As of March 5, 2026, Tetra Tech had a market cap of $9.163 billion, which decreased by 2.84% compared to the previous trading day. Market capitalization, often referred to as market cap, represents the total value of a company's outstanding shares on the stock market and is a common measure of its overall size and valuation.
Data updated: Mar 5, 2026, 4:00 PM ET
Tetra Tech Inc. (TTEK)
🌍 United States📈 NASDAQ🏭 Industrials🏢 Commercial Services & Supplies
Note: Each point on the chart represents the market capitalization at the end of the trading day. Source: Data compiled from EDGAR filings, Bloomberg and Yahoo Finance.
📈 Tetra Tech Market Cap History by Year and Month
Tetra Tech Market Cap History by Year and Month
Year / Month
Market Cap
% Change
2026
$9.163B
▲ 4.74%
$9.163B
▼ 1.97%
$9.347B
▼ 4.84%
$9.822B
▲ 12.28%
2025
$8.748B
▼ 18.07%
$8.748B
▼ 3.45%
$9.061B
▲ 7.83%
$8.403B
▼ 4.20%
$8.771B
▼ 8.35%
$9.57B
▼ 0.87%
$9.654B
▲ 1.88%
$9.476B
▲ 2.92%
$9.207B
▲ 12.02%
$8.219B
▲ 6.64%
$7.707B
▼ 1.50%
$7.824B
▼ 20.68%
$9.864B
▼ 7.62%
2024
$10.678B
▲ 20.13%
$10.678B
▼ 3.92%
$11.114B
▼ 15.07%
$13.086B
▲ 3.64%
$12.626B
▼ 0.79%
$12.727B
▲ 11.49%
$11.415B
▲ 4.35%
$10.939B
▼ 2.39%
$11.207B
▲ 7.58%
$10.417B
▲ 5.48%
$9.876B
▲ 4.17%
$9.481B
▲ 12.11%
$8.457B
▼ 4.86%
2023
$8.889B
▲ 15.56%
$8.889B
▲ 5.56%
$8.421B
▲ 4.79%
$8.036B
▼ 0.73%
$8.095B
▼ 3.38%
$8.378B
▼ 7.01%
$9.01B
▲ 3.37%
$8.716B
▲ 19.10%
$7.318B
▼ 0.64%
$7.365B
▼ 5.81%
$7.819B
▲ 7.32%
$7.286B
▼ 11.98%
$8.278B
▲ 7.62%
2022
$7.692B
▼ 15.93%
$7.692B
▼ 6.08%
$8.19B
▲ 9.42%
$7.485B
▲ 9.22%
$6.853B
▼ 5.36%
$7.241B
▼ 11.39%
$8.172B
▲ 11.47%
$7.331B
▲ 1.17%
$7.246B
▼ 3.09%
$7.477B
▼ 16.05%
$8.907B
▲ 3.88%
$8.574B
▲ 14.08%
$7.516B
▼ 17.86%
2021
$9.15B
▲ 45.84%
$9.15B
▼ 8.06%
$9.952B
▲ 4.96%
$9.482B
▲ 17.42%
$8.075B
▲ 3.82%
$7.778B
▲ 7.73%
$7.22B
▲ 9.41%
$6.599B
▲ 1.99%
$6.47B
▼ 6.39%
$6.912B
▼ 5.96%
$7.35B
▼ 2.05%
$7.504B
▲ 13.83%
$6.592B
▲ 5.07%
2020
$6.274B
▲ 33.06%
$6.274B
▼ 2.17%
$6.413B
▲ 18.12%
$5.429B
▲ 5.66%
$5.138B
▲ 3.30%
$4.974B
▲ 4.12%
$4.777B
▲ 12.03%
$4.264B
▲ 0.02%
$4.263B
▲ 4.82%
$4.067B
▲ 6.35%
$3.824B
▼ 13.52%
$4.422B
▼ 5.53%
$4.681B
▼ 0.72%
2019
$4.715B
▲ 64.63%
$4.715B
▼ 2.18%
$4.82B
▲ 0.98%
$4.773B
▲ 0.82%
$4.734B
▲ 6.79%
$4.433B
▲ 2.43%
$4.328B
▲ 0.42%
$4.31B
▲ 16.33%
$3.705B
▲ 4.34%
$3.551B
▲ 7.93%
$3.29B
▼ 0.72%
$3.314B
▲ 8.76%
$3.047B
▲ 6.39%
2018
$2.864B
▲ 6.43%
$2.864B
▼ 15.14%
$3.375B
▼ 7.66%
$3.655B
▼ 3.28%
$3.779B
▼ 2.15%
$3.862B
▲ 14.80%
$3.364B
▲ 3.38%
