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ACM or KBR or TTEK
Which Stock Would AI Choose? AECOM (ACM) vs. KBR, Inc. (KBR) vs. Tetra Tech, Inc. (TTEK) Stock Comparison
Key Takeaways
- ACM exhibits the largest market capitalization at approximately $10.4 billion, reflecting its scale in infrastructure consulting, though it trades at a higher trailing P/E ratio of around 18 amid recent price declines.
- KBR offers the lowest valuation with a trailing P/E of about 9.6 and a market cap of $4.1 billion, supported by government contracts but pressured by revenue dips in recent quarters.
- TTEK demonstrates the strongest recent earnings momentum, with Q2 fiscal 2026 net revenue up 8% year-over-year excluding certain factors and raised full-year guidance, at a P/E of roughly 18 and $7.9 billion market cap.
- All three stocks operate in engineering and consulting, with YTD declines (ACM -15%, KBR -19%, TTEK -10%), underperforming the S&P 500's gains, amid broader sector volatility.
- KBR and ACM show robust backlogs from defense and infrastructure wins, while TTEK benefits from water and environmental demand.
- Relative performance highlights TTEK's margin expansion and backlog growth as key positives in recent market activity.
Introduction
This stock comparison evaluates ACM (AECOM), KBR (KBR, Inc.), and TTEK (Tetra Tech, Inc.), three leaders in engineering, consulting, and infrastructure services. These firms serve overlapping sectors like government contracts, environmental remediation, and sustainable projects, making them relevant for investors tracking industrials amid infrastructure spending and energy transitions. Traders focused on relative performance, valuation sensitivity, and momentum in a volatile market may find insights into sector rotation and risk-reward trade-offs here, particularly as recent earnings reveal contrasts in growth drivers and sentiment shifts.
AECOM Overview and Recent Performance
AECOM (ACM), a multinational infrastructure consulting firm, delivers advisory, planning, design, construction management, and environmental services across transportation, water, energy, and facilities markets. With about 51,000 employees, it operates in Americas, International, and Capital segments. In recent market activity, ACM's stock has faced downward pressure, declining around 15% YTD and 22% over the past year, trading near $80.50 with a market cap of $10.4 billion. Q1 fiscal 2026 results showed revenue of $3.83 billion beating estimates despite a 4.6% year-over-year drop, but EPS of $1.07 missed expectations amid margin contraction to 3.7%. Sentiment reflects broader construction sector challenges, offset by contracts like USACE environmental services and fusion energy consortium involvement, supporting a trailing P/E of approximately 18.
KBR Overview and Recent Performance
KBR, Inc. (KBR) specializes in science, technology, and engineering solutions for governments and commercial clients, segmented into Mission Technology Solutions (defense, intelligence, space) and Sustainable Technology Solutions (emissions reduction, energy transition). Employing around 36,000 people, it focuses on R&D, systems engineering, and proprietary process technologies. Recent weeks have seen KBR stock slide about 19% YTD and 40% over the past year to roughly $32.50, with a $4.1 billion market cap. Q1 fiscal 2026 revenue fell 4.7% to $1.92 billion, beating estimates, but EPS of $0.81 missed amid lower activity in Europe and mix shifts; adjusted EBITDA margin held at 13.1%. Positive catalysts include $449 million Army LOGCAP extension and AI-driven defense contracts worth $1.15 billion, bolstering a low trailing P/E near 9.6.
Tetra Tech Overview and Recent Performance
Tetra Tech, Inc. (TTEK) leads in high-end consulting and engineering for water, environment, and sustainable infrastructure, serving U.S. and international clients through Government Services Group and Commercial/International segments. With over 25,000 employees across 500 offices, it emphasizes resilient infrastructure. In recent market activity, TTEK stock dipped about 10% YTD and 13% yearly to around $30.30, holding a $7.9 billion market cap. Q2 fiscal 2026 delivered strong results with $1.22 billion revenue (net $1.05 billion, up 8% excluding USAID/DOS and disasters), EBITDA of $146 million (margin up 90 basis points), and backlog at $4.28 billion, prompting raised FY2026 guidance. Wins in wastewater frameworks and water contracts have driven sentiment, with a trailing P/E of about 18.
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Head-to-Head Comparison
ACM, KBR, and TTEK share engineering consulting models but diverge in focus: ACM's broad infrastructure scale contrasts KBR's defense-heavy government exposure (e.g., LOGCAP, AI contracts) and TTEK's water/environment niche. Growth drivers include TTEK's 8% net revenue rise and backlog expansion versus ACM and KBR's revenue softness. Recent momentum favors TTEK's beats and guidance lift, while all lag S&P 500 YTD. Risks: KBR's spin-off transition costs ($140-180 million); ACM's EPS misses; sector cyclicality. KBR appears cheapest (P/E ~9.6), ACM largest ($10.4B cap), with sentiment buoyed by backlogs but sensitive to federal spending and energy shifts.
