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

CALIX, INC is the larger business by last-quarter revenue ($280.0M vs $225.0M, roughly 1.2× GIBRALTAR INDUSTRIES, INC.). On growth, CALIX, INC posted the faster year-over-year revenue change (27.1% vs 24.9%). GIBRALTAR INDUSTRIES, INC. produced more free cash flow last quarter ($26.2M vs $6.5M). Over the past eight quarters, CALIX, INC's revenue compounded faster (18.9% CAGR vs -12.3%).

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.

Gibraltar Industries, Inc. is a leading manufacturer and distributor of specialized building, infrastructure, and renewable energy products. Its offerings include ventilation systems, roofing accessories, solar mounting solutions, and landscape and garden products, serving residential, commercial construction, and clean energy markets primarily across North America, with a focus on innovative, sustainable solutions for its customers.

CALX vs ROCK — Head-to-Head

Bigger by revenue
CALX
CALX
1.2× larger
CALX
$280.0M
$225.0M
ROCK
Growing faster (revenue YoY)
CALX
CALX
+2.2% gap
CALX
27.1%
24.9%
ROCK
More free cash flow
ROCK
ROCK
$19.7M more FCF
ROCK
$26.2M
$6.5M
CALX
Faster 2-yr revenue CAGR
CALX
CALX
Annualised
CALX
18.9%
-12.3%
ROCK

Income Statement — Q1 FY2026 vs Q4 FY2025

Metric
CALX
CALX
ROCK
ROCK
Revenue
$280.0M
$225.0M
Net Profit
$11.2M
Gross Margin
56.9%
25.3%
Operating Margin
47.6%
7.9%
Net Margin
4.0%
Revenue YoY
27.1%
24.9%
Net Profit YoY
EPS (diluted)
$0.16

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
ROCK
ROCK
Q1 26
$280.0M
Q4 25
$272.4M
$225.0M
Q3 25
$265.4M
$310.9M
Q2 25
$241.9M
$309.5M
Q1 25
$220.2M
$290.0M
Q4 24
$206.1M
$180.1M
Q3 24
$200.9M
$277.1M
Q2 24
$198.1M
$273.6M
Net Profit
CALX
CALX
ROCK
ROCK
Q1 26
$11.2M
Q4 25
$7.2M
Q3 25
$15.7M
$-89.1M
Q2 25
$-199.0K
$26.0M
Q1 25
$-4.8M
$21.1M
Q4 24
$-17.9M
Q3 24
$-4.0M
$34.0M
Q2 24
$-8.0M
$32.2M
Gross Margin
CALX
CALX
ROCK
ROCK
Q1 26
56.9%
Q4 25
57.7%
25.3%
Q3 25
57.3%
26.6%
Q2 25
56.3%
28.4%
Q1 25
55.7%
26.8%
Q4 24
55.0%
29.0%
Q3 24
54.8%
29.4%
Q2 24
54.3%
30.5%
Operating Margin
CALX
CALX
ROCK
ROCK
Q1 26
47.6%
Q4 25
3.4%
7.9%
Q3 25
6.6%
12.8%
Q2 25
0.2%
12.8%
Q1 25
-2.8%
8.8%
Q4 24
-9.1%
13.3%
Q3 24
-5.4%
15.6%
Q2 24
-5.7%
14.9%
Net Margin
CALX
CALX
ROCK
ROCK
Q1 26
4.0%
Q4 25
2.6%
Q3 25
5.9%
-28.6%
Q2 25
-0.1%
8.4%
Q1 25
-2.2%
7.3%
Q4 24
-8.7%
Q3 24
-2.0%
12.3%
Q2 24
-4.0%
11.8%
EPS (diluted)
CALX
CALX
ROCK
ROCK
Q1 26
$0.16
Q4 25
$0.11
Q3 25
$0.22
$-2.98
Q2 25
$0.00
$0.87
Q1 25
$-0.07
Q4 24
$-0.27
Q3 24
$-0.06
$1.11
Q2 24
$-0.12
$1.05