$3.254B
▲ 6.48%
$3.056B
▲ 13.52%
$2.692B
▼ 1.54%
$2.734B
— 0.00%
$2.734B
▼ 1.51%
$2.776B
▲ 3.16%
2017
$2.691B
▲ 9.04%
$2.691B
▼ 3.41%
$2.786B
▲ 1.24%
$2.752B
▲ 4.56%
$2.632B
▲ 9.26%
$2.409B
▼ 10.21%
$2.683B
▲ 2.60%
$2.615B
▼ 0.42%
$2.626B
▲ 4.46%
$2.514B
▲ 7.39%
$2.341B
▲ 1.47%
$2.307B
▼ 7.90%
$2.505B
▲ 1.50%
2016
$2.468B
▲ 60.99%
$2.468B
▲ 0.94%
$2.445B
▲ 11.49%
$2.193B
▲ 7.66%
$2.037B
▲ 0.49%
$2.027B
▲ 7.19%
$1.891B
▲ 6.90%
$1.769B
▼ 0.23%
$1.773B
▲ 4.11%
$1.703B
▼ 1.67%
$1.732B
▲ 7.31%
$1.614B
▲ 3.93%
$1.553B
▲ 1.30%
2015
$1.533B
▼ 7.65%
$1.533B
▼ 6.52%
$1.64B
▲ 2.69%
$1.597B
▲ 10.60%
$1.444B
▼ 7.67%
$1.564B
▼ 2.49%
$1.604B
▲ 3.95%
$1.543B
▼ 2.09%
$1.576B
▼ 3.55%
$1.634B
▲ 12.77%
$1.449B
▼ 7.59%
$1.568B
▲ 10.42%
$1.42B
▼ 14.46%
2014
$1.66B
▼ 8.34%
$1.66B
▼ 2.47%
$1.702B
▲ 1.43%
$1.678B
▲ 7.29%
$1.564B
▼ 4.52%
$1.638B
▲ 5.00%
$1.56B
▼ 11.86%
$1.77B
▲ 2.37%
$1.729B
▼ 7.14%
$1.862B
▼ 3.27%
$1.925B
▲ 2.61%
$1.876B
▼ 2.14%
$1.917B
▲ 5.85%
2013
$1.811B
▲ 6.28%
$1.811B
▼ 1.25%
$1.834B
▲ 9.43%
$1.676B
▲ 0.96%
$1.66B
▲ 13.00%
$1.469B
▼ 3.92%
$1.529B
▲ 0.20%
$1.526B
▼ 14.75%
$1.79B
▲ 4.86%
$1.707B
▼ 13.22%
$1.967B
▲ 5.64%
$1.862B
▲ 0.70%
$1.849B
▲ 8.51%
2012
$1.704B
▲ 25.94%
$1.704B
▲ 3.59%
$1.645B
▼ 0.60%
$1.655B
▼ 1.02%
$1.672B
▲ 1.27%
$1.651B
▲ 0.92%
$1.636B
▼ 1.09%
$1.654B
▲ 4.35%
$1.585B
▼ 6.43%
$1.694B
▲ 1.80%
$1.664B
▲ 7.29%
$1.551B
▲ 6.23%
$1.46B
▲ 7.91%
2011
$1.353B
▼ 12.71%
$1.353B
▼ 3.36%
$1.4B
▲ 2.79%
$1.362B
▲ 16.31%
$1.171B
▼ 5.87%
$1.244B
▼ 9.46%
$1.374B
▼ 2.07%
$1.403B
▼ 7.51%
$1.517B
▲ 3.06%
$1.472B
▼ 4.29%
$1.538B
▲ 5.05%
$1.464B
▲ 1.53%
$1.442B
▼ 6.97%
2010
$1.55B
▼ 7.13%
$1.55B
▲ 8.62%
$1.427B
▲ 9.68%
$1.301B
▲ 0.46%
$1.295B
▲ 15.52%
$1.121B
▼ 13.44%
$1.295B
▲ 6.94%
$1.211B
▼ 13.44%
$1.399B
▼ 7.04%
$1.505B
▲ 5.84%
$1.422B
▲ 10.23%
$1.29B
▼ 7.59%
$1.396B
▼ 16.36%
2009
$1.669B
▲ 15.42%
$1.669B
▲ 3.41%
$1.614B
▲ 2.41%
$1.576B
▼ 3.02%
$1.625B
▼ 9.17%
$1.789B
▼ 1.92%
$1.824B
▲ 5.31%
$1.732B
▲ 12.03%
$1.546B
▲ 4.53%
$1.479B
▲ 20.64%
$1.226B
▼ 9.05%
$1.348B
▼ 3.58%
$1.398B
▼ 3.32%
2008
$1.446B
▲ 14.94%
$1.446B
▲ 20.50%
$1.2B
▼ 8.88%
$1.317B
▼ 8.61%
$1.441B
▼ 15.19%
$1.699B
▼ 0.53%
$1.708B
▲ 27.08%
$1.344B
▼ 13.62%
$1.556B
▲ 25.18%
$1.243B
▲ 8.37%
$1.147B
▲ 3.43%
$1.109B
▼ 4.15%
$1.157B
▼ 8.03%
2007
$1.258B
▲ 20.50%
$1.258B
▲ 3.88%
$1.211B
▼ 11.15%
$1.363B
▲ 10.63%
$1.232B
▲ 7.69%
$1.144B
▼ 6.76%
$1.227B
▼ 2.00%
$1.252B
▼ 2.34%
$1.282B
▲ 5.95%
$1.21B
▲ 9.50%
$1.105B
▲ 6.97%
$1.033B
▼ 0.86%
$1.042B
▼ 0.19%
2006
$1.044B
