Grade: C — Some Red Flags, Investigate
Framework: Schilit *Financial Shenanigans* + Beneish M-Score + forensic accounting principles
Data: SEC EDGAR 10-K (Filed 2025-11-25) + Yahoo Finance
Auditor: PricewaterhouseCoopers LLP — Clean opinion (served since 1996)
One-line verdict: F5 delivered its best year in company history with revenue crossing $3B for the first time and net income hitting $692M, a 22% increase year-over-year. The financials are exceptionally clean — cash flow tracks earnings, accruals are negative, and the balance sheet carries minimal debt. The sole red flag is structural: goodwill plus intangibles of $2.5B represent 71% of shareholders' equity, a legacy of past acquisitions including the $145M CalypsoAI deal completed in September 2025. This is an intangible-heavy balance sheet but not a manipulated one — the actual operating business generates strong, verifiable cash.
| Metric | Result |
|---|---|
| Red Flags | **1** |
| Watch Items | **1** |
| Checks Completed | **17/18** |
| Beneish M-Score | **-2.60** (clean) |
| F-Score (Fraud Probability) | **0.45** (0.16% probability) |
| Altman Z-Score | **5.01** (safe zone) |
| Auditor | PricewaterhouseCoopers LLP — Unqualified opinion |
| Fiscal Year | 2025 (ended September 30, 2025) |
| Report Date | 2026-04-05 |
Revenue: Product Resurgence Driving Growth
F5 crossed the $3B revenue threshold in FY2025 for the first time. Per the consolidated income statements:
| Metric | FY2025 | FY2024 | FY2023 |
|---|---|---|---|
| Product Revenue | $1,509M | $1,273M | $1,335M |
| Service Revenue | $1,579M | $1,543M | $1,479M |
| **Total Revenue** | **$3,088M** | **$2,816M** | **$2,813M** |
| Gross Profit | $2,514M | $2,258M | $2,220M |
| Income from Operations | $766M | $659M | $473M |
| Net Income | $692M | $567M | $395M |
The product revenue breakdown reveals where the growth came from. Per the 10-K:
| Product Category | FY2025 | FY2024 | FY2023 |
|---|---|---|---|
| Systems Revenue | $706M | $537M | $671M |
| Subscription | $508M | $430M | $353M |
| SaaS & Managed Services | $176M | $193M | $203M |
| Perpetual Licenses | $120M | $112M | $108M |
Systems revenue rebounded 31.3% after a down year, and subscriptions grew 18%. However, SaaS and managed services actually declined 9%, suggesting customers are choosing on-premises subscription over cloud-hosted models.
The filing notes customer concentration: "two worldwide distributors of our products accounted for 33.3% of our total net revenue for fiscal year 2025" — Customer A at 15.8% and Customer B at 17.5%. This is a meaningful concentration risk.
Cash Flow: Pristine Cash Conversion
Per the consolidated statements of cash flows:
| Metric | FY2025 | FY2024 | FY2023 |
|---|---|---|---|
| Net Income | $692M | $567M | $395M |
| Operating Cash Flow | $950M | $792M | $653M |
| CapEx | -$43M | -$30M | -$54M |
| Acquisitions | -$171M | -$33M | -$35M |
| **Free Cash Flow** | **$906M** | **$762M** | **$599M** |
| CFFO/NI Ratio | 1.37x | 1.40x | 1.65x |
Every dollar of profit is backed by more than a dollar of cash. Three consecutive years of improving FCF. Stock-based compensation of $231M is the primary non-cash reconciling item, which is significant at 33% of net income — but it is running consistently and not masking cash shortfalls.
The company returned $502M through buybacks in FY2025, consuming 55% of FCF, while building cash on the balance sheet. A disciplined capital allocation profile.
Balance Sheet: Clean But Intangible-Heavy
Per the consolidated balance sheet:
| Item | FY2025 | FY2024 |
|---|---|---|
| Cash & Equivalents | $1,344M | $1,075M |
| Accounts Receivable | $414M | $389M |
| Total Current Assets | $2,519M | $2,109M |
| Goodwill | $2,444M | $2,312M |
| Other Intangibles | $96M | $112M |
| Total Assets | $6,319M | $5,613M |
| Total Debt | $262M | $250M |
| Total Current Liabilities | $1,613M | $1,490M |
| Deferred Revenue | $1,999M | $1,798M |
| Shareholders' Equity | $3,592M | $3,129M |
The balance sheet is nearly debt-free — $262M of debt against $1.3B of cash. But goodwill of $2.4B is 68% of equity, and total intangible assets represent 71% of equity. The goodwill rollforward shows $132M added in FY2025 from the CalypsoAI acquisition. No impairments have been taken.
Deferred revenue of $2.0B ($1.2B current + $786M long-term) is a healthy sign — this represents prepaid customer contracts that will convert to recognized revenue over time.
