Tetra Tech, Inc.
TTEK rates a BUY because the stock is pricing a profit slump that FY26 guidance, an 8% sequential backlog jump to $4.28B, and improving contract mix suggest is already turning.
The market is still valuing TTEK as if FY2025 is the right earnings base. It probably is not. FY2025 was ugly, EPS fell 35.5% to $0.94 and operating margin dropped from 9.6% to 6.1%, which explains why the stock is stuck 28.2% below the 52-week high and below its 200-day average. But the latest operating data point in a different direction. Management just raised FY26 guidance to $4.25B-$4.40B of revenue and $1.50-$1.58 of adjusted EPS, backlog rose 8% sequentially to $4.28B, and operating cash flow hit a record $238M in the first half. That is a real recovery setup, not just a cheap stock on trailing numbers.
The first thing the case depends on is margin repair. The company does not need to get back to the 2024 peak immediately for the stock to work. It only needs to prove that the FY2025 trough is behind it. Fixed-price work has risen to 48% YTD, DSO improved to 58 days, and management explicitly tied higher fixed-price mix to better margins and lower working capital needs. If that mix shift sticks, the earnings power of the business is meaningfully better than the trailing 18.44x multiple implies.
The second thing the case depends on is the quality of demand. The encouraging part is that growth is not coming from a single hot pocket. Water, environment, sustainable infrastructure, defense capacity, and international awards all helped offset a 2% YoY decline in U.S. commercial tied to offshore wind wind-downs. The additional $650M+ of defense contract capacity matters because it improves visibility and raises the odds that backlog converts into cleaner revenue. The less encouraging part is that state and local growth guidance was cut to 5%-10%, and current backlog still sits below the $5.23B level cited on the 2024 Q3 call.
The reason conviction stays low is simple. This is a recovery thesis, not a pristine compounder thesis. Debt is $1.1B, leverage is 2.33x debt/EBITDA, and Q2 EBITDA margin of 12.3% still slipped both sequentially and year over year. July 29 has to confirm that the raised guide is backed by execution, not just optimism. If it does, the discount to peers and the stock's depressed 52-week position leave room for a meaningful move higher.
Defense and water demand sustain double-digit growth, fixed-price mix lifts margins faster than expected, and the stock closes much of the gap to higher-quality peers.
Management delivers the guided $1.50-$1.58 EPS recovery and backlog converts cleanly enough for a partial rerating from the current discount.
Margin rebuild stalls, FY26 EPS ends near the low end or below guide, and the market keeps valuing TTEK on depressed profitability rather than backlog.
No analyst coverage available to cross-check.
Never, ever invest in the present.
FY26 earnings power is the real debate. Against FY2025 EPS of $0.94, management's $1.50-$1.58 adjusted EPS guide points to a materially lower forward P/E than the trailing 18.44x, which is why the stock can work even without a full return to old margins. The moat looks intact today and likely firmer in 3-5 years if the business keeps shifting toward higher-value consulting, defense, water, and fixed-price work, but it is not a software-like moat and margin durability still has to be re-earned. AI is more helper than threat here, it should improve engineering productivity, proposal work, and asset-management analytics, while regulation and infrastructure funding remain net positives for water, environmental, and defense demand. The weak point is that AI will not hide bad project mix, so the thesis still depends on contract selection and execution more than on technology alone.
- FY26 adjusted EPS guidance of $1.50-$1.58 implies a sharp earnings recovery versus FY2025 EPS of $0.94.
- Backlog increased 8% sequentially to $4.28B in Q2 FY26, with $650M+ of added U.S. defense contract capacity supporting second-half growth.
- The stock trades at 18.44x P/E and 1.64x P/S versus peer averages of 31.4x and 2.6x, while price is -28.2% below the 52-week high.
- Management raised FY26 guidance to $4.25B-$4.40B of net revenue and $1.50-$1.58 of adjusted EPS, with 9% net revenue growth and +70 bps margin expansion at the midpoint.
- Q2 FY26 execution improved, adjusted EPS was $0.34 versus the high end of guidance, operating cash flow reached a record $238M in 1H, and DSO improved to 58 days.
- Demand is broad enough to offset weak spots, Q2 net revenue grew 8% YoY, backlog reached $4.28B, and management lifted 2H growth outlook for both U.S. federal and U.S. commercial to 8%-12%.
- Mix is getting better, fixed-price work rose to 48% YTD, which management says carries higher margins and lower working capital needs, and defense capability expanded through Halvik and Providence acquisitions.