▲ 16.65%
$1.044B
▲ 3.78%
$1.006B
▼ 4.10%
$1.049B
▲ 4.48%
$1.004B
▲ 4.91%
$0.957B
▲ 3.57%
$0.924B
▼ 9.59%
$1.022B
▲ 1.19%
$1.01B
▼ 9.34%
$1.114B
▲ 1.74%
$1.095B
▲ 7.46%
$1.019B
▲ 7.04%
$0.952B
▲ 6.37%
2005
$0.895B
▼ 5.29%
$0.895B
▲ 0.56%
$0.89B
▲ 1.02%
$0.881B
▼ 8.23%
$0.96B
▲ 6.79%
$0.899B
▲ 4.90%
$0.857B
▲ 11.15%
$0.771B
▲ 12.88%
$0.683B
▲ 13.83%
$0.6B
▼ 16.20%
$0.716B
▼ 23.59%
$0.937B
▲ 11.95%
$0.837B
▼ 11.43%
2004
$0.945B
▼ 30.21%
$0.945B
▲ 10.14%
$0.858B
▲ 15.95%
$0.74B
▲ 3.79%
$0.713B
▼ 28.63%
$0.999B
▲ 10.02%
$0.908B
▼ 0.98%
$0.917B
▼ 3.27%
$0.948B
▲ 3.95%
$0.912B
▼ 22.51%
$1.177B
▲ 1.12%
$1.164B
▼ 2.35%
$1.192B
▼ 11.96%
2003
$1.354B
▲ 107.99%
$1.354B
▼ 1.81%
$1.379B
▲ 13.69%
$1.213B
▲ 12.21%
$1.081B
▲ 4.95%
$1.03B
▲ 19.08%
$0.865B
▼ 6.59%
$0.926B
▲ 2.21%
$0.906B
▲ 9.69%
$0.826B
▲ 9.40%
$0.755B
▲ 7.55%
$0.702B
▲ 2.48%
$0.685B
▲ 5.22%
2002
$0.651B
▼ 37.58%
$0.651B
▼ 1.51%
$0.661B
▲ 39.75%
$0.473B
▲ 11.03%
$0.426B
▼ 11.98%
$0.484B
▲ 4.31%
$0.464B
▼ 40.36%
$0.778B
▲ 1.70%
$0.765B
▲ 1.59%
$0.753B
▲ 0.53%
$0.749B
▼ 20.57%
$0.943B
▲ 5.36%
$0.895B
▼ 14.19%
2001
$1.043B
▼ 18.07%
$1.043B
▼ 1.32%
$1.057B
▼ 2.31%
$1.082B
▲ 17.61%
$0.92B
▼ 7.82%
$0.998B
▲ 5.72%
$0.944B
▼ 14.65%
$1.106B
▼ 5.71%
$1.173B
▲ 18.37%
$0.991B
▲ 21.30%
$0.817B
▲ 16.88%
$0.699B
▼ 24.76%
$0.929B
▼ 27.02%
2000
$1.273B
▲ 115.40%
$1.273B
▼ 8.55%
$1.392B
▲ 0.58%
$1.384B
▲ 22.05%
$1.134B
▲ 5.29%
$1.077B
▲ 8.46%
$0.993B
▲ 9.60%
$0.906B
▲ 5.23%
$0.861B
▼ 5.49%
$0.911B
▼ 0.76%
$0.918B
▼ 4.87%
$0.965B
▲ 70.19%
$0.567B
▼ 4.06%
1999
$0.591B
▼ 23.84%
$0.591B
▲ 35.24%
$0.437B
▼ 28.36%
$0.61B
▼ 4.84%
$0.641B
▲ 4.74%
$0.612B
▲ 1.16%
$0.605B
▼ 3.82%
$0.629B
▼ 1.56%
$0.639B
▼ 12.10%
$0.727B
▲ 14.85%
$0.633B
▲ 15.72%
$0.547B
▼ 22.19%
$0.703B
▼ 9.41%
1998
$0.776B
▲ 74.38%
$0.776B
▲ 29.12%
$0.601B
▲ 3.26%
$0.582B
▼ 9.63%
$0.644B
▲ 36.44%
$0.472B
▼ 2.88%
$0.486B
▼ 11.48%
$0.549B
▲ 11.13%
$0.494B
▼ 9.19%
$0.544B
— 0.00%
$0.544B
▲ 9.68%
$0.496B
▲ 4.86%
$0.473B
▲ 6.29%
1997
$0.445B
▲ 58.36%
$0.445B
▲ 4.95%
$0.424B
▼ 2.08%
$0.433B
▲ 6.65%
$0.406B
▲ 7.41%
$0.378B
▼ 5.74%
$0.401B
▲ 2.30%
$0.392B
▲ 35.64%
$0.289B
▲ 40.29%
$0.206B
▼ 2.37%
$0.211B
▲ 9.90%
$0.192B
▼ 26.15%
$0.26B
▼ 7.47%
1996
$0.281B
▲ 16.60%
$0.281B
▲ 6.84%
$0.263B
▼ 16.24%
$0.314B
▼ 6.55%
$0.336B
▲ 23.08%
$0.273B
▲ 6.64%
$0.256B
▼ 9.22%
$0.282B
▼ 0.35%
$0.283B
▲ 15.51%
$0.245B
▼ 1.61%
$0.249B
▲ 8.73%
$0.229B
— 0.00%
$0.229B
▼ 4.98%
1995
$0.241B
▲ 61.74%
$0.241B
▼ 3.98%
$0.251B
▲ 9.13%
$0.23B
▼ 6.50%
$0.246B
▲ 12.33%
