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Side-by-side financial comparison of Astera Labs, Inc. (ALAB) and Proto Labs Inc (PRLB). Click either name above to swap in a different company.

Astera Labs, Inc. is the larger business by last-quarter revenue ($270.6M vs $139.3M, roughly 1.9× Proto Labs Inc). Astera Labs, Inc. runs the higher net margin — 16.6% vs 5.8%, a 10.8% gap on every dollar of revenue. On growth, Astera Labs, Inc. posted the faster year-over-year revenue change (91.8% vs 10.4%). Over the past eight quarters, Astera Labs, Inc.'s revenue compounded faster (103.6% CAGR vs 5.3%).

Astera Labs, Inc. is an American fabless semiconductor manufacturer and artificial intelligence company. The company specializes in designing high-speed connectivity solutions for data centers and AI infrastructure. The company has been listed on the Nasdaq since March 2024.

Protolabs is a company that provides rapid manufacturing of 3D printed, CNC-machined, sheet metal, and injection-molded custom parts for prototyping and production. Markets like medical devices, aerospace, electronics, appliances, automotive and consumer products use these parts. Protolabs' headquarters are located in Maple Plain, Minnesota, with Minnesota-based manufacturing facilities in Plymouth, Brooklyn Park, and Rosemount, along with additional facilities in Nashua, New Hampshire and Ca...

ALAB vs PRLB — Head-to-Head

Bigger by revenue
ALAB
ALAB
1.9× larger
ALAB
$270.6M
$139.3M
PRLB
Growing faster (revenue YoY)
ALAB
ALAB
+81.4% gap
ALAB
91.8%
10.4%
PRLB
Higher net margin
ALAB
ALAB
10.8% more per $
ALAB
16.6%
5.8%
PRLB
Faster 2-yr revenue CAGR
ALAB
ALAB
Annualised
ALAB
103.6%
5.3%
PRLB

Income Statement — Q4 FY2025 vs Q1 FY2026

Metric
ALAB
ALAB
PRLB
PRLB
Revenue
$270.6M
$139.3M
Net Profit
$45.0M
$8.1M
Gross Margin
75.6%
45.6%
Operating Margin
24.7%
7.1%
Net Margin
16.6%
5.8%
Revenue YoY
91.8%
10.4%
Net Profit YoY
82.0%
125.4%
EPS (diluted)
$0.25
$0.29

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
ALAB
ALAB
PRLB
PRLB
Q1 26
$139.3M
Q4 25
$270.6M
$136.5M
Q3 25
$230.6M
$135.4M
Q2 25
$191.9M
$135.1M
Q1 25
$159.4M
$126.2M
Q4 24
$141.1M
$121.8M
Q3 24
$113.1M
$125.6M
Q2 24
$76.8M
$125.6M
Net Profit
ALAB
ALAB
PRLB
PRLB
Q1 26
$8.1M
Q4 25
$45.0M
Q3 25
$91.1M
$7.2M
Q2 25
$51.2M
$4.4M
Q1 25
$31.8M
$3.6M
Q4 24
$24.7M
Q3 24
$-7.6M
$7.2M
Q2 24
$-7.5M
$4.5M
Gross Margin
ALAB
ALAB
PRLB
PRLB
Q1 26
45.6%
Q4 25
75.6%
44.2%
Q3 25
76.2%
45.3%
Q2 25
75.8%
44.3%
Q1 25
74.9%
44.1%
Q4 24
74.0%
42.7%
Q3 24
77.7%
45.6%
Q2 24
77.9%
45.0%
Operating Margin
ALAB
ALAB
PRLB
PRLB
Q1 26
7.1%
Q4 25
24.7%
5.0%
Q3 25
24.0%
6.5%
Q2 25
20.7%
3.7%
Q1 25
7.1%
3.6%
Q4 24
0.1%
-1.2%
Q3 24
-7.9%
6.8%
Q2 24
-31.7%
4.8%
Net Margin
ALAB
ALAB
PRLB
PRLB
Q1 26
5.8%
Q4 25
16.6%
Q3 25
39.5%
5.3%
Q2 25
26.7%
3.3%
Q1 25
20.0%
2.9%
Q4 24
17.5%
Q3 24
-6.7%
5.7%
Q2 24
-9.8%
3.6%
EPS (diluted)
ALAB
ALAB
PRLB
PRLB
Q1 26
$0.29
Q4 25
$0.25
$0.25
Q3 25
$0.50
$0.30
Q2 25
$0.29
$0.18
Q1 25
$0.18
$0.15
Q4 24
$1.23
$-0.01
Q3 24
$-0.05
$0.29
Q2 24
$-0.05
$0.18

