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Side-by-side financial comparison of ARDELYX, INC. (ARDX) and CALIFORNIA WATER SERVICE GROUP (CWT). Click either name above to swap in a different company.

CALIFORNIA WATER SERVICE GROUP is the larger business by last-quarter revenue ($210.7M vs $94.5M, roughly 2.2× ARDELYX, INC.). CALIFORNIA WATER SERVICE GROUP runs the higher net margin — 5.4% vs -39.8%, a 45.3% gap on every dollar of revenue. On growth, ARDELYX, INC. posted the faster year-over-year revenue change (27.5% vs -3.3%). Over the past eight quarters, CALIFORNIA WATER SERVICE GROUP's revenue compounded faster (16.6% 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.

California Water Service Group (CWSG) is an American public utility company providing drinking water and wastewater services. It is the third-largest investor-owned publicly traded water utility in the United States, serving roughly two million people through its subsidiary companies in California, Hawaii, New Mexico and Washington. CWSG was formed in 1997 as a new holding company for California Water Service to expand into other states regulated by their own public utilities commissions, and...

ARDX vs CWT — Head-to-Head

Bigger by revenue
CWT
CWT
2.2× larger
CWT
$210.7M
$94.5M
ARDX
Growing faster (revenue YoY)
ARDX
ARDX
+30.7% gap
ARDX
27.5%
-3.3%
CWT
Higher net margin
CWT
CWT
45.3% more per $
CWT
5.4%
-39.8%
ARDX
Faster 2-yr revenue CAGR
CWT
CWT
Annualised
CWT
16.6%
13.6%
ARDX

Income Statement — Q1 FY2026 vs Q4 FY2025

Metric
ARDX
ARDX
CWT
CWT
Revenue
$94.5M
$210.7M
Net Profit
$-37.6M
$11.5M
Gross Margin
Operating Margin
12.2%
Net Margin
-39.8%
5.4%
Revenue YoY
27.5%
-3.3%
Net Profit YoY
-41.0%
EPS (diluted)
$-0.15
$0.19

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
CWT
CWT
Q1 26
$94.5M
Q4 25
$125.2M
$210.7M
Q3 25
$110.3M
$314.1M
Q2 25
$97.7M
$256.2M
Q1 25
$74.1M
$182.7M
Q4 24
$116.1M
$217.8M
Q3 24
$98.2M
$306.2M
Q2 24
$73.2M
$226.7M
Net Profit
ARDX
ARDX
CWT
CWT
Q1 26
$-37.6M
Q4 25
$-407.0K
$11.5M
Q3 25
$-969.0K
$61.2M
Q2 25
$-19.1M
$42.2M
Q1 25
$-41.1M
$13.3M
Q4 24
$4.6M
$19.5M
Q3 24
$-809.0K
$60.7M
Q2 24
$-16.5M
$40.6M
Gross Margin
ARDX
ARDX
CWT
CWT
Q1 26
Q4 25
91.3%
Q3 25
96.4%
Q2 25
87.3%
Q1 25
83.4%
Q4 24
84.3%
Q3 24
84.0%
Q2 24
87.1%
Operating Margin
ARDX
ARDX
CWT
CWT
Q1 26
Q4 25
4.1%
12.2%
Q3 25
4.2%
22.5%
Q2 25
-14.7%
20.2%
Q1 25
-49.0%
12.2%
Q4 24
7.0%
14.8%
Q3 24
2.3%
21.8%
Q2 24
-18.6%
21.2%
Net Margin
ARDX
ARDX
CWT
CWT
Q1 26
-39.8%
Q4 25
-0.3%
5.4%
Q3 25
-0.9%
19.5%
Q2 25
-19.5%
16.5%
Q1 25
-55.5%
7.3%
Q4 24
4.0%
8.9%
Q3 24
-0.8%
19.8%
Q2 24
-22.5%
17.9%
EPS (diluted)
ARDX
ARDX
CWT
CWT
Q1 26
$-0.15
Q4 25
$-0.01
$0.19
Q3 25
$0.00
$1.03
Q2 25
$-0.08
$0.71
Q1 25
$-0.17
$0.22
Q4 24
$0.01
$0.31
Q3 24
$0.00
$1.03
Q2 24
$-0.07
$0.70

