Executive Summary
Rating: HOLD | TER
Teradyne is a test and automation company with a strong near-term growth profile, but the stock already prices in much of the AI-led upside. Q1 2026 revenue reached $1,282.5M, up 87.0% year over year, and EBITDA rose to $501.5M, showing meaningful operating leverage. The key support is balance-sheet flexibility and $298.3M of TTM levered free cash flow. The main risk is customer concentration, which limits visibility if demand from a small number of large accounts slows. The shares screen expensive at 54.2x EV/EBITDA and 45.1x forward P/E, so the investment case now depends on execution staying above the current run rate.
Investment Rating
Rating: HOLD
Valuation is rich at 54.2x EV/EBITDA and 45.1x forward P/E, so the current price already discounts FY2026 AI-led growth. I am not bearish because Q1 2026 revenue was $1,282.5M and EBITDA was $501.5M, but the single biggest risk is customer concentration: five customers were 44.0% of 2025 revenue, limiting visibility if orders slow.
Company Profile
Teradyne designs and sells automated test equipment and robotics systems used in semiconductor, industrial, and electronics manufacturing. Revenue is driven primarily by product sales, with a smaller contribution from service and support. The business is exposed to semiconductor capital spending cycles, but its installed base and recurring service relationships provide some revenue durability. The company competes in markets where technical performance, software integration, and customer qualification cycles matter.
Economic Moat
Business Model
Teradyne’s moat is rooted in qualification depth, software integration, and customer switching costs. Its test systems are embedded in production workflows, so replacement requires requalification, process revalidation, and downtime risk for customers. That creates a practical barrier to switching, especially in leading-edge semiconductor applications where yield and throughput are critical. The company also benefits from a broad installed base that supports service revenue and reinforces customer relationships over time.
Risk Factors
Customer concentration is the highest-severity risk: Teradyne’s five largest direct customers were 44.0% of 2025 revenue, and one direct customer was 19.0% of revenue including specified customers. If any of those buyers cut orders, Teradyne has limited contractual recourse and revenue, margins, and receivables could fall quickly.
Export controls and China exposure are also high severity. U.S. Entity List and military end-user rules have already had and will continue to have an adverse impact on business with certain Chinese customers, and China controls on RMB conversion can restrict remittances. That can reduce sales, block shipments, and trap cash.
Supply-chain and contract-manufacturing disruption is medium severity. Teradyne relies on Flex, Plexus, and SAM Meerkat in Malaysia and Thailand; if they miss quality or delivery requirements, Teradyne could lose time-sensitive customer orders and face penalties.
Cyclicality and inventory risk are medium severity. Management says semiconductor cycles have caused periods of over-supply, and downturns can create excess and obsolete inventory, credit losses, and restructuring charges. This is a medium-severity risk because quarterly revenue and orders can swing materially.
Cybersecurity and product-security breaches are medium severity. Teradyne has already seen several attempted cyber-attacks, and a successful breach could expose proprietary data, disrupt operations, or trigger investor lawsuits.
Management Discussion & Analysis
Management is signaling a capital-allocation tilt toward growth plus buybacks: it spent $127.2M on Quantifi Photonics, $18.3M on Infineon AET, and committed about $157.0M for a 75.0% stake in MultiLane Test Products, while still returning $778.4M to shareholders in 2025 through $702.1M of repurchases and $76.3M of dividends. That mix implies management sees AI data-center test, PIC test, and defense/aerospace as the highest-return uses of capital, not broad-based capacity expansion. The forward trajectory is also clearly AI-led: management said AI-related demand drove the majority of Semiconductor Test revenue in 2H 2025 and should remain the bulk of Q1 2026 revenue, which supports continued mix shift toward higher-value compute and I/O test content. Robotics still posted a $99.4M pre-tax loss in 2025 and required restructuring of about 400 employees, so the portfolio is being funded by a stronger test franchise rather than a fully self-funding robotics turnaround.
Recent Earnings
Q1 2026 showed a sharp step-up in both scale and profitability. Revenue reached $1,282.5M, up 87.0% year over year from $685.7M, while EBITDA increased to $501.5M from $150.1M and net income rose to $398.9M from $98.9M. The Q2 2025 dip to $651.8M revenue versus Q1 2025 is the clearest quarter-over-quarter swing, but the more important signal is that the subsequent rebound was much larger, suggesting stronger demand mix and better operating leverage. The quarter also indicates that pricing and product mix are supporting margin expansion rather than merely offsetting volume growth.