The 18-Point Screening
| # | Check | Result | Detail |
|---|---|---|---|
| A1 | DSO Change | PASS | DSO 49 days, -1 day YoY. Stable collection pattern |
| A2 | AR vs Revenue Growth | PASS | AR +6.5% vs revenue +9.7%. Revenue outpacing receivables |
| A3 | Revenue vs CFFO | PASS | Revenue +9.7%, CFFO +19.8%. Cash follows revenue |
| B1 | Inventory vs COGS | PASS | Inventory +1.1% vs COGS +2.9%. Normal |
| B2 | CapEx vs Revenue | WATCH | CapEx grew 42.2%, more than 2x revenue growth of 9.7% |
| B3 | SG&A Ratio | PASS | SG&A/Gross Profit = 47.0%. Normal for software |
| B4 | Gross Margin | PASS | Gross margin 81.4%, +1.2pp. Expanding |
| C1 | CFFO vs Net Income | PASS | CFFO/NI = 1.37. Profits backed by cash |
| C2 | Free Cash Flow | PASS | FCF $906M, FCF/NI = 1.31 |
| C3 | Accruals Ratio | PASS | -4.1%. Negative accruals — earnings quality strong |
| C4 | Cash vs Debt | PASS | Cash $1.3B covers debt $262M by 5.1x |
| D1 | Goodwill + Intangibles | **FAIL** | $2.5B = 71% of equity. Over 50% threshold |
| D2 | Leverage | PASS | Debt/EBITDA = 0.3x. Minimal leverage |
| D3 | Soft Asset Growth | PASS | Other assets +18.5% vs revenue +9.7%. Normal |
| D4 | Asset Impairment | N/A | No write-off data |
| E1 | Serial Acquirer FCF | PASS | FCF after acquisitions positive |
| E2 | Goodwill Surge | PASS | Goodwill +5% YoY. CalypsoAI added $132M |
| F1 | Beneish M-Score | PASS | M-Score = -2.60 (< -2.22). Clean |
Beneish M-Score Component Breakdown:
| Component | Value | What It Measures | Concern? |
|---|---|---|---|
| DSRI | 0.971 | Days Sales in Receivables | Normal |
| GMI | 0.985 | Gross Margin Index | Stable |
| AQI | 0.968 | Asset Quality Index | Normal |
| SGI | 1.097 | Sales Growth Index | Moderate growth |
| DEPI | 1.155 | Depreciation Index | Slightly elevated |
| SGAI | 0.980 | SG&A Index | Stable |
| TATA | -0.041 | Total Accruals to Assets | Good — negative |
| LVGI | 0.962 | Leverage Index | Stable |
Key Risks from the 10-K
1. Customer Concentration
The filing reveals that two distributors account for 33.3% of total revenue. In receivables, four customers each account for more than 10%: Customer A (11.1%), Customer B (17.8%), Customer C (10.9%), and Customer D (11.4%). Loss of a major distribution partner could meaningfully impact revenue.
2. CalypsoAI Acquisition Integration
F5 acquired CalypsoAI for $145M in cash on September 26, 2025 — just four days before fiscal year-end. Per the 10-K, CalypsoAI is "a provider in enterprise AI security" whose capabilities will be "integrated into the F5 ADSP." The goodwill from this acquisition is not tax-deductible, and integration has barely begun.
3. Restructuring Activity
The filing discloses restructuring plans in both Q1 and Q4 of fiscal 2025. The earlier Q1 2025 plan involved "a reduction in force affecting approximately 620 employees, or approximately 9% of the Company's global workforce." FY2025 restructuring charges were $25.5M, down from $65.4M in FY2023.
4. SaaS Transition Stalling
SaaS and managed services revenue declined from $193M to $176M, suggesting the cloud transition is not gaining traction. The company remains dependent on on-premises hardware and software subscription models.
Key Financial Trends (4-Year)
| Metric | FY2022 | FY2023 | FY2024 | FY2025 |
|---|---|---|---|---|
| Revenue | $2,696M | $2,813M | $2,816M | $3,088M |
| Net Income | $322M | $395M | $567M | $692M |
| Gross Margin | 80.0% | 78.9% | 80.2% | 81.4% |
| Net Margin | 12.0% | 14.0% | 20.1% | 22.4% |
| ROE | 13.0% | 14.1% | 18.1% | 19.3% |
| CFFO | $443M | $653M | $792M | $950M |
| FCF | $409M | $599M | $762M | $906M |
| Cash | $885M | $803M | $1,075M | $1,344M |
| Total Debt | $665M | $281M | $250M | $262M |
Summary
Grade: C. One red flag and one watch item. A clean business with an intangible-heavy balance sheet.
F5's FY2025 is the best year in the company's history by nearly every measure: record revenue of $3.1B, record net income of $692M, record free cash flow of $906M, expanding gross margins at 81.4%, and minimal debt of $262M against $1.3B of cash. The M-Score of -2.60 is clean, and the F-Score of 0.45 puts fraud probability at just 0.16%.
The sole red flag is structural rather than behavioral: goodwill plus intangibles of $2.5B represent 71% of equity. This is an artifact of F5's acquisition history, not evidence of financial manipulation. Goodwill has grown modestly ($2.3B to $2.4B) with the CalypsoAI acquisition, and no impairments have been needed.
The watch item — CapEx growing 42% against 9.7% revenue growth — reflects modest absolute numbers ($43M vs $30M prior year) and is not concerning at this scale.
The real business risks are not in the financials but in the strategy: SaaS revenue is declining, customer concentration is significant (33% through two distributors), and the CalypsoAI AI-security bet was completed literally days before year-end with no integration progress to evaluate.
**Disclaimer**: This report is based on F5, Inc.'s fiscal year 2025 10-K filed with the SEC on November 25, 2025. This is NOT investment advice.
**About EarningsGrade**: We screen earnings reports for financial red flags using an 18-point forensic framework. Grade C means some red flags were detected that warrant investigation before investing.