CALXCalix, Inc.

$37.23-41% 1Y

Is the business good?

Mixed

The checks split: nothing decisive, though earnings fully cash-backed (2.5×).

1 good, 3 neutral
Fundamental health (F-score)6 / 9SEC EDGAR · Dec 31, 2025

Mixed fundamental signals. Nine pass/fail tests of year-over-year health from the filings.

Profits arrive as cash2.53×derived · Jun 27, 2026

Operating profit is fully backed by cash.

Margin direction, 3 years−0.1 pts

Margins have held roughly steady, a stable cost structure.

Where ROE comes from2% ROA

A balanced mix of margins, efficiency, and leverage. ROE 3% = margin × turnover × leverage.

Unless marked, from derived.

Against the whole market›

Percentile against every name Ryufin tracks. Higher is better; the tick marks the middle of the market. Context, not one of the checks above.

FCF conversionbetter than 81% of the market

Where this answer is blind. The F-score rewards improvement, so an already-elite company can score mid-pack.

How good a business is CALX?

Calix, Inc. earns 9.4% on the capital it employs against a 9.0% cost of capital, so the business is worth more the bigger it gets.

9.4%

Return on invested capital · cost of capital 9.0% · 0.38 points above what the capital costs: growth creates value

Operating margin
5.5%

Operating margin · Software - Infrastructure median 5.8% · 12 months to Q2 2026

Cash conversion
2.53×

Cash conversion · operating cash flow covers the operating profit after tax

Share count, year on year
+1.5%

Share count, year on year · shareholders own a smaller slice than a year ago

Operating margin by fiscal year
YearOperating margin
FY20206.8%
FY202111%
FY20226.1%
FY20232.5%
FY2024−5.2%
FY20252.1%
Details›
Gross margin12 months to Q2 2026
57%
Operating margin12 months to Q2 2026
5.5%
Net margin12 months to Q2 2026
4.6%
Free cash flow margin
7.7%
R&D as % of revenue
19%
Revenue, trailing twelve months
$1.11B
Free cash flow, trailing twelve months
$85M
Net income, trailing twelve months
$51M
Return on invested capitaloperating profit after tax ÷ debt + equity − cash
9.4%

Margins, capital and share counts from the statements as filed with the SEC; cash conversion is operating cash flow over operating profit after tax.