Financial Analysis
Growth
TER — Financial Growth (Quarterly, USD Mil)
Source: Yahoo Finance — Quarterly Financial Statements
| Metric | 2025-03-31 | 2025-06-30 | 2025-09-30 | 2025-12-31 | 2026-03-31 |
|---|---|---|---|---|---|
| REVENUE (USD Mil) | 685.680 | 651.797 | 769.210 | 1,083.337 | 1,282.494 |
| EBIT (USD Mil) | 119.819 | 97.364 | 149.409 | 293.513 | 468.827 |
| EBITDA (USD Mil) | 150.121 | 128.753 | 179.925 | 329.287 | 501.482 |
| NET INCOME (USD Mil) | 98.896 | 78.372 | 119.558 | 257.220 | 398.908 |
| DILUTED EPS | 0.610 | 0.490 | 0.750 | 1.630 | 2.530 |
Revenue increased from $685.7M in Q1 2025 to $1,282.5M in Q1 2026, an 87.0% year-over-year gain. EBITDA rose faster than revenue over the same period, from $150.1M to $501.5M, while net income advanced from $98.9M to $398.9M. Diluted EPS moved from 0.61 to 2.53, confirming that the operating leverage is flowing through to the bottom line.
Profitability
TER — Profitability (TTM)
Source: Yahoo Finance — Trailing Twelve Months (TTM)
| Metric | TTM |
|---|---|
| Operating Margin (TTM) | 0.376 |
| Net Margin (TTM) | 0.226 |
| Return on Assets (TTM) | 0.158 |
| Return on Equity (TTM) | 0.287 |
TTM operating margin was 37.6%, net margin was 22.6%, ROA was 15.8%, and ROE was 28.7%. That is a solid profitability profile, with returns well above the level implied by a cyclical hardware business. The key point is not just that margins are positive, but that the business is converting revenue into earnings at a high rate while still retaining room for reinvestment.
Valuation
TER — Valuation Multiples
Source: Yahoo Finance
| Metric | Value |
|---|---|
| Market Cap (USD Mil) | 67,129.192 |
| Enterprise Value (USD Mil) | 62,954.602 |
| Trailing P/E | 79.412 |
| Forward P/E | 45.124 |
| Price/Sales (TTM) | 17.727 |
| Price/Book (mrq) | 23.942 |
| EV/Revenue | 16.625 |
| EV/EBITDA | 54.203 |
| Beta (5Y Monthly) | 1.794 |
TER trades at 16.6x EV/revenue, 17.7x price/sales, 54.2x EV/EBITDA, 79.4x trailing P/E, and 45.1x forward P/E. I anchor on EV/revenue because the earnings multiples are elevated. At 16.6x sales, the market is pricing in sustained AI-led test demand and enough operating leverage to keep converting revenue into materially higher EBITDA and EPS through FY2026, not just a one-quarter spike.
Leverage
TER — Leverage & Coverage (Quarterly)
Source: Yahoo Finance — Quarterly Financial Statements
| Metric | Value |
|---|---|
| Total Debt/Equity % (mrq) | 2.621 |
| Current Ratio (mrq) | 2.147 |
| Total Debt (mrq, USD Mil) | 82.398 |
| Operating Cash Flow (TTM, USD Mil) | 777.902 |
| Levered Free Cash Flow (TTM, USD Mil) | 298.311 |
Total debt is $82.4M, with total debt/equity at 2.621x and a current ratio of 2.147x, so the balance sheet is lightly levered and near-term liquidity is ample. Operating cash flow is $777.9M TTM and levered free cash flow is $298.3M TTM, which gives TER substantial internal funding capacity. Refinancing risk looks low at this debt level, and the current ratio suggests the company can absorb working-capital swings without stressing liquidity.
Comparable Analysis
On growth, TER’s revenue growth was 87.0% year over year on $3,786.8M of TTM revenue, versus 11.4% for AMAT, 23.8% for LRCX, 11.5% for KLAC, 20.5% for COHR, and 9.5% for ONTO. TER is the fastest grower in this group by a wide margin.
On valuation, TER trades at 79.4x trailing P/E, 45.1x forward P/E, 16.6x EV/revenue, 54.2x EV/EBITDA, 17.7x price/sales, and 23.9x price/book. That is above AMAT on most sales-based measures, below LRCX and KLAC on EV/revenue, and well below COHR and ONTO on trailing P/E.
On profitability, TER’s operating margin of 37.6% and net margin of 22.6% compare with AMAT at 31.9% and 29.3%, LRCX at 35.0% and 30.9%, KLAC at 41.2% and 35.7%, COHR at 13.6% and 7.1%, and ONTO at 16.8% and 10.3%. TER is solidly profitable, though not best in class.
On leverage, TER’s debt/equity of 2.621x is far below AMAT at 30.4x, LRCX at 35.3x, KLAC at 105.4x, and COHR at 31.1x, while ONTO has no debt. TER’s 2.147x current ratio and $298.3M of TTM free cash flow indicate a conservative capital structure relative to peers.