- FY2025 showed real deterioration, revenue grew only 5.1% while EPS fell 35.5% to $0.94 and operating margin compressed to 6.1% from 9.6%.
- Q2 EBITDA margin was only 12.3%, down 110 bps versus Q1 and 70 bps versus the prior year, showing the margin recovery is not yet linear.
- U.S. commercial revenue declined 2% YoY because offshore wind programs wound down, and state and local growth outlook was cut to 5%-10% due to caution on federal co-funding.
- Balance-sheet flexibility is adequate but not pristine, debt is $1.1B, debt-to-EBITDA is 2.33x, and FY2025 FCF was only $0.2B after the earnings reset.
| Metric | Value | Context |
|---|---|---|
| Current price | $30.98 | Reference price for target and scenario analysis |
| Quant price target | $40.68 | Ground-truth target, 31.3% upside, Low confidence |
| FY2025 revenue | $5.4B | 5.1% YoY growth, but profitability deteriorated |
| FY2025 EPS | $0.94 | -35.5% YoY, depressed base versus FY26 recovery guide |
| Operating margin | 6.1% | Down from 9.6% in the prior fiscal year |
| Valuation | P/E 18.44x | P/S 1.64x | P/B 4.32x | Below peer averages of 31.4x P/E and 2.6x P/S |
| FY26 guidance | Revenue $4.25B-$4.40B | Adjusted EPS $1.50-$1.58 | Raised guidance, midpoint implies 9% net revenue growth and +70 bps margin expansion |
| Backlog | $4.28B | 8% sequential increase in Q2 FY26, driven by defense and international water awards |
| Balance sheet | Debt $1.1B | Debt/EBITDA 2.33x | Debt/Equity 0.60x | Current ratio 1.25x | Manageable, but not loose enough to ignore execution risk |
| Cash generation | FCF $0.2B | 1H FY26 OCF $238M | FY2025 FCF modest, but first-half cash flow reached a record |
| Price action | -28.2% vs 52-week high | -5.5% vs 200-day average | Stock is off the highs despite recent guidance raise |
The biggest risk is that FY26 margin recovery disappoints again, because after FY2025 operating margin fell to 6.1% from 9.6%, even management's guided +70 bps improvement still leaves profitability well below the prior peak.
FY2026 Q3 results on July 29, 2026, especially whether adjusted EPS lands within the $0.38-$0.41 guide and backlog keeps building after the Q2 inflection.
Ownership is concentrated, the top three institutions hold 73.2%, while insider ownership is only 0.5%, so the stock will trade more on institutional conviction in the recovery than founder-style signaling. Short interest at 4.72% of shares, or 12.18M shares and 3.5 days to cover, is elevated enough to help on a clean beat but not high enough to be a core squeeze thesis. Options positioning is supportive, with a positive GEX regime and zero-gamma at $27.13, about 12.29% below spot, which suggests downside volatility may be less unstable unless the stock breaks materially lower.
Second-half FY26 growth outlook increased to 8%-12% and Q2 added $650M+ of defense contract capacity.
Revenue was down 2% YoY in Q2 due to offshore wind wind-downs, but management still raised 2H growth outlook to 8%-12%.
Growth outlook moderated to 5%-10%, though municipalities are still moving projects via rates, bonds, and funding restructurings.
International water awards helped drive the 8% sequential backlog increase to $4.28B.
Tetra Tech posted a solid Q2 beat and raised FY26 guidance on stronger backlog and margin expansion.
Execution is mixed but improving. On the current track record, TTEK beat EPS in 6 of the last 8 reported quarters, including +16.2% on 2025-07-30, +12.9% on 2026-01-28, and +9.7% on 2026-04-29, but there were also notable misses of -78.3% on 2024-05-01 and -5.4% on 2024-11-13. Against the 2024 Q3 call, management then raised FY24 revenue guidance to $4.27B-$4.32B and EPS to $6.23-$6.28, while citing record backlog of $5.23B and Q3 EBITDA margin of 13.3%. Since then, the business has clearly not sustained that profit level, FY2025 revenue was $5.4B but EPS fell to $0.94 and operating margin to 6.1%, with current backlog at $4.28B, below that earlier peak. The strategic direction has not changed much, higher-end consulting, water, federal, and mix improvement remain the playbook, and the latest Q2 FY26 data support renewed credibility because guidance was raised, cash flow was strong, and backlog inflected, but management still needs several more quarters to prove the FY2025 earnings damage was a detour rather than a reset.
