+0.6%) on Sep 10, 2026
Tetra Tech Awarded $16.8 Million EPA Land Revitalization Technical Services Contract
Aug 25, 2026
Closed $36.79 (-0.2%) on Aug 25, 2026
Tetra Tech Awarded $12.7 Million MCC Engineering Services Contracts
Aug 20, 2026
Closed $36.57 (-0.1%) on Aug 20, 2026
Tetra Tech Awarded $49 Million Multiple-Award Contract for Coastal Geospatial Services
Aug 18, 2026
Closed $35.40 (-1.2%) on Aug 18, 2026
Tetra Tech Reports Strong Third Quarter 2026 Results
Jul 29, 2026
Closed $32.45 (-3.9%) on Jul 30, 2026
FAA Selects Tetra Tech for $27 Million Major Airspace Redesign Task Order Contract
Jul 23, 2026
Closed $30.57 (-1.3%) on Jul 23, 2026
Tetra Tech Selected to Design Largest Dedicated PFAS Water Treatment Facility in the United States
Jul 21, 2026
Closed $30.51 (-2.4%) on Jul 21, 2026
U.S. EPA Office of Water Awards Tetra Tech $25 Million Water Quality and Ecological Monitoring Contract
Jul 16, 2026
Closed $32.03 (+2.2%) on Jul 16, 2026
Decks
Q3 2026 Earnings Presentation
Earnings · 15 slides · Jul 30, 2026
Q2 2026 Earnings Presentation
Earnings · 19 slides · Apr 30, 2026
Q1 2026 Earnings Presentation
Earnings · 18 slides · Jan 29, 2026
Q4 2025 Earnings Presentation
Earnings · 21 slides · Nov 13, 2025
Tetra Tech, Inc. on 6ix
- Sector
- Industrials
- Industry
- Construction & engineering
- News releases
- 44 in the last 12 months · 235 in all · newest Oct 21, 2026 · oldest 2019
- Calls
- 24 calls with a replay · 24 with a transcript · latest Jul 30, 2026
- Decks
- 23 decks · latest Jul 30, 2026
Where Tetra Tech, Inc. is listed
| Listing | Exchange | Country | Currency |
|---|---|---|---|
| NASDAQ:TTEK · Home listing | NASDAQ | United States | USD |
| gettex:TT6 | gettex | Germany | EUR |
| LS Exchange:902888 | LS Exchange | Germany | EUR |
| Lang & Schwarz:902888 | Lang & Schwarz | Germany | EUR |
| Tradegate:TT6 | Tradegate | Germany | EUR |
| BMV:TTEK | BMV | Mexico | MXN |
| Milan:1TTEK | Milan | Italy | EUR |
| BIVA:TTEK | BIVA | Mexico | MXN |
| BX Swiss:TT6 | BX Swiss | Switzerland | CHF |
| BOATS:TTEK | BOATS | United States | USD |
| Dusseldorf:TT6 · This page | Dusseldorf | Germany | EUR |
| Frankfurt:TT6 | Frankfurt | Germany | EUR |
| Hamburg:TT6 | Hamburg | Germany | EUR |
| Munich:TT6 | Munich | Germany | EUR |
| Stuttgart:TT6 | Stuttgart | Germany | EUR |
| Hanover:TT6 | Hanover | Germany | EUR |
| Xetra:TT6 | Xetra | Germany | EUR |
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