On returns, TER’s ROE is 28.7% and ROA is 15.8%, versus AMAT at 39.7% and 14.9%, LRCX at 66.8% and 22.8%, KLAC at 95.0% and 21.3%, COHR at 4.7% and 3.1%, and ONTO at 5.3% and 5.4%. TER sits in the middle of the group on capital efficiency.
Growth
| Company | Revenue TTM (USD Mil) | Revenue Growth YoY % | EBITDA TTM (USD Mil) | Diluted EPS TTM |
|---|---|---|---|---|
| TER | 3,786.840 | 0.870 | 1,161.470 | 5.400 |
| AMAT | 29,024.000 | 0.114 | 9,275.000 | 10.610 |
| LRCX | 21,681.840 | 0.238 | 7,847.760 | 5.280 |
| KLAC | 13,096.660 | 0.115 | 5,850.220 | 3.540 |
| COHR | 6,602.080 | 0.205 | 1,313.730 | 2.120 |
| ONTO | 1,030.600 | 0.095 | 266.920 | 2.140 |
Valuation
| Company | Trailing P/E | Forward P/E | EV/Revenue | EV/EBITDA | Price/Sales (TTM) | Price/Book (mrq) | Market Cap (USD Mil) | Enterprise Value (USD Mil) | Beta (5Y Monthly) |
|---|---|---|---|---|---|---|---|---|---|
| TER | 79.412 | 45.124 | 16.625 | 54.203 | 17.727 | 23.942 | 67,129.190 | 62,954.600 | 1.794 |
| AMAT | 55.792 | 36.405 | 15.484 | 48.453 | 16.193 | 19.657 | 469,988.280 | 449,400.470 | 1.672 |
| LRCX | 73.712 | 48.795 | 21.110 | 58.323 | 22.448 | 45.983 | 486,722.240 | 457,705.490 | 1.868 |
| KLAC | 71.910 | 50.436 | 25.479 | 57.038 | 25.385 | 57.063 | 332,525.400 | 333,686.700 | 1.504 |
| COHR | 191.335 | 49.607 | 11.613 | 58.358 | 12.020 | 7.429 | 79,357.180 | 76,667.090 | 2.054 |
| ONTO | 158.549 | 35.118 | 14.998 | 57.909 | 16.377 | 8.028 | 16,877.740 | 15,456.780 | 1.625 |
Profitability
| Company | Operating Margin (TTM) | Net Margin (TTM) | Return on Assets (TTM) | Return on Equity (TTM) |
|---|---|---|---|---|
| TER | 0.376 | 0.226 | 0.158 | 0.287 |
| AMAT | 0.319 | 0.293 | 0.149 | 0.397 |
| LRCX | 0.350 | 0.309 | 0.228 | 0.668 |
| KLAC | 0.412 | 0.357 | 0.213 | 0.950 |
| COHR | 0.136 | 0.071 | 0.031 | 0.047 |
| ONTO | 0.168 | 0.103 | 0.054 | 0.053 |
Leverage
| Company | Total Debt/Equity % (mrq) | Current Ratio (mrq) | Total Debt (mrq, USD Mil) | Operating Cash Flow TTM (USD Mil) | Free Cash Flow TTM (USD Mil) |
|---|---|---|---|---|---|
| TER | 2.621 | 2.147 | 82.400 | 777.900 | 298.310 |
| AMAT | 30.399 | 2.508 | 7,268.000 | 7,993.000 | 3,040.380 |
| LRCX | 35.282 | 2.536 | 3,734.480 | 6,954.620 | 4,352.340 |
| KLAC | 105.400 | 3.026 | 6,145.360 | 4,401.640 | 2,890.190 |
| COHR | 31.093 | 3.050 | 3,425.110 | 140.340 | -197.630 |
| ONTO | — | 6.154 | 0.000 | 262.660 | 197.240 |
Returns
| Company | Return on Equity (TTM) | Return on Assets (TTM) |
|---|---|---|
| TER | 0.287 | 0.158 |
| AMAT | 0.397 | 0.149 |
| LRCX | 0.668 | 0.228 |
| KLAC | 0.950 | 0.213 |
| COHR | 0.047 | 0.031 |
| ONTO | 0.053 | 0.054 |
Source: Yahoo Finance
Conclusion
Teradyne’s fundamentals have improved sharply, with Q1 2026 revenue of $1,282.5M and EBITDA of $501.5M showing that AI-led demand is translating into real operating leverage. The balance sheet is manageable, free cash flow is healthy, and profitability is strong on a TTM basis. The issue is valuation: at 54.2x EV/EBITDA and 45.1x forward P/E, the stock already discounts a durable growth cycle. I would stay at Hold until the company proves that the current revenue and EBITDA run rate can persist beyond the next few quarters.
Data sourced from Yahoo Finance. Not investment advice.
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