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Side-by-side financial comparison of CALIX, INC (CALX) and CATALYST PHARMACEUTICALS, INC. (CPRX). Click either name above to swap in a different company.

CALIX, INC is the larger business by last-quarter revenue ($280.0M vs $152.6M, roughly 1.8× CATALYST PHARMACEUTICALS, INC.). CATALYST PHARMACEUTICALS, INC. runs the higher net margin — 34.5% vs 4.0%, a 30.5% gap on every dollar of revenue. On growth, CALIX, INC posted the faster year-over-year revenue change (27.1% vs 7.6%). CATALYST PHARMACEUTICALS, INC. produced more free cash flow last quarter ($44.9M vs $6.5M). Over the past eight quarters, CATALYST PHARMACEUTICALS, INC.'s revenue compounded faster (24.5% CAGR vs 18.9%).

Calix, Inc. is a telecommunications company that specializes in providing software platforms, systems, and services to support the delivery of broadband services. The company was founded in 1999 and is headquartered in San Jose, California.

Catalyst Pharmaceuticals, Inc. is a biopharmaceutical company based in Coral Gables, Florida, United States. The company develops medicines for rare diseases, including the phosphate salt of amifampridine for the treatment of Lambert–Eaton myasthenic syndrome (LEMS). The drug is referred to under the trade name Firdapse, which was approved by the FDA for approved use in children 6 years and older with LEMS in addition to the prior approval for use in adults with LEMS on November 28, 2018. Fir...

CALX vs CPRX — Head-to-Head

Bigger by revenue
CALX
CALX
1.8× larger
CALX
$280.0M
$152.6M
CPRX
Growing faster (revenue YoY)
CALX
CALX
+19.5% gap
CALX
27.1%
7.6%
CPRX
Higher net margin
CPRX
CPRX
30.5% more per $
CPRX
34.5%
4.0%
CALX
More free cash flow
CPRX
CPRX
$38.3M more FCF
CPRX
$44.9M
$6.5M
CALX
Faster 2-yr revenue CAGR
CPRX
CPRX
Annualised
CPRX
24.5%
18.9%
CALX

Income Statement — Q1 FY2026 vs Q4 FY2025

Metric
CALX
CALX
CPRX
CPRX
Revenue
$280.0M
$152.6M
Net Profit
$11.2M
$52.7M
Gross Margin
56.9%
82.9%
Operating Margin
47.6%
40.5%
Net Margin
4.0%
34.5%
Revenue YoY
27.1%
7.6%
Net Profit YoY
-5.8%
EPS (diluted)
$0.16
$0.40

Green = leading value per metric. Periods may differ when fiscal calendars don't align.

8-Quarter Revenue & Profit Trend

Side-by-side quarterly history. Quarters aligned by calendar period so offset fiscal years line up.

Revenue
CALX
CALX
CPRX
CPRX
Q1 26
$280.0M
Q4 25
$272.4M
$152.6M
Q3 25
$265.4M
$148.4M
Q2 25
$241.9M
$146.6M
Q1 25
$220.2M
$141.4M
Q4 24
$206.1M
$141.8M
Q3 24
$200.9M
$128.7M
Q2 24
$198.1M
$122.7M
Net Profit
CALX
CALX
CPRX
CPRX
Q1 26
$11.2M
Q4 25
$7.2M
$52.7M
Q3 25
$15.7M
$52.8M
Q2 25
$-199.0K
$52.1M
Q1 25
$-4.8M
$56.7M
Q4 24
$-17.9M
$55.9M
Q3 24
$-4.0M
$43.9M
Q2 24
$-8.0M
$40.8M
Gross Margin
CALX
CALX
CPRX
CPRX
Q1 26
56.9%
Q4 25
57.7%
82.9%
Q3 25
57.3%
84.7%
Q2 25
56.3%
85.9%
Q1 25
55.7%
87.3%
Q4 24
55.0%
84.7%
Q3 24
54.8%
85.0%
Q2 24
54.3%
87.4%
Operating Margin
CALX
CALX
CPRX
CPRX
Q1 26
47.6%
Q4 25
3.4%
40.5%
Q3 25
6.6%
44.7%
Q2 25
0.2%
45.2%
Q1 25
-2.8%
44.8%
Q4 24
-9.1%
44.3%
Q3 24
-5.4%
39.6%
Q2 24
-5.7%
44.2%
Net Margin
CALX
CALX
CPRX
CPRX
Q1 26
4.0%
Q4 25
2.6%
34.5%
Q3 25
5.9%
35.6%
Q2 25
-0.1%
35.6%
Q1 25
-2.2%
40.1%
Q4 24
-8.7%
39.4%
Q3 24
-2.0%
34.1%
Q2 24
-4.0%
33.2%
EPS (diluted)
CALX
CALX
CPRX
CPRX
Q1 26
$0.16
Q4 25
$0.11
$0.40
Q3 25
$0.22
$0.42
Q2 25
$0.00
$0.41
Q1 25
$-0.07
$0.45
Q4 24
$-0.27
$0.44
Q3 24
$-0.06
$0.35
Q2 24
$-0.12
$0.33

Balance Sheet & Financial Strength

Snapshot of each company's liquidity, leverage and book value from the latest quarter.

