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

Fastly, Inc. is the larger business by last-quarter revenue ($172.6M vs $94.5M, roughly 1.8× ARDELYX, INC.). Fastly, Inc. runs the higher net margin — -9.0% vs -39.8%, a 30.8% gap on every dollar of revenue. On growth, ARDELYX, INC. posted the faster year-over-year revenue change (27.5% vs 22.8%). Over the past eight quarters, Fastly, Inc.'s revenue compounded faster (13.7% 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.

Fastly, Inc. is an American company based in San Francisco, which describes itself as a cloud computing company. Fastly provides content delivery network services, image optimization, and load balancing services. Fastly's cloud security services include denial-of-service attack protection, bot mitigation, and a web application firewall.

ARDX vs FSLY — Head-to-Head

Bigger by revenue
FSLY
FSLY
1.8× larger
FSLY
$172.6M
$94.5M
ARDX
Growing faster (revenue YoY)
ARDX
ARDX
+4.7% gap
ARDX
27.5%
22.8%
FSLY
Higher net margin
FSLY
FSLY
30.8% more per $
FSLY
-9.0%
-39.8%
ARDX
Faster 2-yr revenue CAGR
FSLY
FSLY
Annualised
FSLY
13.7%
13.6%
ARDX

Income Statement — Q1 FY2026 vs Q4 FY2025

Metric
ARDX
ARDX
FSLY
FSLY
Revenue
$94.5M
$172.6M
Net Profit
$-37.6M
$-15.5M
Gross Margin
61.4%
Operating Margin
-8.7%
Net Margin
-39.8%
-9.0%
Revenue YoY
27.5%
22.8%
Net Profit YoY
52.9%
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
FSLY
FSLY
Q1 26
$94.5M
Q4 25
$125.2M
$172.6M
Q3 25
$110.3M
$158.2M
Q2 25
$97.7M
$148.7M
Q1 25
$74.1M
$144.5M
Q4 24
$116.1M
$140.6M
Q3 24
$98.2M
$137.2M
Q2 24
$73.2M
$132.4M
Net Profit
ARDX
ARDX
FSLY
FSLY
Q1 26
$-37.6M
Q4 25
$-407.0K
$-15.5M
Q3 25
$-969.0K
$-29.5M
Q2 25
$-19.1M
$-37.5M
Q1 25
$-41.1M
$-39.1M
Q4 24
$4.6M
$-32.9M
Q3 24
$-809.0K
$-38.0M
Q2 24
$-16.5M
$-43.7M
Gross Margin
ARDX
ARDX
FSLY
FSLY
Q1 26
Q4 25
91.3%
61.4%
Q3 25
96.4%
58.4%
Q2 25
87.3%
54.5%
Q1 25
83.4%
53.2%
Q4 24
84.3%
53.4%
Q3 24
84.0%
54.5%
Q2 24
87.1%
55.1%
Operating Margin
ARDX
ARDX
FSLY
FSLY
Q1 26
Q4 25
4.1%
-8.7%
Q3 25
4.2%
-18.2%
Q2 25
-14.7%
-24.8%
Q1 25
-49.0%
-26.4%
Q4 24
7.0%
-24.4%
Q3 24
2.3%
-29.6%
Q2 24
-18.6%
-35.3%
Net Margin
ARDX
ARDX
FSLY
FSLY
Q1 26
-39.8%
Q4 25
-0.3%
-9.0%
Q3 25
-0.9%
-18.6%
Q2 25
-19.5%
-25.2%
Q1 25
-55.5%
-27.1%
Q4 24
4.0%
-23.4%
Q3 24
-0.8%
-27.7%
Q2 24
-22.5%
-33.0%
EPS (diluted)
ARDX
ARDX
FSLY
FSLY
Q1 26
$-0.15
Q4 25
$-0.01
$-0.10
Q3 25
$0.00
$-0.20
Q2 25
$-0.08
$-0.26
Q1 25
$-0.17
$-0.27
Q4 24
$0.01
$-0.23
Q3 24
$0.00
$-0.27
Q2 24
$-0.07
$-0.32