Tickeron AI Verdict
Tickeron’s AI would currently lean toward TTEK, given its consistent trend strength, margin gains, backlog growth to $4.28 billion, and raised FY2026 outlook amid resilient demand in water and infrastructure. Relative to peers' revenue pressures and larger YTD declines, TTEK shows superior stability and catalysts, though KBR's valuation offers appeal if defense awards accelerate. Outcomes depend on execution and macro factors.
Disclaimer
The information on this webpage is provided for general informational and educational purposes only and is not intended as investment advice, a recommendation to purchase or sell any security, or an offer or solicitation related to investments. It does not consider your personal financial situation, goals, or risk profile, and all investing carries inherent risks, including the possibility of losing your entire investment. For more details, please review our full disclaimer. Disclaimers and Limitations
Long-Term Analysis
It is best to consider a long-term outlook for a ticker by using Fundamental Analysis (FA) ratings. The rating of 1 to 100, where 1 is best and 100 is worst, is divided into thirds. The first third (a green rating of 1-33) indicates that the ticker is undervalued; the second third (a grey number between 34 and 66) means that the ticker is valued fairly; and the last third (red number of 67 to 100) reflects that the ticker is undervalued. We use an FA Score to show how many ratings show the ticker to be undervalued (green) or overvalued (red).
ACM’s FA Score shows that 1 FA rating(s) are green whileKBR’s FA Score has 1 green FA rating(s), and TTEK’s FA Score reflects 0 green FA rating(s).
- ACM’s FA Score: 1 green, 4 red.
- KBR’s FA Score: 1 green, 4 red.
- TTEK’s FA Score: 0 green, 5 red.
Short-Term Analysis
It is best to consider a short-term outlook for a ticker by using Technical Analysis (TA) indicators. We use Odds of Success as the percentage of outcomes which confirm successful trade signals in the past.
If the Odds of Success (the likelihood of the continuation of a trend) for each indicator are greater than 50%, then the generated signal is confirmed. A green percentage from 90% to 51% indicates that the ticker is in a bullish trend. A red percentage from 90% - 51% indicates that the ticker is in a bearish trend. All grey percentages are below 50% and are considered not to confirm the trend signal.
ACM’s TA Score shows that 6 TA indicator(s) are bullish while KBR’s TA Score has 7 bullish TA indicator(s), and TTEK’s TA Score reflects 6 bullish TA indicator(s).
- ACM’s TA Score: 6 bullish, 2 bearish.
- KBR’s TA Score: 7 bullish, 3 bearish.
- TTEK’s TA Score: 6 bullish, 2 bearish.
Price Growth
ACM (@Engineering & Construction) experienced а -1.43% price change this week, while KBR (@Engineering & Construction) price change was +0.79% , and TTEK (@Engineering & Construction) price fluctuated +1.90% for the same time period.
The average weekly price growth across all stocks in the @Engineering & Construction industry was +1.83%. For the same industry, the average monthly price growth was +0.46%, and the average quarterly price growth was +17.72%.
Reported Earning Dates
ACM is expected to report earnings on Aug 10, 2026.
KBR is expected to report earnings on Jul 23, 2026.
TTEK is expected to report earnings on Aug 05, 2026.
Industries' Descriptions
@Engineering & Construction (+1.83% weekly)Engineering & Construction includes companies that engage in non-residential construction and contract services, including ventilation, heating and air conditioning (HVAC) services. The level/value of construction & engineering activity is one of the potentially relevant indicators of the health of businesses, and hence of the overall economy. Some of the large-cap U.S. companies in this industry include Jacobs Engineering Group Inc,, AECOM and Quanta Services, Inc.
| ACM | KBR | TTEK | |
| Capitalization | 9.01B | 4.54B | 7.38B |
| EBITDA | 1.3B | 916M | 698M |
| Gain YTD | -25.945 | -10.444 | -14.872 |
| P/E Ratio | 14.64 | 10.57 | 17.02 |
| Revenue | 16B | 7.69B | 5.13B |
| Total Cash | 1.03B | 321M | 224M |
| Total Debt | 3.22B | 2.81B | 1.11B |
ACM | KBR | TTEK | ||
|---|---|---|---|---|
OUTLOOK RATING 1..100 | 6 | 38 | 11 | |
VALUATION overvalued / fair valued / undervalued 1..100 | 30 Undervalued | 29 Undervalued | 38 Fair valued | |
PROFIT vs RISK RATING 1..100 | 92 | 100 | 81 | |
SMR RATING 1..100 | 43 | 36 | 37 | |
PRICE GROWTH RATING 1..100 | 76 | 57 | 61 | |
P/E GROWTH RATING 1..100 | 88 | 90 | 98 | |
SEASONALITY SCORE 1..100 | 50 | 50 | 65 |
Tickeron ratings are formulated such that a rating of 1 designates the most successful stocks in a given industry, while a rating of 100 points to the least successful stocks for that industry.