Balance Sheet & Financial Strength

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

Metric
ALAB
ALAB
PRLB
PRLB
Cash + ST InvestmentsLiquidity on hand
$167.6M
$124.0M
Total DebtLower is stronger
Stockholders' EquityBook value
$1.4B
$683.1M
Total Assets
$1.5B
$778.6M
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
ALAB
ALAB
PRLB
PRLB
Q1 26
$124.0M
Q4 25
$167.6M
$128.1M
Q3 25
$140.4M
$119.2M
Q2 25
$162.3M
$103.2M
Q1 25
$86.4M
$96.8M
Q4 24
$79.6M
$103.1M
Q3 24
$126.1M
$100.5M
Q2 24
$421.1M
$112.9M
Stockholders' Equity
ALAB
ALAB
PRLB
PRLB
Q1 26
$683.1M
Q4 25
$1.4B
$673.9M
Q3 25
$1.3B
$664.7M
Q2 25
$1.1B
$664.7M
Q1 25
$1.0B
$656.8M
Q4 24
$964.8M
$670.2M
Q3 24
$889.6M
$680.0M
Q2 24
$845.3M
$685.2M
Total Assets
ALAB
ALAB
PRLB
PRLB
Q1 26
$778.6M
Q4 25
$1.5B
$763.4M
Q3 25
$1.4B
$756.9M
Q2 25
$1.3B
$743.3M
Q1 25
$1.1B
$737.5M
Q4 24
$1.1B
$743.5M
Q3 24
$983.1M
$753.8M
Q2 24
$915.5M
$758.2M

Cash Flow & Capital Efficiency

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

Metric
ALAB
ALAB
PRLB
PRLB
Operating Cash FlowLast quarter
$95.3M
$17.5M
Free Cash FlowOCF − Capex
$76.6M
FCF MarginFCF / Revenue
28.3%
Capex IntensityCapex / Revenue
6.9%
Cash ConversionOCF / Net Profit
2.12×
2.16×
TTM Free Cash FlowTrailing 4 quarters
$281.8M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
ALAB
ALAB
PRLB
PRLB
Q1 26
$17.5M
Q4 25
$95.3M
$16.5M
Q3 25
$78.2M
$29.1M
Q2 25
$135.4M
$10.6M
Q1 25
$10.5M
$18.4M
Q4 24
$39.7M
$17.3M
Q3 24
$63.5M
$24.8M
Q2 24
$29.8M
$14.4M
Free Cash Flow
ALAB
ALAB
PRLB
PRLB
Q1 26
Q4 25
$76.6M
$8.4M
Q3 25
$65.9M
$25.0M
Q2 25
$133.3M
$9.1M
Q1 25
$6.0M
$17.1M
Q4 24
$24.3M
$16.5M
Q3 24
$46.8M
$23.2M
Q2 24
$28.5M
$10.2M
FCF Margin
ALAB
ALAB
PRLB
PRLB
Q1 26
Q4 25
28.3%
6.2%
Q3 25
28.6%
18.5%
Q2 25
69.5%
6.7%
Q1 25
3.7%
13.6%
Q4 24
17.2%
13.5%
Q3 24
41.4%
18.5%
Q2 24
37.1%
8.2%
Capex Intensity
ALAB
ALAB
PRLB
PRLB
Q1 26
Q4 25
6.9%
5.9%
Q3 25
5.3%
3.0%
Q2 25
1.1%
1.1%
Q1 25
2.8%
1.0%
Q4 24
10.9%
0.7%
Q3 24
14.8%
1.2%
Q2 24
1.7%
3.3%
Cash Conversion
ALAB
ALAB
PRLB
PRLB
Q1 26
2.16×
Q4 25
2.12×
Q3 25
0.86×
4.03×
Q2 25
2.64×
2.39×
Q1 25
0.33×
5.11×
Q4 24
1.61×
Q3 24
3.44×
Q2 24
3.18×

Financial Flow Comparison

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

Revenue Breakdown by Segment

ALAB
ALAB

Segment breakdown not available.

PRLB
PRLB

CNC Machining$63.2M45%
Injection Molding$51.1M37%
3D Printing$20.5M15%
Sheet Metal$4.4M3%
Other Revenue$207.0K0%

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