Balance Sheet & Financial Strength

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

Metric
CALX
CALX
ROCK
ROCK
Cash + ST InvestmentsLiquidity on hand
$54.6M
$115.7M
Total DebtLower is stronger
$0
Stockholders' EquityBook value
$738.0M
$950.4M
Total Assets
$1.4B
Debt / EquityLower = less leverage
0.00×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
CALX
CALX
ROCK
ROCK
Q1 26
$54.6M
Q4 25
$143.1M
$115.7M
Q3 25
$95.0M
$89.4M
Q2 25
$76.5M
$43.3M
Q1 25
$42.3M
$25.1M
Q4 24
$43.2M
$269.5M
Q3 24
$62.4M
$228.9M
Q2 24
$84.5M
$179.1M
Total Debt
CALX
CALX
ROCK
ROCK
Q1 26
Q4 25
$0
Q3 25
$0
Q2 25
$0
Q1 25
$0
Q4 24
$0
Q3 24
$0
Q2 24
$0
Stockholders' Equity
CALX
CALX
ROCK
ROCK
Q1 26
$738.0M
Q4 25
$859.2M
$950.4M
Q3 25
$822.5M
$951.8M
Q2 25
$772.7M
$1.0B
Q1 25
$767.2M
$1.0B
Q4 24
$780.9M
$1.0B
Q3 24
$778.7M
$1.0B
Q2 24
$754.2M
$975.7M
Total Assets
CALX
CALX
ROCK
ROCK
Q1 26
Q4 25
$1.1B
$1.4B
Q3 25
$976.4M
$1.4B
Q2 25
$921.4M
$1.5B
Q1 25
$917.1M
$1.4B
Q4 24
$939.3M
$1.4B
Q3 24
$937.5M
$1.4B
Q2 24
$917.9M
$1.4B
Debt / Equity
CALX
CALX
ROCK
ROCK
Q1 26
Q4 25
0.00×
Q3 25
0.00×
Q2 25
0.00×
Q1 25
0.00×
Q4 24
0.00×
Q3 24
0.00×
Q2 24
0.00×

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
ROCK
ROCK
Operating Cash FlowLast quarter
$14.6M
$35.5M
Free Cash FlowOCF − Capex
$6.5M
$26.2M
FCF MarginFCF / Revenue
2.3%
11.7%
Capex IntensityCapex / Revenue
4.1%
Cash ConversionOCF / Net Profit
1.31×
TTM Free Cash FlowTrailing 4 quarters
$109.1M
$120.6M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
CALX
CALX
ROCK
ROCK
Q1 26
$14.6M
Q4 25
$46.0M
$35.5M
Q3 25
$32.3M
$73.0M
Q2 25
$39.4M
$44.9M
Q1 25
$17.2M
$13.7M
Q4 24
$15.4M
$19.9M
Q3 24
$16.0M
$64.7M
Q2 24
$22.3M
$36.5M
Free Cash Flow
CALX
CALX
ROCK
ROCK
Q1 26
$6.5M
Q4 25
$40.3M
$26.2M
Q3 25
$26.7M
$64.8M
Q2 25
$35.6M
$27.3M
Q1 25
$12.9M
$2.3M
Q4 24
$10.2M
$14.1M
Q3 24
$12.8M
$60.5M
Q2 24
$16.4M
$33.5M
FCF Margin
CALX
CALX
ROCK
ROCK
Q1 26
2.3%
Q4 25
14.8%
11.7%
Q3 25
10.1%
20.8%
Q2 25
14.7%
8.8%
Q1 25
5.9%
0.8%
Q4 24
5.0%
7.8%
Q3 24
6.3%
21.8%
Q2 24
8.3%
12.2%
Capex Intensity
CALX
CALX
ROCK
ROCK
Q1 26
Q4 25
2.1%
4.1%
Q3 25
2.1%
2.6%
Q2 25
1.5%
5.7%
Q1 25
2.0%
3.9%
Q4 24
2.5%
3.3%
Q3 24
1.6%
1.5%
Q2 24
3.0%
1.1%
Cash Conversion
CALX
CALX
ROCK
ROCK
Q1 26
1.31×
Q4 25
6.38×
Q3 25
2.06×
Q2 25
1.73×
Q1 25
0.65×
Q4 24
Q3 24
1.90×
Q2 24
1.13×

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%

ROCK
ROCK

Transferred At Point In Time$183.5M82%
Infrastructure$22.5M10%
Other$18.9M8%

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