vs

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

ARDELYX, INC. is the larger business by last-quarter revenue ($94.5M vs $62.2M, roughly 1.5× Ouster, Inc.). On growth, Ouster, Inc. posted the faster year-over-year revenue change (106.6% vs 27.5%). Over the past eight quarters, Ouster, Inc.'s revenue compounded faster (54.8% CAGR vs 13.6%).

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.

Ouster, Inc. is an American lidar technology company headquartered in San Francisco, California. It builds high-resolution, digital 3D lidar sensors for use in autonomous vehicles, industrial, robotics, drones, mapping, defense, and security systems.

ARDX vs OUST — Head-to-Head

Bigger by revenue
ARDX
ARDX
1.5× larger
ARDX
$94.5M
$62.2M
OUST
Growing faster (revenue YoY)
OUST
OUST
+79.2% gap
OUST
106.6%
27.5%
ARDX
Faster 2-yr revenue CAGR
OUST
OUST
Annualised
OUST
54.8%
13.6%
ARDX

Income Statement — Q1 FY2026 vs Q4 FY2025

Metric
ARDX
ARDX
OUST
OUST
Revenue
$94.5M
$62.2M
Net Profit
$-37.6M
Gross Margin
60.2%
Operating Margin
1.5%
Net Margin
-39.8%
Revenue YoY
27.5%
106.6%
Net Profit YoY
EPS (diluted)
$-0.15
$0.10

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
OUST
OUST
Q1 26
$94.5M
Q4 25
$125.2M
$62.2M
Q3 25
$110.3M
$39.5M
Q2 25
$97.7M
$35.0M
Q1 25
$74.1M
$32.6M
Q4 24
$116.1M
$30.1M
Q3 24
$98.2M
$28.1M
Q2 24
$73.2M
$27.0M
Net Profit
ARDX
ARDX
OUST
OUST
Q1 26
$-37.6M
Q4 25
$-407.0K
Q3 25
$-969.0K
$-21.7M
Q2 25
$-19.1M
$-20.6M
Q1 25
$-41.1M
$-22.0M
Q4 24
$4.6M
Q3 24
$-809.0K
$-25.6M
Q2 24
$-16.5M
$-23.9M
Gross Margin
ARDX
ARDX
OUST
OUST
Q1 26
Q4 25
91.3%
60.2%
Q3 25
96.4%
42.1%
Q2 25
87.3%
45.2%
Q1 25
83.4%
41.3%
Q4 24
84.3%
43.8%
Q3 24
84.0%
38.3%
Q2 24
87.1%
33.7%
Operating Margin
ARDX
ARDX
OUST
OUST
Q1 26
Q4 25
4.1%
1.5%
Q3 25
4.2%
-61.4%
Q2 25
-14.7%
-76.5%
Q1 25
-49.0%
-73.0%
Q4 24
7.0%
-85.1%
Q3 24
2.3%
-98.0%
Q2 24
-18.6%
-93.6%
Net Margin
ARDX
ARDX
OUST
OUST
Q1 26
-39.8%
Q4 25
-0.3%
Q3 25
-0.9%
-55.0%
Q2 25
-19.5%
-58.8%
Q1 25
-55.5%
-67.5%
Q4 24
4.0%
Q3 24
-0.8%
-91.1%
Q2 24
-22.5%
-88.4%
EPS (diluted)
ARDX
ARDX
OUST
OUST
Q1 26
$-0.15
Q4 25
$-0.01
$0.10
Q3 25
$0.00
$-0.37
Q2 25
$-0.08
$-0.38
Q1 25
$-0.17
$-0.42
Q4 24
$0.01
$-0.46
Q3 24
$0.00
$-0.54
Q2 24
$-0.07
$-0.53

Balance Sheet & Financial Strength

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

Metric
ARDX
ARDX
OUST
OUST
Cash + ST InvestmentsLiquidity on hand
$238.1M
$208.6M
Total DebtLower is stronger
$203.5M
Stockholders' EquityBook value
$148.6M
$261.7M
Total Assets
$504.5M
$349.5M
Debt / EquityLower = less leverage
1.37×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
ARDX
ARDX
OUST
OUST
Q1 26
$238.1M
Q4 25
$68.0M
$208.6M
Q3 25
$42.7M
$244.5M
Q2 25
$90.0M
$226.5M
Q1 25
$30.8M
$168.2M
Q4 24
$64.9M
$172.0M
Q3 24
$47.4M
$151.4M
Q2 24
$41.9M
$184.2M
Total Debt
ARDX
ARDX
OUST
OUST
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
OUST
OUST
Q1 26
$148.6M
Q4 25
$166.9M
$261.7M
Q3 25
$154.3M
$247.4M
Q2 25
$139.5M
$221.0M
Q1 25
$145.7M
$167.9M
Q4 24
$173.3M
$180.9M
Q3 24
$158.3M
$171.7M
Q2 24
$147.0M
$170.6M
Total Assets
ARDX
ARDX
OUST
OUST
Q1 26
$504.5M
Q4 25
$501.6M
$349.5M
Q3 25
$486.2M
$353.8M
Q2 25
$466.8M
$321.8M
Q1 25
$410.2M
$268.6M
Q4 24
$435.8M
$276.1M
Q3 24
$367.9M
$255.2M
Q2 24
$343.5M
$309.9M
Debt / Equity
ARDX
ARDX
OUST
OUST
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
OUST
OUST
Operating Cash FlowLast quarter
$-15.4M
Free Cash FlowOCF − Capex
$-37.2M
FCF MarginFCF / Revenue
-59.8%
Capex IntensityCapex / Revenue
35.0%
Cash ConversionOCF / Net Profit
TTM Free Cash FlowTrailing 4 quarters
$-64.8M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
ARDX
ARDX
OUST
OUST
Q1 26
Q4 25
$21.0M
$-15.4M
Q3 25
$365.0K
$-18.3M
Q2 25
$-25.3M
$-1.3M
Q1 25
$-38.5M
$-4.9M
Q4 24
$9.8M
$-2.6M
Q3 24
$501.0K
$-3.8M
Q2 24
$-19.4M
$-21.6M
Free Cash Flow
ARDX
ARDX
OUST
OUST
Q1 26
Q4 25
$20.6M
$-37.2M
Q3 25
$209.0K
$-20.0M
Q2 25
$-26.0M
$-2.2M
Q1 25
$-38.8M
$-5.4M
Q4 24
$9.2M
$-4.0M
Q3 24
$364.0K
$-4.3M
Q2 24
$-19.5M
$-22.0M
FCF Margin
ARDX
ARDX
OUST
OUST
Q1 26
Q4 25
16.4%
-59.8%
Q3 25
0.2%
-50.7%
Q2 25
-26.6%
-6.3%
Q1 25
-52.3%
-16.6%
Q4 24
7.9%
-13.3%
Q3 24
0.4%
-15.4%
Q2 24
-26.7%
-81.5%
Capex Intensity
ARDX
ARDX
OUST
OUST
Q1 26
Q4 25
0.3%
35.0%
Q3 25
0.1%
4.3%
Q2 25
0.7%
2.5%
Q1 25
0.4%
1.7%
Q4 24
0.5%
4.8%
Q3 24
0.1%
2.0%
Q2 24
0.2%
1.3%
Cash Conversion
ARDX
ARDX
OUST
OUST
Q1 26
Q4 25
Q3 25
Q2 25
Q1 25
Q4 24
2.11×
Q3 24
Q2 24

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%

OUST
OUST

Segment breakdown not available.

Related Comparisons