$0.219B
▼ 4.78%
$0.23B
▲ 22.34%
$0.188B
▼ 1.05%
$0.19B
▲ 10.47%
$0.172B
▲ 4.88%
$0.164B
▲ 2.50%
$0.16B
▲ 7.38%
$0.149B
— 0.00%
1994
$0.149B
▲ 13.74%
$0.149B
▼ 2.61%
$0.153B
▼ 4.38%
$0.16B
▼ 0.62%
$0.161B
▲ 3.21%
$0.156B
▲ 28.93%
$0.121B
▼ 2.42%
$0.124B
▼ 5.34%
$0.131B
▼ 3.68%
$0.136B
▲ 12.40%
$0.121B
▼ 0.82%
$0.122B
▼ 8.96%
$0.134B
▲ 2.29%
1993
$0.131B
▲ 75.03%
$0.131B
▲ 21.30%
$0.108B
▲ 0.93%
$0.107B
▲ 3.88%
$0.103B
▲ 34.45%
$76.61M
▼ 14.71%
$89.819M
▲ 6.25%
$84.536M
▼ 10.86%
$94.837M
▼ 2.70%
$97.471M
▲ 2.78%
$94.837M
▲ 0.31%
$94.541M
▲ 4.35%
$90.602M
▲ 21.05%
1992
$74.845M
▲ 20.43%
$74.845M
▼ 10.88%
$83.983M
▲ 11.11%
$75.585M
▲ 5.88%
$71.385M
▼ 2.60%
$73.292M
▲ 1.45%
$72.245M
▲ 15.00%
$62.822M
▼ 1.54%
$63.804M
▲ 1.67%
$62.758M
▲ 3.45%
$60.666M
▼ 15.11%
$71.467M
▲ 1.47%
$70.432M
▲ 13.33%
1991
$62.146M
— 0.00%
$62.146M
— 0.00%
All market cap values reflect closing prices for the period shown.
📊 Tetra Tech Market Cap and Other Industry Peers
Below are selected companies from the Industrials sector / subsector:
Data reflect the most recent market capitalization values available.
💡 What Is Market Capitalization and How Do We Calculate It?
For Tetra Tech Inc. (TTEK), market capitalization represents the total market value of the company’s publicly traded shares. It helps investors understand Tetra Tech’s size within the industrials sector and compare it with other companies in the same industry.
In most cases, market capitalization is calculated by multiplying the current share price by the number of basic shares outstanding. Basic shares represent the actual number of common shares that currently exist, without including potential future shares from employee stock options, RSUs, warrants, or convertible securities. For example, if Tetra Tech had one million basic shares and each traded at $50, its market capitalization would be $50 million.
Formula: Market Cap = Share Price × Shares Outstanding
The value of Tetra Tech’s market capitalization changes throughout the trading day because it mainly depends on the current share price. The number of shares outstanding typically remains stable unless the company issues new shares, buys back its own stock, or grants stock options to employees.
Based on the latest data, Tetra Tech had a market capitalization of $9.163 billion, placing it in the mid-cap category within the industrials industry.
Disclaimer: Despite all efforts, there may still be minor inaccuracies present in the data.
