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

Proto Labs Inc is the larger business by last-quarter revenue ($139.3M vs $94.5M, roughly 1.5× ARDELYX, INC.). Proto Labs Inc runs the higher net margin — 5.8% vs -39.8%, a 45.6% gap on every dollar of revenue. On growth, ARDELYX, INC. posted the faster year-over-year revenue change (27.5% vs 10.4%). Over the past eight quarters, ARDELYX, INC.'s revenue compounded faster (13.6% CAGR vs 5.3%).

Ardelyx, Inc. is a commercial-stage biopharmaceutical firm developing and commercializing innovative therapies for gastrointestinal, cardiorenal and metabolic diseases with high unmet medical needs. Its lead product is approved in the US for irritable bowel syndrome with constipation, and it holds a robust pipeline of early and late-stage drug candidates.

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...

ARDX vs PRLB — Head-to-Head

Bigger by revenue
PRLB
PRLB
1.5× larger
PRLB
$139.3M
$94.5M
ARDX
Growing faster (revenue YoY)
ARDX
ARDX
+17.1% gap
ARDX
27.5%
10.4%
PRLB
Higher net margin
PRLB
PRLB
45.6% more per $
PRLB
5.8%
-39.8%
ARDX
Faster 2-yr revenue CAGR
ARDX
ARDX
Annualised
ARDX
13.6%
5.3%
PRLB

Income Statement — Q1 FY2026 vs Q1 FY2026

Metric
ARDX
ARDX
PRLB
PRLB
Revenue
$94.5M
$139.3M
Net Profit
$-37.6M
$8.1M
Gross Margin
45.6%
Operating Margin
7.1%
Net Margin
-39.8%
5.8%
Revenue YoY
27.5%
10.4%
Net Profit YoY
125.4%
EPS (diluted)
$-0.15
$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
ARDX
ARDX
PRLB
PRLB
Q1 26
$94.5M
$139.3M
Q4 25
$125.2M
$136.5M
Q3 25
$110.3M
$135.4M
Q2 25
$97.7M
$135.1M
Q1 25
$74.1M
$126.2M
Q4 24
$116.1M
$121.8M
Q3 24
$98.2M
$125.6M
Q2 24
$73.2M
$125.6M
Net Profit
ARDX
ARDX
PRLB
PRLB
Q1 26
$-37.6M
$8.1M
Q4 25
$-407.0K
Q3 25
$-969.0K
$7.2M
Q2 25
$-19.1M
$4.4M
Q1 25
$-41.1M
$3.6M
Q4 24
$4.6M
Q3 24
$-809.0K
$7.2M
Q2 24
$-16.5M
$4.5M
Gross Margin
ARDX
ARDX
PRLB
PRLB
Q1 26
45.6%
Q4 25
91.3%
44.2%
Q3 25
96.4%
45.3%
Q2 25
87.3%
44.3%
Q1 25
83.4%
44.1%
Q4 24
84.3%
42.7%
Q3 24
84.0%
45.6%
Q2 24
87.1%
45.0%
Operating Margin
ARDX
ARDX
PRLB
PRLB
Q1 26
7.1%
Q4 25
4.1%
5.0%
Q3 25
4.2%
6.5%
Q2 25
-14.7%
3.7%
Q1 25
-49.0%
3.6%
Q4 24
7.0%
-1.2%
Q3 24
2.3%
6.8%
Q2 24
-18.6%
4.8%
Net Margin
ARDX
ARDX
PRLB
PRLB
Q1 26
-39.8%
5.8%
Q4 25
-0.3%
Q3 25
-0.9%
5.3%
Q2 25
-19.5%
3.3%
Q1 25
-55.5%
2.9%
Q4 24
4.0%
Q3 24
-0.8%
5.7%
Q2 24
-22.5%
3.6%
EPS (diluted)
ARDX
ARDX
PRLB
PRLB
Q1 26
$-0.15
$0.29
Q4 25
$-0.01
$0.25
Q3 25
$0.00
$0.30
Q2 25
$-0.08
$0.18
Q1 25
$-0.17
$0.15
Q4 24
$0.01
$-0.01
Q3 24
$0.00
$0.29
Q2 24
$-0.07
$0.18