Balance Sheet & Financial Strength

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

Metric
ARDX
ARDX
FSLY
FSLY
Cash + ST InvestmentsLiquidity on hand
$238.1M
$361.8M
Total DebtLower is stronger
$203.5M
Stockholders' EquityBook value
$148.6M
$929.6M
Total Assets
$504.5M
$1.5B
Debt / EquityLower = less leverage
1.37×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
ARDX
ARDX
FSLY
FSLY
Q1 26
$238.1M
Q4 25
$68.0M
$361.8M
Q3 25
$42.7M
$342.9M
Q2 25
$90.0M
$321.2M
Q1 25
$30.8M
$307.3M
Q4 24
$64.9M
$295.9M
Q3 24
$47.4M
$308.2M
Q2 24
$41.9M
$311.8M
Total Debt
ARDX
ARDX
FSLY
FSLY
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
FSLY
FSLY
Q1 26
$148.6M
Q4 25
$166.9M
$929.6M
Q3 25
$154.3M
$937.0M
Q2 25
$139.5M
$942.6M
Q1 25
$145.7M
$957.0M
Q4 24
$173.3M
$965.3M
Q3 24
$158.3M
$969.5M
Q2 24
$147.0M
$981.2M
Total Assets
ARDX
ARDX
FSLY
FSLY
Q1 26
$504.5M
Q4 25
$501.6M
$1.5B
Q3 25
$486.2M
$1.5B
Q2 25
$466.8M
$1.5B
Q1 25
$410.2M
$1.4B
Q4 24
$435.8M
$1.5B
Q3 24
$367.9M
$1.5B
Q2 24
$343.5M
$1.5B
Debt / Equity
ARDX
ARDX
FSLY
FSLY
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
FSLY
FSLY
Operating Cash FlowLast quarter
$22.4M
Free Cash FlowOCF − Capex
$12.2M
FCF MarginFCF / Revenue
7.1%
Capex IntensityCapex / Revenue
5.9%
Cash ConversionOCF / Net Profit
TTM Free Cash FlowTrailing 4 quarters
$65.8M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
ARDX
ARDX
FSLY
FSLY
Q1 26
Q4 25
$21.0M
$22.4M
Q3 25
$365.0K
$28.9M
Q2 25
$-25.3M
$25.8M
Q1 25
$-38.5M
$17.3M
Q4 24
$9.8M
$5.2M
Q3 24
$501.0K
$5.0M
Q2 24
$-19.4M
$-4.9M
Free Cash Flow
ARDX
ARDX
FSLY
FSLY
Q1 26
Q4 25
$20.6M
$12.2M
Q3 25
$209.0K
$22.9M
Q2 25
$-26.0M
$15.9M
Q1 25
$-38.8M
$14.7M
Q4 24
$9.2M
$251.0K
Q3 24
$364.0K
$3.0M
Q2 24
$-19.5M
$-6.7M
FCF Margin
ARDX
ARDX
FSLY
FSLY
Q1 26
Q4 25
16.4%
7.1%
Q3 25
0.2%
14.5%
Q2 25
-26.6%
10.7%
Q1 25
-52.3%
10.2%
Q4 24
7.9%
0.2%
Q3 24
0.4%
2.2%
Q2 24
-26.7%
-5.1%
Capex Intensity
ARDX
ARDX
FSLY
FSLY
Q1 26
Q4 25
0.3%
5.9%
Q3 25
0.1%
3.8%
Q2 25
0.7%
6.6%
Q1 25
0.4%
1.8%
Q4 24
0.5%
3.5%
Q3 24
0.1%
1.5%
Q2 24
0.2%
1.3%
Cash Conversion
ARDX
ARDX
FSLY
FSLY
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%

FSLY
FSLY

Network Services$130.8M76%
Security$35.4M21%
Other$6.4M4%

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