Grade: D — Significant Concerns
Framework: Schilit *Financial Shenanigans* + Beneish M-Score + forensic accounting principles
Data: SEC EDGAR 10-K (Filed 2026-02-19, Fiscal Year Ended December 31, 2025) + Yahoo Finance
Auditor: PricewaterhouseCoopers LLP — Unqualified opinion
One-line verdict: Teradyne's FY2025 tells a story of semiconductor test demand booming while the financial quality signals flash amber. DSO surged 29 days to 90 — the largest single-year DSO jump in our coverage — and AR has outpaced revenue for two consecutive years. Revenue grew 13% to $3.19B with $554M in net income, but CFFO barely budged (+0.3% vs revenue +13%). The M-Score at -2.20 sits in the grey zone, one hundredth of a point above the -2.22 threshold. These are not catastrophic findings, but the combination of DSO spike, AR divergence, revenue growing faster than cash flow, and a borderline M-Score earns a D. The balance sheet itself is clean — minimal debt, strong Z-Score — but the revenue quality checks demand attention.
| Metric | Result |
|---|---|
| Red Flags | **2** (DSO surge, AR vs revenue pattern) |
| Watch Items | **4** (revenue vs CFFO, other assets, goodwill surge, M-Score grey zone) |
| Checks Completed | **17/18** |
| Beneish M-Score | **-2.20** (grey zone — between -2.22 and -1.78) |
| F-Score (Fraud) | **1.74** (predicted probability 0.6%) |
| Altman Z-Score | **5.06** (safe zone) |
| Auditor | PricewaterhouseCoopers LLP — Unqualified opinion |
The Business: Semiconductor Test Riding the AI Wave
Teradyne is the world's leading semiconductor test equipment maker, with growing positions in robotics and product test. The 10-K describes: "semiconductor test systems; robotics products; and product test systems, which include circuit-board test and inspection systems, wireless test systems, photonic integrated circuit test solutions, and defense and aerospace test instrumentation."
Segment revenue from the 10-K:
| Segment | FY2025 | FY2024 | Growth |
|---|---|---|---|
| Semiconductor Test | $2,523.7M | $2,123.9M | +19% |
| Product Test | $358.0M | $331.1M | +8% |
| Robotics | $308.3M | $364.8M | -15% |
| **Total** | **$3,190.0M** | **$2,819.9M** | **+13%** |
The Semiconductor Test surge is AI-driven. Revenue by geography shows Taiwan at 36% of revenue (up from 21%), reflecting massive test capacity buildout at TSMC. China at 14% (up from 13%), Korea at 14% (down from 25% — Samsung/SK Hynix shift), and U.S. at 11%.
The Robotics decline (-15%) is notable — the 10-K mentions "lower spending in Robotics" and restructuring charges of $29.4M, suggesting the collaborative robotics business (Universal Robots) is struggling.
Revenue split: Products 83.4%, Services 16.6%.
Profitability: Growth With a Revenue Quality Question
| Metric | FY2022 | FY2023 | FY2024 | FY2025 | Trend |
|---|---|---|---|---|---|
| Revenue | $3,155M | $2,676M | $2,820M | $3,190M | +13% YoY |
| Net Income | $716M | $449M | $542M | $554M | +2.2% YoY |
| Gross Margin | 59.2% | 57.4% | 58.5% | 58.2% | Stable |
| Net Margin | 22.7% | 16.8% | 19.2% | 17.4% | Declining |
| ROE | 29.2% | 17.8% | 19.2% | 19.8% | Stable |
Revenue grew 13% but net income grew only 2.2% — the margin compression came from higher operating expenses (S&A up $31.8M, R&D up $43.7M) and the $29.4M restructuring charge. Per the 10-K: "Gross profit as a percent of total revenues decreased by 0.3 points, primarily due to product mix."
The gross margin stability around 58% is impressive for test equipment — this reflects Teradyne's dominant market position and customer switching costs.
Cash Flow: The Divergence That Matters
| Metric | FY2022 | FY2023 | FY2024 | FY2025 |
|---|---|---|---|---|
| Operating Cash Flow | $578M | $585M | $672M | $674M |
| Net Income | $716M | $449M | $542M | $554M |
| **CFFO / Net Income** | **0.81** | **1.30** | **1.24** | **1.22** |
| Free Cash Flow | $415M | $426M | $474M | $450M |
| CapEx | $163M | $159M | $198M | $224M |
CFFO/NI of 1.22 is healthy — profits are backed by cash. But the key issue is the growth divergence: revenue grew 13.1% while CFFO grew only 0.3%. Where did the cash go?
Working capital absorbed the difference. The 29-day DSO surge means Teradyne shipped $3.19B in revenue but collected cash on an older, lower revenue base. Cash sits on the balance sheet as accounts receivable rather than in the bank.
Free cash flow actually declined from $474M to $450M despite 13% revenue growth — another sign that the working capital dynamics are consuming the revenue growth benefit.
The 18-Point Screening
Revenue Quality
| # | Check | Result | Detail |
|---|---|---|---|
| A1 | DSO | FAIL | DSO surged 29 days (61 to 90) |
| A2 | AR vs Revenue | FAIL | AR outpaced revenue for 2 consecutive years |
| A3 | Revenue vs CFFO | WATCH | Revenue +13.1% but CFFO only +0.3% |
A1 is the standout red flag. A 29-day DSO increase in a single year is extreme. Going from 61 to 90 days means Teradyne is now waiting a full quarter to collect on average. In a semiconductor test equipment business where orders are large and customers are sophisticated chipmakers, this raises questions about: (a) timing of large shipments near year-end, (b) extended payment terms to win orders in a competitive market (particularly Taiwan), and (c) the quality of the 13% revenue growth.
