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Side-by-side financial comparison of Apellis Pharmaceuticals, Inc. (APLS) and Five9, Inc. (FIVN). Click either name above to swap in a different company.

Five9, Inc. is the larger business by last-quarter revenue ($300.3M vs $199.9M, roughly 1.5× Apellis Pharmaceuticals, Inc.). On growth, Five9, Inc. posted the faster year-over-year revenue change (7.8% vs -5.9%). Five9, Inc. produced more free cash flow last quarter ($77.3M vs $-14.3M). Over the past eight quarters, Five9, Inc.'s revenue compounded faster (10.3% CAGR vs 7.7%).

Apellis Pharmaceuticals is a clinical-stage biopharmaceutical company focused on developing targeted therapies that modulate the complement system to address serious unmet medical needs. Its core products target ophthalmic conditions like geographic atrophy secondary to age-related macular degeneration, as well as rare hematological and autoimmune disorders, with primary operations in the United States and European markets.

Five9, Inc. is a leading global provider of cloud-native contact center software and solutions. It serves enterprises of all sizes across retail, healthcare, financial services, and technology sectors, offering omnichannel customer engagement tools, AI-powered automation, workforce management, and analytics to boost customer experience and operational efficiency.

APLS vs FIVN — Head-to-Head

Bigger by revenue
FIVN
FIVN
1.5× larger
FIVN
$300.3M
$199.9M
APLS
Growing faster (revenue YoY)
FIVN
FIVN
+13.7% gap
FIVN
7.8%
-5.9%
APLS
More free cash flow
FIVN
FIVN
$91.6M more FCF
FIVN
$77.3M
$-14.3M
APLS
Faster 2-yr revenue CAGR
FIVN
FIVN
Annualised
FIVN
10.3%
7.7%
APLS

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
APLS
APLS
FIVN
FIVN
Revenue
$199.9M
$300.3M
Net Profit
$-59.0M
Gross Margin
55.4%
Operating Margin
-25.6%
6.6%
Net Margin
-29.5%
Revenue YoY
-5.9%
7.8%
Net Profit YoY
-62.2%
EPS (diluted)
$-0.40
$0.22

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
APLS
APLS
FIVN
FIVN
Q4 25
$199.9M
$300.3M
Q3 25
$458.6M
$285.8M
Q2 25
$178.5M
$283.3M
Q1 25
$166.8M
$279.7M
Q4 24
$212.5M
$278.7M
Q3 24
$196.8M
$264.2M
Q2 24
$199.7M
$252.1M
Q1 24
$172.3M
$247.0M
Net Profit
APLS
APLS
FIVN
FIVN
Q4 25
$-59.0M
Q3 25
$215.7M
$18.0M
Q2 25
$-42.2M
$1.2M
Q1 25
$-92.2M
$576.0K
Q4 24
$-36.4M
Q3 24
$-57.4M
$-4.5M
Q2 24
$-37.7M
$-12.8M
Q1 24
$-66.4M
$-7.1M
Gross Margin
APLS
APLS
FIVN
FIVN
Q4 25
55.4%
Q3 25
55.0%
Q2 25
54.9%
Q1 25
55.0%
Q4 24
56.0%
Q3 24
53.8%
Q2 24
53.0%
Q1 24
53.6%
Operating Margin
APLS
APLS
FIVN
FIVN
Q4 25
-25.6%
6.6%
Q3 25
48.7%
5.6%
Q2 25
-18.6%
-0.6%
Q1 25
-50.0%
-1.9%
Q4 24
-12.3%
1.5%
Q3 24
-24.0%
-5.8%
Q2 24
-14.7%
-7.7%
Q1 24
-36.0%
-8.4%
Net Margin
APLS
APLS
FIVN
FIVN
Q4 25
-29.5%
Q3 25
47.0%
6.3%
Q2 25
-23.6%
0.4%
Q1 25
-55.3%
0.2%
Q4 24
-17.1%
Q3 24
-29.2%
-1.7%
Q2 24
-18.9%
-5.1%
Q1 24
-38.5%
-2.9%
EPS (diluted)
APLS
APLS
FIVN
FIVN
Q4 25
$-0.40
$0.22
Q3 25
$1.67
$0.21
Q2 25
$-0.33
$0.01
Q1 25
$-0.74
$0.01
Q4 24
$-0.30
$0.16
Q3 24
$-0.46
$-0.06
Q2 24
$-0.30
$-0.17
Q1 24
$-0.54
$-0.10