Balance Sheet & Financial Strength

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

Metric
ARDX
ARDX
CWT
CWT
Cash + ST InvestmentsLiquidity on hand
$238.1M
$51.8M
Total DebtLower is stronger
$203.5M
$1.5B
Stockholders' EquityBook value
$148.6M
$1.7B
Total Assets
$504.5M
$5.7B
Debt / EquityLower = less leverage
1.37×
0.87×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
ARDX
ARDX
CWT
CWT
Q1 26
$238.1M
Q4 25
$68.0M
$51.8M
Q3 25
$42.7M
$76.0M
Q2 25
$90.0M
$50.5M
Q1 25
$30.8M
$44.5M
Q4 24
$64.9M
$50.1M
Q3 24
$47.4M
$59.6M
Q2 24
$41.9M
$37.3M
Total Debt
ARDX
ARDX
CWT
CWT
Q1 26
$203.5M
Q4 25
$202.8M
$1.5B
Q3 25
$202.1M
$1.1B
Q2 25
$201.4M
$1.1B
Q1 25
$151.3M
$1.1B
Q4 24
$150.9M
$1.1B
Q3 24
$100.7M
Q2 24
$100.2M
Stockholders' Equity
ARDX
ARDX
CWT
CWT
Q1 26
$148.6M
Q4 25
$166.9M
$1.7B
Q3 25
$154.3M
$1.7B
Q2 25
$139.5M
$1.7B
Q1 25
$145.7M
$1.6B
Q4 24
$173.3M
$1.6B
Q3 24
$158.3M
$1.6B
Q2 24
$147.0M
$1.5B
Total Assets
ARDX
ARDX
CWT
CWT
Q1 26
$504.5M
Q4 25
$501.6M
$5.7B
Q3 25
$486.2M
$5.5B
Q2 25
$466.8M
$5.4B
Q1 25
$410.2M
$5.3B
Q4 24
$435.8M
$5.2B
Q3 24
$367.9M
$5.0B
Q2 24
$343.5M
$4.9B
Debt / Equity
ARDX
ARDX
CWT
CWT
Q1 26
1.37×
Q4 25
1.21×
0.87×
Q3 25
1.31×
0.65×
Q2 25
1.44×
0.67×
Q1 25
1.04×
0.68×
Q4 24
0.87×
0.67×
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
CWT
CWT
Operating Cash FlowLast quarter
$47.9M
Free Cash FlowOCF − Capex
FCF MarginFCF / Revenue
Capex IntensityCapex / Revenue
Cash ConversionOCF / Net Profit
4.17×
TTM Free Cash FlowTrailing 4 quarters

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
ARDX
ARDX
CWT
CWT
Q1 26
Q4 25
$21.0M
$47.9M
Q3 25
$365.0K
$167.3M
Q2 25
$-25.3M
$48.9M
Q1 25
$-38.5M
$38.4M
Q4 24
$9.8M
$68.1M
Q3 24
$501.0K
$101.8M
Q2 24
$-19.4M
$94.4M
Free Cash Flow
ARDX
ARDX
CWT
CWT
Q1 26
Q4 25
$20.6M
Q3 25
$209.0K
Q2 25
$-26.0M
Q1 25
$-38.8M
Q4 24
$9.2M
Q3 24
$364.0K
Q2 24
$-19.5M
FCF Margin
ARDX
ARDX
CWT
CWT
Q1 26
Q4 25
16.4%
Q3 25
0.2%
Q2 25
-26.6%
Q1 25
-52.3%
Q4 24
7.9%
Q3 24
0.4%
Q2 24
-26.7%
Capex Intensity
ARDX
ARDX
CWT
CWT
Q1 26
Q4 25
0.3%
Q3 25
0.1%
Q2 25
0.7%
Q1 25
0.4%
Q4 24
0.5%
Q3 24
0.1%
Q2 24
0.2%
Cash Conversion
ARDX
ARDX
CWT
CWT
Q1 26
Q4 25
4.17×
Q3 25
2.73×
Q2 25
1.16×
Q1 25
2.88×
Q4 24
2.11×
3.50×
Q3 24
1.68×
Q2 24
2.33×

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%

CWT
CWT

Residential$133.2M63%
Business$47.7M23%
Public Authorities$13.4M6%
Industrial$6.9M3%
Non Regulated Services$4.8M2%
Other Non Regulated Service$1.2M1%

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