Our adjusted earnings per share of $0.34 exceeded the high end of our guidance and was also the highest for any second quarter.
Our increased net revenue guidance is from $4.25 billion to $4.40 billion, and our increased adjusted earnings per share guidance is from $1.50 to $1.58.
As a result, we are increasing our forecasted growth rates for the second half of the year for both our U.S. federal and U.S. commercial client sectors to 8% to 12%.
I believe that Q2 represents an inflection point for Tetra Tech, Inc. in terms of our backlog, and we expect to see continued growth based on new orders through the rest of the fiscal year.
Our goal is to continue progressing our contract mix toward fixed price. Fixed-price work carries higher margins and lower working capital requirements, which we believe will be a financial and value benefit going forward.
TTEK's edge comes from long-standing client relationships in water, environmental remediation, and government services, plus the credentials and compliance history needed to win regulated work that is hard for new entrants to replicate quickly. That moat is strengthened by backlog, procurement know-how, and a shift toward higher-margin consulting and fixed-price contracts, now 48% YTD, which can improve both economics and customer stickiness. It is durable, but only if management keeps pruning lower-quality work, because the FY2025 margin drop showed returns are still sensitive to mix.
Capital deployment looks reasonable but not exceptional. FY2025 FCF was $0.2B, buybacks were $0.1B, dividends were $0.0B, and capex was effectively $0.0B, which fits an asset-light engineering model. The more important capital allocation question is M&A, and the Halvik and Providence deals appear strategically aligned with defense capability expansion rather than empire building, but leverage at 2.33x debt/EBITDA limits room for mistakes.
Rated BUY, Low conviction. TTEK is cheap enough and improving fast enough to own ahead of a likely earnings recovery, but the stock has earned skepticism after FY2025's margin collapse. The bet is that backlog growth, better contract mix, and stronger defense and water demand can lift FY26 earnings closer to management's $1.50-$1.58 guide than the market is discounting today. A clean Q3 on July 29 would strengthen the case materially. A miss on margins or a slowdown in backlog conversion would be the clearest reason to step aside.
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Executive Summary
BUY, Low conviction. Rated BUY, Low conviction. At $30.98, TTEK sits 28.2% below its 52-week high even as management raised FY26 guidance to $1.50-$1.58 of adjusted EPS and called Q2 an inflection point for backlog. The case is not clean, FY2025 margins fell hard and peer multiples are noisy, but the setup favors recovery if July 29 confirms the guided margin rebuild.
Investment Thesis
The market is still valuing TTEK as if FY2025 is the right earnings base. It probably is not. FY2025 was ugly, EPS fell 35.5% to $0.94 and operating margin dropped from 9.6% to 6.1%, which explains why the stock is stuck 28.2% below the 52-week high and below its 200-day average. But the latest operating data point in a different direction. Management just raised FY26 guidance to $4.25B-$4.40B of revenue and $1.50-$1.58 of adjusted EPS, backlog rose 8% sequentially to $4.28B, and operating cash flow hit a record $238M in the first half. That is a real recovery setup, not just a cheap stock on trailing numbers.
The first thing the case depends on is margin repair. The company does not need to get back to the 2024 peak immediately for the stock to work. It only needs to prove that the FY2025 trough is behind it. Fixed-price work has risen to 48% YTD, DSO improved to 58 days, and management explicitly tied higher fixed-price mix to better margins and lower working capital needs. If that mix shift sticks, the earnings power of the business is meaningfully better than the trailing 18.44x multiple implies.
The second thing the case depends on is the quality of demand. The encouraging part is that growth is not coming from a single hot pocket. Water, environment, sustainable infrastructure, defense capacity, and international awards all helped offset a 2% YoY decline in U.S. commercial tied to offshore wind wind-downs. The additional $650M+ of defense contract capacity matters because it improves visibility and raises the odds that backlog converts into cleaner revenue. The less encouraging part is that state and local growth guidance was cut to 5%-10%, and current backlog still sits below the $5.23B level cited on the 2024 Q3 call.
The reason conviction stays low is simple. This is a recovery thesis, not a pristine compounder thesis. Debt is $1.1B, leverage is 2.33x debt/EBITDA, and Q2 EBITDA margin of 12.3% still slipped both sequentially and year over year. July 29 has to confirm that the raised guide is backed by execution, not just optimism. If it does, the discount to peers and the stock's depressed 52-week position leave room for a meaningful move higher.
