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Side-by-side financial comparison of APPLIED OPTOELECTRONICS, INC. (AAOI) and Repay Holdings Corp (RPAY). Click either name above to swap in a different company.

APPLIED OPTOELECTRONICS, INC. is the larger business by last-quarter revenue ($134.3M vs $78.6M, roughly 1.7× Repay Holdings Corp). On growth, APPLIED OPTOELECTRONICS, INC. posted the faster year-over-year revenue change (33.9% vs 0.4%). Repay Holdings Corp produced more free cash flow last quarter ($23.2M vs $-104.6M). Over the past eight quarters, APPLIED OPTOELECTRONICS, INC.'s revenue compounded faster (81.7% CAGR vs -1.3%).

Applied Optoelectronics Inc. is an American semiconductor company that focuses on optical devices. It was founded in 1997 at the University of Houston and is headquartered in Sugar Land, Texas.

Repay Holdings Corp is a leading payment technology provider delivering integrated end-to-end payment processing solutions for businesses across North America. Its offerings include credit/debit card processing, ACH transfer services, POS system integrations and digital payment tools, serving retail, healthcare, automotive and e-commerce segments to help clients streamline transaction workflows and boost operational efficiency.

AAOI vs RPAY — Head-to-Head

Bigger by revenue
AAOI
AAOI
1.7× larger
AAOI
$134.3M
$78.6M
RPAY
Growing faster (revenue YoY)
AAOI
AAOI
+33.5% gap
AAOI
33.9%
0.4%
RPAY
More free cash flow
RPAY
RPAY
$127.8M more FCF
RPAY
$23.2M
$-104.6M
AAOI
Faster 2-yr revenue CAGR
AAOI
AAOI
Annualised
AAOI
81.7%
-1.3%
RPAY

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
AAOI
AAOI
RPAY
RPAY
Revenue
$134.3M
$78.6M
Net Profit
$-140.1M
Gross Margin
31.2%
74.2%
Operating Margin
-8.6%
-182.2%
Net Margin
-178.3%
Revenue YoY
33.9%
0.4%
Net Profit YoY
-3304.1%
EPS (diluted)
$-0.02
$-1.68

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
AAOI
AAOI
RPAY
RPAY
Q4 25
$134.3M
$78.6M
Q3 25
$118.6M
$77.7M
Q2 25
$103.0M
$75.6M
Q1 25
$99.9M
$77.3M
Q4 24
$100.3M
$78.3M
Q3 24
$65.2M
$79.1M
Q2 24
$43.3M
$74.9M
Q1 24
$40.7M
$80.7M
Net Profit
AAOI
AAOI
RPAY
RPAY
Q4 25
$-140.1M
Q3 25
$-17.9M
$-6.4M
Q2 25
$-9.1M
$-102.3M
Q1 25
$-9.2M
$-7.9M
Q4 24
$-4.1M
Q3 24
$-17.8M
$3.2M
Q2 24
$-26.1M
$-4.1M
Q1 24
$-23.2M
$-5.2M
Gross Margin
AAOI
AAOI
RPAY
RPAY
Q4 25
31.2%
74.2%
Q3 25
28.0%
74.4%
Q2 25
30.3%
75.7%
Q1 25
30.6%
75.9%
Q4 24
28.7%
76.3%
Q3 24
24.4%
77.8%
Q2 24
22.1%
78.2%
Q1 24
18.7%
76.2%
Operating Margin
AAOI
AAOI
RPAY
RPAY
Q4 25
-8.6%
-182.2%
Q3 25
-15.3%
-3.9%
Q2 25
-15.5%
-138.7%
Q1 25
-8.9%
-4.7%
Q4 24
-6.5%
-1.5%
Q3 24
-25.4%
-0.9%
Q2 24
-60.7%
-4.6%
Q1 24
-53.2%
-3.1%
Net Margin
AAOI
AAOI
RPAY
RPAY
Q4 25
-178.3%
Q3 25
-15.1%
-8.3%
Q2 25
-8.8%
-135.2%
Q1 25
-9.2%
-10.3%
Q4 24
-5.3%
Q3 24
-27.3%
4.1%
Q2 24
-60.4%
-5.4%
Q1 24
-57.0%
-6.5%
EPS (diluted)
AAOI
AAOI
RPAY
RPAY
Q4 25
$-0.02
$-1.68
Q3 25
$-0.28
$-0.08
Q2 25
$-0.16
$-1.15
Q1 25
$-0.18
$-0.09
Q4 24
$-2.82
$-0.04
Q3 24
$-0.42
$0.03
Q2 24
$-0.66
$-0.04
Q1 24
$-0.60
$-0.06