KBR's Valuation (29) in the Engineering And Construction industry is in the same range as ACM (30) in the Engineering And Construction industry, and is in the same range as TTEK (38) in the Environmental Services industry. This means that KBR's stock grew similarly to ACM’s and similarly to TTEK’s over the last 12 months.
TTEK's Profit vs Risk Rating (81) in the Environmental Services industry is in the same range as ACM (92) in the Engineering And Construction industry, and is in the same range as KBR (100) in the Engineering And Construction industry. This means that TTEK's stock grew similarly to ACM’s and similarly to KBR’s over the last 12 months.
KBR's SMR Rating (36) in the Engineering And Construction industry is in the same range as TTEK (37) in the Environmental Services industry, and is in the same range as ACM (43) in the Engineering And Construction industry. This means that KBR's stock grew similarly to TTEK’s and similarly to ACM’s over the last 12 months.
KBR's Price Growth Rating (57) in the Engineering And Construction industry is in the same range as TTEK (61) in the Environmental Services industry, and is in the same range as ACM (76) in the Engineering And Construction industry. This means that KBR's stock grew similarly to TTEK’s and similarly to ACM’s over the last 12 months.
ACM's P/E Growth Rating (88) in the Engineering And Construction industry is in the same range as KBR (90) in the Engineering And Construction industry, and is in the same range as TTEK (98) in the Environmental Services industry. This means that ACM's stock grew similarly to KBR’s and similarly to TTEK’s over the last 12 months.
| ACM | KBR | TTEK | |
|---|---|---|---|
| RSI ODDS (%) | 3 days ago 69% | 3 days ago 87% | 3 days ago 79% |
| Stochastic ODDS (%) | 3 days ago 62% | 3 days ago 68% | 3 days ago 52% |
| Momentum ODDS (%) | 3 days ago 56% | 3 days ago 55% | 3 days ago 65% |
| MACD ODDS (%) | 3 days ago 46% | 3 days ago 75% | 3 days ago 79% |
| TrendWeek ODDS (%) | 3 days ago 57% | 3 days ago 61% | 3 days ago 67% |
| TrendMonth ODDS (%) | 3 days ago 61% | 3 days ago 59% | 3 days ago 64% |
| Advances ODDS (%) | 3 days ago 54% | 3 days ago 59% | 3 days ago 64% |
| Declines ODDS (%) | 7 days ago 57% | 7 days ago 64% | 7 days ago 61% |
| BollingerBands ODDS (%) | 3 days ago 61% | 7 days ago 71% | 7 days ago 70% |
| Aroon ODDS (%) | 3 days ago 62% | 3 days ago 57% | 5 days ago 56% |
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ACM and
Correlation & Price change
A.I.dvisor indicates that over the last year, ACM has been loosely correlated with J. These tickers have moved in lockstep 63% of the time. This A.I.-generated data suggests there is some statistical probability that if ACM jumps, then J could also see price increases.
| Ticker / NAME | Correlation To ACM | 1D Price Change % | ||
|---|---|---|---|---|
| ACM | 100% | +0.76% | ||
| J - ACM | 63% Loosely correlated | +0.55% | ||
| STN - ACM | 55% Loosely correlated | +0.33% | ||
| TTEK - ACM | 51% Loosely correlated | +1.83% | ||
| EXPO - ACM | 43% Loosely correlated | +0.81% | ||
| KBR - ACM | 39% Loosely correlated | +1.36% | ||
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KBR and
Correlation & Price change
A.I.dvisor indicates that over the last year, KBR has been loosely correlated with J. These tickers have moved in lockstep 54% of the time. This A.I.-generated data suggests there is some statistical probability that if KBR jumps, then J could also see price increases.
| Ticker / NAME | Correlation To KBR | 1D Price Change % | ||
|---|---|---|---|---|
| KBR | 100% | +1.36% | ||
| J - KBR | 54% Loosely correlated | +0.55% | ||
| EXPO - KBR | 49% Loosely correlated | +0.81% | ||
| TTEK - KBR | 47% Loosely correlated | +1.83% | ||
| ACM - KBR | 38% Loosely correlated | +0.76% | ||
| STN - KBR | 30% Poorly correlated | +0.33% | ||
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TTEK and
Correlation & Price change
A.I.dvisor indicates that over the last year, TTEK has been loosely correlated with ACM. These tickers have moved in lockstep 51% of the time. This A.I.-generated data suggests there is some statistical probability that if TTEK jumps, then ACM could also see price increases.
| Ticker / NAME | Correlation To TTEK | 1D Price Change % | ||
|---|---|---|---|---|
| TTEK | 100% | +1.83% | ||
| ACM - TTEK | 51% Loosely correlated | +0.76% | ||
| J - TTEK | 47% Loosely correlated | +0.55% | ||
| KBR - TTEK | 47% Loosely correlated | +1.36% | ||
| STN - TTEK | 45% Loosely correlated | +0.33% | ||
| EXPO - TTEK | 40% Loosely correlated | +0.81% | ||
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