Balance Sheet & Financial Strength

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

Metric
APLS
APLS
FIVN
FIVN
Cash + ST InvestmentsLiquidity on hand
$466.2M
$232.1M
Total DebtLower is stronger
Stockholders' EquityBook value
$370.1M
$785.8M
Total Assets
$1.1B
$1.8B
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
APLS
APLS
FIVN
FIVN
Q4 25
$466.2M
$232.1M
Q3 25
$479.2M
$193.4M
Q2 25
$370.0M
$205.5M
Q1 25
$358.4M
$370.3M
Q4 24
$411.3M
$362.5M
Q3 24
$396.9M
$291.0M
Q2 24
$360.1M
$175.7M
Q1 24
$325.9M
$240.2M
Total Debt
APLS
APLS
FIVN
FIVN
Q4 25
Q3 25
Q2 25
Q1 25
Q4 24
Q3 24
Q2 24
Q1 24
$93.1M
Stockholders' Equity
APLS
APLS
FIVN
FIVN
Q4 25
$370.1M
$785.8M
Q3 25
$401.2M
$775.3M
Q2 25
$156.3M
$717.4M
Q1 25
$164.2M
$664.3M
Q4 24
$228.5M
$622.2M
Q3 24
$237.1M
$565.6M
Q2 24
$264.3M
$525.9M
Q1 24
$266.7M
$483.6M
Total Assets
APLS
APLS
FIVN
FIVN
Q4 25
$1.1B
$1.8B
Q3 25
$1.1B
$1.8B
Q2 25
$821.4M
$1.7B
Q1 25
$807.3M
$2.1B
Q4 24
$885.1M
$2.1B
Q3 24
$901.9M
$2.0B
Q2 24
$904.5M
$1.9B
Q1 24
$831.9M
$1.9B
Debt / Equity
APLS
APLS
FIVN
FIVN
Q4 25
Q3 25
Q2 25
Q1 25
Q4 24
Q3 24
Q2 24
Q1 24
0.35×

Cash Flow & Capital Efficiency

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

Metric
APLS
APLS
FIVN
FIVN
Operating Cash FlowLast quarter
$-14.2M
$83.6M
Free Cash FlowOCF − Capex
$-14.3M
$77.3M
FCF MarginFCF / Revenue
-7.1%
25.8%
Capex IntensityCapex / Revenue
0.1%
2.1%
Cash ConversionOCF / Net Profit
TTM Free Cash FlowTrailing 4 quarters
$45.0M
$201.2M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
APLS
APLS
FIVN
FIVN
Q4 25
$-14.2M
$83.6M
Q3 25
$108.5M
$59.2M
Q2 25
$4.4M
$35.1M
Q1 25
$-53.4M
$48.4M
Q4 24
$19.4M
$49.8M
Q3 24
$34.1M
$41.1M
Q2 24
$-8.3M
$19.9M
Q1 24
$-133.0M
$32.4M
Free Cash Flow
APLS
APLS
FIVN
FIVN
Q4 25
$-14.3M
$77.3M
Q3 25
$108.3M
$48.7M
Q2 25
$4.4M
$31.6M
Q1 25
$-53.4M
$43.7M
Q4 24
$19.3M
$40.5M
Q3 24
$26.7M
Q2 24
$-8.4M
$13.1M
Q1 24
$-133.3M
$20.4M
FCF Margin
APLS
APLS
FIVN
FIVN
Q4 25
-7.1%
25.8%
Q3 25
23.6%
17.0%
Q2 25
2.5%
11.1%
Q1 25
-32.0%
15.6%
Q4 24
9.1%
14.5%
Q3 24
10.1%
Q2 24
-4.2%
5.2%
Q1 24
-77.3%
8.3%
Capex Intensity
APLS
APLS
FIVN
FIVN
Q4 25
0.1%
2.1%
Q3 25
0.0%
3.7%
Q2 25
0.0%
1.2%
Q1 25
0.0%
1.7%
Q4 24
0.0%
3.3%
Q3 24
0.0%
5.4%
Q2 24
0.0%
2.7%
Q1 24
0.2%
4.8%
Cash Conversion
APLS
APLS
FIVN
FIVN
Q4 25
Q3 25
0.50×
3.29×
Q2 25
30.38×
Q1 25
84.00×
Q4 24
Q3 24
Q2 24
Q1 24

Financial Flow Comparison

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

Revenue Breakdown by Segment

APLS
APLS

Syfovre$155.2M78%
Empaveli Pegcetacoplan$35.1M18%
Licensing And Other Revenue$9.6M5%

FIVN
FIVN

Segment breakdown not available.

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