A2 reinforces the concern. This is the second consecutive year of AR outpacing revenue — a pattern that, per the Schilit framework, is among the most reliable early warning signals of revenue quality problems.
A3 completes the picture. Revenue growing 13% while cash flow is flat means the revenue growth is not converting to cash. Combined with A1 and A2, this is a coherent set of warning signals.
The auditor's report provides context: the 10-K discloses revenue recognition as a critical area. "Revenue Recognition — Certain Products" was identified as a critical audit matter, noting that "for transactions that do not meet the criteria for over time recognition, the Company recognizes revenue for products at a point in time when shipped or delivered based on contractual terms."
Expense Quality
| # | Check | Result | Detail |
|---|---|---|---|
| B1 | Inventory | PASS | Inventory +27.2% vs COGS +13.8%. Normal |
| B2 | CapEx | PASS | CapEx +13.1% vs revenue +13.1% |
| B3 | SG&A Ratio | PASS | SG&A/Gross Profit = 34.9%. Normal |
| B4 | Gross Margin | PASS | 58.2%, -0.3pp. Stable |
Inventory growing 27% while COGS grew 14% could indicate building for expected future demand or potential channel stuffing — but the 10-K's discussion of the semiconductor test ramp provides a credible explanation.
Cash Flow Quality
| # | Check | Result | Detail |
|---|---|---|---|
| C1 | CFFO vs NI | PASS | Ratio 1.22. Profits backed by cash |
| C2 | FCF | PASS | $450M. FCF/NI = 0.81 |
| C3 | Accruals | PASS | Accruals ratio -2.9%. Low |
| C4 | Cash vs Debt | PASS | Cash $322M covers debt $283M |
The cash flow quality checks pass, but the absolute levels tell the story: CFFO was $674M on $554M net income (healthy ratio), but revenue was $3.19B — meaning CFFO/Revenue was only 21%, down from 24% a year ago.
Balance Sheet
| # | Check | Result | Detail |
|---|---|---|---|
| D1 | Goodwill | PASS | $594M = 20% of equity. Manageable |
| D2 | Leverage | PASS | Debt/EBITDA = 0.4x. Conservative |
| D3 | Soft Assets | WATCH | Other assets +44.5% vs revenue +13.1% |
| D4 | Impairment | N/A | No data |
The balance sheet is clean — minimal debt (0.4x EBITDA), goodwill at only 20% of equity, and strong Z-Score at 5.06.
Acquisition Risk & M-Score
| # | Check | Result | Detail |
|---|---|---|---|
| E1 | Serial Acquirer | PASS | FCF after acquisitions positive |
| E2 | Goodwill Surge | WATCH | Goodwill+Intangibles surged 39% YoY |
| F1 | M-Score | WATCH | -2.20. Grey zone |
The M-Score at -2.20 is literally on the border — one hundredth of a point above the -2.22 clean threshold. Components:
| Component | Value | Signal |
|---|---|---|
| DSRI | 1.476 | **Elevated** — DSO spike |
| GMI | 1.004 | Normal |
| AQI | 1.076 | Normal |
| SGI | 1.131 | Normal growth |
| DEPI | 1.029 | Normal |
| SGAI | 0.930 | Improving |
| TATA | -0.029 | Good (cash > earnings) |
| LVGI | 1.583 | **Elevated** — leverage increase |
The DSRI at 1.476 is the primary driver — this single component reflects the 29-day DSO surge and pushes the overall M-Score into the grey zone. The LVGI at 1.583 reflects the increase in debt from $77M to $283M (convertible notes or credit facility draws).
Key Risks from the 10-K
1. Taiwan Concentration
36% of revenue from Taiwan (up from 21%) creates significant geopolitical exposure. If U.S.-China tensions escalate to the point of disrupting Taiwan's semiconductor industry, Teradyne's largest revenue source would be at risk.
2. Robotics Business Deterioration
The 15% decline in Robotics revenue and $29.4M restructuring charge suggest Universal Robots may be losing ground. The 10-K mentions "lower spending in Robotics" in both selling expenses and R&D.
3. Revenue Recognition Complexity
The auditor identified revenue recognition as a critical audit matter, specifically around the determination of performance obligations and transaction price allocation in bundled orders. The 10-K states: "We often sell bundled orders that include multiple performance obligations." Complex revenue recognition combined with DSO spikes warrants monitoring.
4. Customer Concentration in Semiconductor Test
The 10-K notes: "The market for our test products is concentrated with a limited number of significant customers." When a few large chipmakers drive the business, order timing can create large DSO swings — potentially explaining the current spike.
Summary
Grade: D. Two red flags on revenue quality metrics and four watch items — the balance sheet is clean but the receivables pattern demands investigation.
Teradyne's business fundamentals are solid: 58% gross margin, $3.19B revenue, dominant market position in semiconductor test, minimal debt, and strong Z-Score. The M-Score components other than DSRI are all normal.
But the revenue quality signals cannot be dismissed:
The most likely explanation is timing: large semiconductor test orders shipped to Taiwan near year-end, with collection occurring in Q1 2026. If DSO normalizes in the next filing, the concerns evaporate. If it persists or worsens, the pattern becomes more concerning.
**Disclaimer**: This report is based on Teradyne's FY2025 10-K (SEC EDGAR) and public financial data. This is NOT investment advice.
Data: SEC EDGAR 10-K (Fiscal Year Ended December 31, 2025, Filed 2026-02-19) + Yahoo Finance