Balance Sheet & Financial Strength

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

Metric
AAOI
AAOI
RPAY
RPAY
Cash + ST InvestmentsLiquidity on hand
$206.1M
$115.7M
Total DebtLower is stronger
$34.0M
$280.1M
Stockholders' EquityBook value
$733.9M
$484.4M
Total Assets
$1.2B
$1.2B
Debt / EquityLower = less leverage
0.05×
0.58×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
AAOI
AAOI
RPAY
RPAY
Q4 25
$206.1M
$115.7M
Q3 25
$137.0M
$95.7M
Q2 25
$64.7M
$162.6M
Q1 25
$51.1M
$165.5M
Q4 24
$67.4M
$189.5M
Q3 24
$34.1M
$168.7M
Q2 24
$10.7M
$147.1M
Q1 24
$8.4M
$128.3M
Total Debt
AAOI
AAOI
RPAY
RPAY
Q4 25
$34.0M
$280.1M
Q3 25
$279.5M
Q2 25
$279.0M
Q1 25
$22.1M
$497.6M
Q4 24
$26.7M
$496.8M
Q3 24
$29.5M
$496.2M
Q2 24
$22.5M
$435.6M
Q1 24
$24.1M
$434.9M
Stockholders' Equity
AAOI
AAOI
RPAY
RPAY
Q4 25
$733.9M
$484.4M
Q3 25
$559.1M
$616.9M
Q2 25
$425.0M
$633.7M
Q1 25
$309.0M
$755.7M
Q4 24
$229.1M
$761.3M
Q3 24
$212.1M
$754.7M
Q2 24
$186.5M
$815.4M
Q1 24
$195.7M
$813.8M
Total Assets
AAOI
AAOI
RPAY
RPAY
Q4 25
$1.2B
$1.2B
Q3 25
$978.5M
$1.3B
Q2 25
$796.9M
$1.4B
Q1 25
$644.7M
$1.5B
Q4 24
$547.0M
$1.6B
Q3 24
$410.0M
$1.6B
Q2 24
$348.0M
$1.5B
Q1 24
$350.9M
$1.5B
Debt / Equity
AAOI
AAOI
RPAY
RPAY
Q4 25
0.05×
0.58×
Q3 25
0.45×
Q2 25
0.44×
Q1 25
0.07×
0.66×
Q4 24
0.12×
0.65×
Q3 24
0.14×
0.66×
Q2 24
0.12×
0.53×
Q1 24
0.12×
0.53×

Cash Flow & Capital Efficiency

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

Metric
AAOI
AAOI
RPAY
RPAY
Operating Cash FlowLast quarter
$-29.6M
$23.3M
Free Cash FlowOCF − Capex
$-104.6M
$23.2M
FCF MarginFCF / Revenue
-77.9%
29.6%
Capex IntensityCapex / Revenue
55.9%
0.1%
Cash ConversionOCF / Net Profit
TTM Free Cash FlowTrailing 4 quarters
$-353.6M
$90.7M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
AAOI
AAOI
RPAY
RPAY
Q4 25
$-29.6M
$23.3M
Q3 25
$-28.5M
$32.2M
Q2 25
$-65.5M
$33.1M
Q1 25
$-50.9M
$2.5M
Q4 24
$-24.6M
$34.3M
Q3 24
$-14.4M
$60.1M
Q2 24
$-2.0M
$31.0M
Q1 24
$-28.5M
$24.8M
Free Cash Flow
AAOI
AAOI
RPAY
RPAY
Q4 25
$-104.6M
$23.2M
Q3 25
$-78.7M
$32.1M
Q2 25
$-91.0M
$33.0M
Q1 25
$-79.3M
$2.4M
Q4 24
$-53.0M
$34.0M
Q3 24
$-20.7M
$59.8M
Q2 24
$-5.0M
$30.5M
Q1 24
$-34.2M
$24.7M
FCF Margin
AAOI
AAOI
RPAY
RPAY
Q4 25
-77.9%
29.6%
Q3 25
-66.3%
41.3%
Q2 25
-88.3%
43.6%
Q1 25
-79.4%
3.0%
Q4 24
-52.9%
43.5%
Q3 24
-31.8%
75.6%
Q2 24
-11.5%
40.7%
Q1 24
-84.2%
30.6%
Capex Intensity
AAOI
AAOI
RPAY
RPAY
Q4 25
55.9%
0.1%
Q3 25
42.4%
0.2%
Q2 25
24.7%
0.1%
Q1 25
28.4%
0.2%
Q4 24
28.3%
0.3%
Q3 24
9.7%
0.3%
Q2 24
6.9%
0.6%
Q1 24
14.2%
0.1%
Cash Conversion
AAOI
AAOI
RPAY
RPAY
Q4 25
Q3 25
Q2 25
Q1 25
Q4 24
Q3 24
18.52×
Q2 24
Q1 24

Financial Flow Comparison

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

Revenue Breakdown by Segment

AAOI
AAOI

Data Center$74.9M56%
CATV$54.0M40%
Telecom$5.1M4%

RPAY
RPAY

Sales Channel Directly To Consumer$69.4M88%
Other$6.8M9%
Sales Channel Through Intermediary$2.3M3%

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