Metric
CALX
CALX
CPRX
CPRX
Cash + ST InvestmentsLiquidity on hand
$54.6M
$709.2M
Total DebtLower is stronger
Stockholders' EquityBook value
$738.0M
$954.3M
Total Assets
$1.1B
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
CALX
CALX
CPRX
CPRX
Q1 26
$54.6M
Q4 25
$143.1M
$709.2M
Q3 25
$95.0M
$689.9M
Q2 25
$76.5M
$652.8M
Q1 25
$42.3M
$580.7M
Q4 24
$43.2M
$517.6M
Q3 24
$62.4M
$442.3M
Q2 24
$84.5M
$375.7M
Stockholders' Equity
CALX
CALX
CPRX
CPRX
Q1 26
$738.0M
Q4 25
$859.2M
$954.3M
Q3 25
$822.5M
$920.2M
Q2 25
$772.7M
$856.0M
Q1 25
$767.2M
$794.3M
Q4 24
$780.9M
$727.6M
Q3 24
$778.7M
$660.9M
Q2 24
$754.2M
$608.7M
Total Assets
CALX
CALX
CPRX
CPRX
Q1 26
Q4 25
$1.1B
$1.1B
Q3 25
$976.4M
$1.1B
Q2 25
$921.4M
$971.9M
Q1 25
$917.1M
$908.9M
Q4 24
$939.3M
$851.4M
Q3 24
$937.5M
$772.0M
Q2 24
$917.9M
$706.4M

Cash Flow & Capital Efficiency

How much cash each business actually produces after reinvestment. Cash flow is harder to manipulate than net income.

Metric
CALX
CALX
CPRX
CPRX
Operating Cash FlowLast quarter
$14.6M
$44.9M
Free Cash FlowOCF − Capex
$6.5M
$44.9M
FCF MarginFCF / Revenue
2.3%
29.4%
Capex IntensityCapex / Revenue
0.0%
Cash ConversionOCF / Net Profit
1.31×
0.85×
TTM Free Cash FlowTrailing 4 quarters
$109.1M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
CALX
CALX
CPRX
CPRX
Q1 26
$14.6M
Q4 25
$46.0M
$44.9M
Q3 25
$32.3M
$32.4M
Q2 25
$39.4M
$71.3M
Q1 25
$17.2M
$60.0M
Q4 24
$15.4M
$70.9M
Q3 24
$16.0M
$72.9M
Q2 24
$22.3M
$64.1M
Free Cash Flow
CALX
CALX
CPRX
CPRX
Q1 26
$6.5M
Q4 25
$40.3M
$44.9M
Q3 25
$26.7M
Q2 25
$35.6M
$71.3M
Q1 25
$12.9M
Q4 24
$10.2M
$70.8M
Q3 24
$12.8M
$72.6M
Q2 24
$16.4M
$64.1M
FCF Margin
CALX
CALX
CPRX
CPRX
Q1 26
2.3%
Q4 25
14.8%
29.4%
Q3 25
10.1%
Q2 25
14.7%
48.6%
Q1 25
5.9%
Q4 24
5.0%
49.9%
Q3 24
6.3%
56.4%
Q2 24
8.3%
52.3%
Capex Intensity
CALX
CALX
CPRX
CPRX
Q1 26
Q4 25
2.1%
0.0%
Q3 25
2.1%
0.0%
Q2 25
1.5%
0.0%
Q1 25
2.0%
0.0%
Q4 24
2.5%
0.1%
Q3 24
1.6%
0.2%
Q2 24
3.0%
0.0%
Cash Conversion
CALX
CALX
CPRX
CPRX
Q1 26
1.31×
Q4 25
6.38×
0.85×
Q3 25
2.06×
0.61×
Q2 25
1.37×
Q1 25
1.06×
Q4 24
1.27×
Q3 24
1.66×
Q2 24
1.57×

Financial Flow Comparison

Revenue → gross profit → operating profit → net profit for each company.

Revenue Breakdown by Segment

CALX
CALX

Appliance$232.8M83%
Software and service$47.1M17%

CPRX
CPRX

Firdapse$97.6M64%
Agamree$35.3M23%
Fycompa$19.6M13%

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