vs

Side-by-side financial comparison of APPLIED OPTOELECTRONICS, INC. (AAOI) and OLD SECOND BANCORP INC (OSBC). Click either name above to swap in a different company.

APPLIED OPTOELECTRONICS, INC. is the larger business by last-quarter revenue ($134.3M vs $93.8M, roughly 1.4× OLD SECOND BANCORP INC). Over the past eight quarters, APPLIED OPTOELECTRONICS, INC.'s revenue compounded faster (81.7% CAGR vs 15.1%).

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.

U.S. Bancorp is an American multinational banking institution headquartered in Minneapolis, Minnesota and incorporated in Delaware. It is the 5th-largest bank in the United States as of 2025. As the largest bank in the Midwestern United States, it is considered systemically important by the Financial Stability Board. It is the parent company of its primary operating entity, U.S. Bank National Association, which does business as U.S. Bank. The company provides banking, investment, mortgage, tr...

AAOI vs OSBC — Head-to-Head

Bigger by revenue
AAOI
AAOI
1.4× larger
AAOI
$134.3M
$93.8M
OSBC
Faster 2-yr revenue CAGR
AAOI
AAOI
Annualised
AAOI
81.7%
15.1%
OSBC

Income Statement — Q4 FY2025 vs Q1 FY2026

Metric
AAOI
AAOI
OSBC
OSBC
Revenue
$134.3M
$93.8M
Net Profit
$25.6M
Gross Margin
31.2%
Operating Margin
-8.6%
Net Margin
27.3%
Revenue YoY
33.9%
Net Profit YoY
159.2%
EPS (diluted)
$-0.02
$0.48

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
OSBC
OSBC
Q1 26
$93.8M
Q4 25
$134.3M
$95.2M
Q3 25
$118.6M
$95.9M
Q2 25
$103.0M
$75.1M
Q1 25
$99.9M
$73.1M
Q4 24
$100.3M
$73.2M
Q3 24
$65.2M
$71.2M
Q2 24
$43.3M
$70.8M
Net Profit
AAOI
AAOI
OSBC
OSBC
Q1 26
$25.6M
Q4 25
Q3 25
$-17.9M
$9.9M
Q2 25
$-9.1M
$21.8M
Q1 25
$-9.2M
$19.8M
Q4 24
Q3 24
$-17.8M
$23.0M
Q2 24
$-26.1M
$21.9M
Gross Margin
AAOI
AAOI
OSBC
OSBC
Q1 26
Q4 25
31.2%
Q3 25
28.0%
Q2 25
30.3%
Q1 25
30.6%
Q4 24
28.7%
Q3 24
24.4%
Q2 24
22.1%
Operating Margin
AAOI
AAOI
OSBC
OSBC
Q1 26
Q4 25
-8.6%
41.2%
Q3 25
-15.3%
13.6%
Q2 25
-15.5%
38.9%
Q1 25
-8.9%
35.8%
Q4 24
-6.5%
34.7%
Q3 24
-25.4%
41.9%
Q2 24
-60.7%
41.2%
Net Margin
AAOI
AAOI
OSBC
OSBC
Q1 26
27.3%
Q4 25
Q3 25
-15.1%
10.3%
Q2 25
-8.8%
29.0%
Q1 25
-9.2%
27.1%
Q4 24
Q3 24
-27.3%
32.3%
Q2 24
-60.4%
30.9%
EPS (diluted)
AAOI
AAOI
OSBC
OSBC
Q1 26
$0.48
Q4 25
$-0.02
$0.53
Q3 25
$-0.28
$0.18
Q2 25
$-0.16
$0.48
Q1 25
$-0.18
$0.43
Q4 24
$-2.82
$0.42
Q3 24
$-0.42
$0.50
Q2 24
$-0.66
$0.48