Key Metrics
| Metric | Value | Context | |||
|---|---|---|---|---|---|
| Current price | $30.98 | Reference price for target and scenario analysis | |||
| Quant price target | $40.68 | Ground-truth target, 31.3% upside, Low confidence | |||
| FY2025 revenue | $5.4B | 5.1% YoY growth, but profitability deteriorated | |||
| FY2025 EPS | $0.94 | -35.5% YoY, depressed base versus FY26 recovery guide | |||
| Operating margin | 6.1% | Down from 9.6% in the prior fiscal year | |||
| Valuation | P/E 18.44x | P/S 1.64x | P/B 4.32x | Below peer averages of 31.4x P/E and 2.6x P/S | |
| FY26 guidance | Revenue $4.25B-$4.40B | Adjusted EPS $1.50-$1.58 | Raised guidance, midpoint implies 9% net revenue growth and +70 bps margin expansion | ||
| Backlog | $4.28B | 8% sequential increase in Q2 FY26, driven by defense and international water awards | |||
| Balance sheet | Debt $1.1B | Debt/EBITDA 2.33x | Debt/Equity 0.60x | Current ratio 1.25x | Manageable, but not loose enough to ignore execution risk |
| Cash generation | FCF $0.2B | 1H FY26 OCF $238M | FY2025 FCF modest, but first-half cash flow reached a record | ||
| Price action | -28.2% vs 52-week high | -5.5% vs 200-day average | Stock is off the highs despite recent guidance raise |
Financial Strength
The balance sheet is good enough for a recovery thesis but not strong enough to excuse another earnings stumble. Leverage at 2.33x debt/EBITDA and $1.1B of debt is manageable for an asset-light engineering firm, and the current ratio of 1.25 is serviceable. The more encouraging signal is cash conversion, first-half operating cash flow reached $238M and DSO improved to 58 days, which suggests working capital is moving in the right direction as fixed-price mix rises. The weak point remains margin quality, FY2025 profitability reset hard, so financial strength from here depends more on execution than on balance-sheet optionality.
Competitive Position
TTEK's edge comes from long-standing client relationships in water, environmental remediation, and government services, plus the credentials and compliance history needed to win regulated work that is hard for new entrants to replicate quickly. That moat is strengthened by backlog, procurement know-how, and a shift toward higher-margin consulting and fixed-price contracts, now 48% YTD, which can improve both economics and customer stickiness. It is durable, but only if management keeps pruning lower-quality work, because the FY2025 margin drop showed returns are still sensitive to mix.
Management & Guidance
Management's current message is straightforward and measurable: Q3 FY26 net revenue of $1.05B-$1.10B, adjusted EPS of $0.38-$0.41, and FY26 revenue of $4.25B-$4.40B with adjusted EPS of $1.50-$1.58. Credibility is decent because the company has beaten EPS estimates in four straight reported quarters and Q2 adjusted EPS of $0.34 exceeded the high end of internal guidance, but the credibility is not bulletproof because FY2025 margin damage was severe and Q2 EBITDA margin still weakened to 12.3%. The guidance should be taken seriously, not blindly, and the July 29 report matters because it will test whether backlog growth and mix improvement are translating into sustained profit recovery.
Segment Analysis
- U.S. federal (Not disclosed): Second-half FY26 growth outlook increased to 8%-12% and Q2 added $650M+ of defense contract capacity.
- U.S. commercial (Not disclosed): Revenue was down 2% YoY in Q2 due to offshore wind wind-downs, but management still raised 2H growth outlook to 8%-12%.
- State and local / municipal water (Not disclosed): Growth outlook moderated to 5%-10%, though municipalities are still moving projects via rates, bonds, and funding restructurings.
- International water and environment (Not disclosed): International water awards helped drive the 8% sequential backlog increase to $4.28B.
Capital Allocation
Capital deployment looks reasonable but not exceptional. FY2025 FCF was $0.2B, buybacks were $0.1B, dividends were $0.0B, and capex was effectively $0.0B, which fits an asset-light engineering model. The more important capital allocation question is M&A, and the Halvik and Providence deals appear strategically aligned with defense capability expansion rather than empire building, but leverage at 2.33x debt/EBITDA limits room for mistakes.