Balance Sheet & Financial Strength

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

Metric
ARDX
ARDX
PRLB
PRLB
Cash + ST InvestmentsLiquidity on hand
$238.1M
$124.0M
Total DebtLower is stronger
$203.5M
Stockholders' EquityBook value
$148.6M
$683.1M
Total Assets
$504.5M
$778.6M
Debt / EquityLower = less leverage
1.37×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
ARDX
ARDX
PRLB
PRLB
Q1 26
$238.1M
$124.0M
Q4 25
$68.0M
$128.1M
Q3 25
$42.7M
$119.2M
Q2 25
$90.0M
$103.2M
Q1 25
$30.8M
$96.8M
Q4 24
$64.9M
$103.1M
Q3 24
$47.4M
$100.5M
Q2 24
$41.9M
$112.9M
Total Debt
ARDX
ARDX
PRLB
PRLB
Q1 26
$203.5M
Q4 25
$202.8M
Q3 25
$202.1M
Q2 25
$201.4M
Q1 25
$151.3M
Q4 24
$150.9M
Q3 24
$100.7M
Q2 24
$100.2M
Stockholders' Equity
ARDX
ARDX
PRLB
PRLB
Q1 26
$148.6M
$683.1M
Q4 25
$166.9M
$673.9M
Q3 25
$154.3M
$664.7M
Q2 25
$139.5M
$664.7M
Q1 25
$145.7M
$656.8M
Q4 24
$173.3M
$670.2M
Q3 24
$158.3M
$680.0M
Q2 24
$147.0M
$685.2M
Total Assets
ARDX
ARDX
PRLB
PRLB
Q1 26
$504.5M
$778.6M
Q4 25
$501.6M
$763.4M
Q3 25
$486.2M
$756.9M
Q2 25
$466.8M
$743.3M
Q1 25
$410.2M
$737.5M
Q4 24
$435.8M
$743.5M
Q3 24
$367.9M
$753.8M
Q2 24
$343.5M
$758.2M
Debt / Equity
ARDX
ARDX
PRLB
PRLB
Q1 26
1.37×
Q4 25
1.21×
Q3 25
1.31×
Q2 25
1.44×
Q1 25
1.04×
Q4 24
0.87×
Q3 24
0.64×
Q2 24
0.68×

Cash Flow & Capital Efficiency

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

Metric
ARDX
ARDX
PRLB
PRLB
Operating Cash FlowLast quarter
$17.5M
Free Cash FlowOCF − Capex
FCF MarginFCF / Revenue
Capex IntensityCapex / Revenue
Cash ConversionOCF / Net Profit
2.16×
TTM Free Cash FlowTrailing 4 quarters

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
ARDX
ARDX
PRLB
PRLB
Q1 26
$17.5M
Q4 25
$21.0M
$16.5M
Q3 25
$365.0K
$29.1M
Q2 25
$-25.3M
$10.6M
Q1 25
$-38.5M
$18.4M
Q4 24
$9.8M
$17.3M
Q3 24
$501.0K
$24.8M
Q2 24
$-19.4M
$14.4M
Free Cash Flow
ARDX
ARDX
PRLB
PRLB
Q1 26
Q4 25
$20.6M
$8.4M
Q3 25
$209.0K
$25.0M
Q2 25
$-26.0M
$9.1M
Q1 25
$-38.8M
$17.1M
Q4 24
$9.2M
$16.5M
Q3 24
$364.0K
$23.2M
Q2 24
$-19.5M
$10.2M
FCF Margin
ARDX
ARDX
PRLB
PRLB
Q1 26
Q4 25
16.4%
6.2%
Q3 25
0.2%
18.5%
Q2 25
-26.6%
6.7%
Q1 25
-52.3%
13.6%
Q4 24
7.9%
13.5%
Q3 24
0.4%
18.5%
Q2 24
-26.7%
8.2%
Capex Intensity
ARDX
ARDX
PRLB
PRLB
Q1 26
Q4 25
0.3%
5.9%
Q3 25
0.1%
3.0%
Q2 25
0.7%
1.1%
Q1 25
0.4%
1.0%
Q4 24
0.5%
0.7%
Q3 24
0.1%
1.2%
Q2 24
0.2%
3.3%
Cash Conversion
ARDX
ARDX
PRLB
PRLB
Q1 26
2.16×
Q4 25
Q3 25
4.03×
Q2 25
2.39×
Q1 25
5.11×
Q4 24
2.11×
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

ARDX
ARDX

IBSRELA$70.1M74%
XPHOZAH$23.3M25%
Non-cash royalty revenue related to the sale of future royalties$695.0K1%
Product supply revenue$354.0K0%

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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