Balance Sheet & Financial Strength

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

Metric
AAOI
AAOI
OSBC
OSBC
Cash + ST InvestmentsLiquidity on hand
$206.1M
$115.7M
Total DebtLower is stronger
$34.0M
Stockholders' EquityBook value
$733.9M
$893.3M
Total Assets
$1.2B
$6.8B
Debt / EquityLower = less leverage
0.05×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
AAOI
AAOI
OSBC
OSBC
Q1 26
$115.7M
Q4 25
$206.1M
$124.0M
Q3 25
$137.0M
$116.5M
Q2 25
$64.7M
$141.8M
Q1 25
$51.1M
$256.1M
Q4 24
$67.4M
$99.3M
Q3 24
$34.1M
$115.8M
Q2 24
$10.7M
$120.9M
Total Debt
AAOI
AAOI
OSBC
OSBC
Q1 26
Q4 25
$34.0M
Q3 25
Q2 25
Q1 25
$22.1M
Q4 24
$26.7M
Q3 24
$29.5M
Q2 24
$22.5M
Stockholders' Equity
AAOI
AAOI
OSBC
OSBC
Q1 26
$893.3M
Q4 25
$733.9M
$896.8M
Q3 25
$559.1M
$866.7M
Q2 25
$425.0M
$718.6M
Q1 25
$309.0M
$694.5M
Q4 24
$229.1M
$671.0M
Q3 24
$212.1M
$661.4M
Q2 24
$186.5M
$619.3M
Total Assets
AAOI
AAOI
OSBC
OSBC
Q1 26
$6.8B
Q4 25
$1.2B
$6.9B
Q3 25
$978.5M
$7.0B
Q2 25
$796.9M
$5.7B
Q1 25
$644.7M
$5.7B
Q4 24
$547.0M
$5.6B
Q3 24
$410.0M
$5.7B
Q2 24
$348.0M
$5.7B
Debt / Equity
AAOI
AAOI
OSBC
OSBC
Q1 26
Q4 25
0.05×
Q3 25
Q2 25
Q1 25
0.07×
Q4 24
0.12×
Q3 24
0.14×
Q2 24
0.12×

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
OSBC
OSBC
Operating Cash FlowLast quarter
$-29.6M
Free Cash FlowOCF − Capex
$-104.6M
FCF MarginFCF / Revenue
-77.9%
Capex IntensityCapex / Revenue
55.9%
Cash ConversionOCF / Net Profit
TTM Free Cash FlowTrailing 4 quarters
$-353.6M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
AAOI
AAOI
OSBC
OSBC
Q1 26
Q4 25
$-29.6M
$122.3M
Q3 25
$-28.5M
$35.9M
Q2 25
$-65.5M
$24.2M
Q1 25
$-50.9M
$17.8M
Q4 24
$-24.6M
$131.5M
Q3 24
$-14.4M
$48.5M
Q2 24
$-2.0M
$11.6M
Free Cash Flow
AAOI
AAOI
OSBC
OSBC
Q1 26
Q4 25
$-104.6M
$117.8M
Q3 25
$-78.7M
$34.7M
Q2 25
$-91.0M
$23.5M
Q1 25
$-79.3M
$16.2M
Q4 24
$-53.0M
$120.7M
Q3 24
$-20.7M
$46.2M
Q2 24
$-5.0M
$8.7M
FCF Margin
AAOI
AAOI
OSBC
OSBC
Q1 26
Q4 25
-77.9%
123.7%
Q3 25
-66.3%
36.2%
Q2 25
-88.3%
31.2%
Q1 25
-79.4%
22.2%
Q4 24
-52.9%
165.0%
Q3 24
-31.8%
64.9%
Q2 24
-11.5%
12.3%
Capex Intensity
AAOI
AAOI
OSBC
OSBC
Q1 26
Q4 25
55.9%
4.7%
Q3 25
42.4%
1.3%
Q2 25
24.7%
1.1%
Q1 25
28.4%
2.2%
Q4 24
28.3%
14.7%
Q3 24
9.7%
3.3%
Q2 24
6.9%
4.2%
Cash Conversion
AAOI
AAOI
OSBC
OSBC
Q1 26
Q4 25
Q3 25
3.64×
Q2 25
1.11×
Q1 25
0.90×
Q4 24
Q3 24
2.11×
Q2 24
0.53×

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%

OSBC
OSBC

Net Interest Income$81.1M87%
Noninterest Income$12.6M13%

Related Comparisons