Management Execution & Track Record
Execution is mixed but improving. On the current track record, TTEK beat EPS in 6 of the last 8 reported quarters, including +16.2% on 2025-07-30, +12.9% on 2026-01-28, and +9.7% on 2026-04-29, but there were also notable misses of -78.3% on 2024-05-01 and -5.4% on 2024-11-13. Against the 2024 Q3 call, management then raised FY24 revenue guidance to $4.27B-$4.32B and EPS to $6.23-$6.28, while citing record backlog of $5.23B and Q3 EBITDA margin of 13.3%. Since then, the business has clearly not sustained that profit level, FY2025 revenue was $5.4B but EPS fell to $0.94 and operating margin to 6.1%, with current backlog at $4.28B, below that earlier peak. The strategic direction has not changed much, higher-end consulting, water, federal, and mix improvement remain the playbook, and the latest Q2 FY26 data support renewed credibility because guidance was raised, cash flow was strong, and backlog inflected, but management still needs several more quarters to prove the FY2025 earnings damage was a detour rather than a reset.
Positioning & Flows
Ownership is concentrated, the top three institutions hold 73.2%, while insider ownership is only 0.5%, so the stock will trade more on institutional conviction in the recovery than founder-style signaling. Short interest at 4.72% of shares, or 12.18M shares and 3.5 days to cover, is elevated enough to help on a clean beat but not high enough to be a core squeeze thesis. Options positioning is supportive, with a positive GEX regime and zero-gamma at $27.13, about 12.29% below spot, which suggests downside volatility may be less unstable unless the stock breaks materially lower.
Bull Case
- Management raised FY26 guidance to $4.25B-$4.40B of net revenue and $1.50-$1.58 of adjusted EPS, with 9% net revenue growth and +70 bps margin expansion at the midpoint.
- Q2 FY26 execution improved, adjusted EPS was $0.34 versus the high end of guidance, operating cash flow reached a record $238M in 1H, and DSO improved to 58 days.
- Demand is broad enough to offset weak spots, Q2 net revenue grew 8% YoY, backlog reached $4.28B, and management lifted 2H growth outlook for both U.S. federal and U.S. commercial to 8%-12%.
- Mix is getting better, fixed-price work rose to 48% YTD, which management says carries higher margins and lower working capital needs, and defense capability expanded through Halvik and Providence acquisitions.
Bear Case
- FY2025 showed real deterioration, revenue grew only 5.1% while EPS fell 35.5% to $0.94 and operating margin compressed to 6.1% from 9.6%.
- Q2 EBITDA margin was only 12.3%, down 110 bps versus Q1 and 70 bps versus the prior year, showing the margin recovery is not yet linear.
- U.S. commercial revenue declined 2% YoY because offshore wind programs wound down, and state and local growth outlook was cut to 5%-10% due to caution on federal co-funding.
- Balance-sheet flexibility is adequate but not pristine, debt is $1.1B, debt-to-EBITDA is 2.33x, and FY2025 FCF was only $0.2B after the earnings reset.
Valuation & Price Target
Engine price target $40.68 (+31.3% vs current), Low confidence.
- P/E Multiple: $54.6 (28% weight)
- PEG (growth-adjusted): $17.14 (20% weight)
- P/S Multiple: $53.02 (20% weight)
- Quality-adjusted: $35.06 (20% weight)
- DCF: $35.76 (11% weight)
The rating aligns with the quant baseline BUY, but conviction stays Low because the engine target of $40.68 is built partly on peer multiples with wide dispersion of 4.2x and no sell-side coverage exists to cross-check assumptions. The reason not to downgrade to HOLD is that current valuation, 18.44x P/E and 1.64x P/S, already reflects a lot of the FY2025 damage, while management is guiding to $1.50-$1.58 of FY26 adjusted EPS, 9% net revenue growth, and +70 bps margin expansion after an 8% sequential backlog increase to $4.28B. The reason not to raise conviction is that profitability remains far below the 2024 level, leverage is 2.33x debt/EBITDA, and recent margin softness in CIG shows the recovery still needs proof.
Risk Assessment
Risk score 37/100 (Low). The biggest risk is that FY26 margin recovery disappoints again, because after FY2025 operating margin fell to 6.1% from 9.6%, even management's guided +70 bps improvement still leaves profitability well below the prior peak.
The Bottom Line
Rated BUY, Low conviction. TTEK is cheap enough and improving fast enough to own ahead of a likely earnings recovery, but the stock has earned skepticism after FY2025's margin collapse. The bet is that backlog growth, better contract mix, and stronger defense and water demand can lift FY26 earnings closer to management's $1.50-$1.58 guide than the market is discounting today. A clean Q3 on July 29 would strengthen the case materially. A miss on margins or a slowdown in backlog conversion would be the clearest reason to step aside.
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