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Side-by-side financial comparison of APPLIED OPTOELECTRONICS, INC. (AAOI) and Ranger Energy Services, Inc. (RNGR). Click either name above to swap in a different company.

Ranger Energy Services, Inc. is the larger business by last-quarter revenue ($142.2M vs $134.3M, roughly 1.1× APPLIED OPTOELECTRONICS, INC.). On growth, APPLIED OPTOELECTRONICS, INC. posted the faster year-over-year revenue change (33.9% vs -0.6%). Ranger Energy Services, Inc. produced more free cash flow last quarter ($17.1M vs $-104.6M). Over the past eight quarters, APPLIED OPTOELECTRONICS, INC.'s revenue compounded faster (81.7% CAGR vs 1.9%).

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.

Ranger Energy Services, Inc. is a leading North American onshore oilfield services provider. It offers a full suite of well completion, workover, rig operations, and production enhancement solutions for upstream oil and gas operators, primarily serving active unconventional shale and tight resource basins across the continental United States.

AAOI vs RNGR — Head-to-Head

Bigger by revenue
RNGR
RNGR
1.1× larger
RNGR
$142.2M
$134.3M
AAOI
Growing faster (revenue YoY)
AAOI
AAOI
+34.5% gap
AAOI
33.9%
-0.6%
RNGR
More free cash flow
RNGR
RNGR
$121.7M more FCF
RNGR
$17.1M
$-104.6M
AAOI
Faster 2-yr revenue CAGR
AAOI
AAOI
Annualised
AAOI
81.7%
1.9%
RNGR

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
AAOI
AAOI
RNGR
RNGR
Revenue
$134.3M
$142.2M
Net Profit
$3.2M
Gross Margin
31.2%
Operating Margin
-8.6%
2.3%
Net Margin
2.3%
Revenue YoY
33.9%
-0.6%
Net Profit YoY
-44.8%
EPS (diluted)
$-0.02
$0.14

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
RNGR
RNGR
Q4 25
$134.3M
$142.2M
Q3 25
$118.6M
$128.9M
Q2 25
$103.0M
$140.6M
Q1 25
$99.9M
$135.2M
Q4 24
$100.3M
$143.1M
Q3 24
$65.2M
$153.0M
Q2 24
$43.3M
$138.1M
Q1 24
$40.7M
$136.9M
Net Profit
AAOI
AAOI
RNGR
RNGR
Q4 25
$3.2M
Q3 25
$-17.9M
$1.2M
Q2 25
$-9.1M
$7.3M
Q1 25
$-9.2M
$600.0K
Q4 24
$5.8M
Q3 24
$-17.8M
$8.7M
Q2 24
$-26.1M
$4.7M
Q1 24
$-23.2M
$-800.0K
Gross Margin
AAOI
AAOI
RNGR
RNGR
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%
Q1 24
18.7%
Operating Margin
AAOI
AAOI
RNGR
RNGR
Q4 25
-8.6%
2.3%
Q3 25
-15.3%
2.0%
Q2 25
-15.5%
6.1%
Q1 25
-8.9%
0.7%
Q4 24
-6.5%
6.2%
Q3 24
-25.4%
8.4%
Q2 24
-60.7%
5.3%
Q1 24
-53.2%
-0.4%
Net Margin
AAOI
AAOI
RNGR
RNGR
Q4 25
2.3%
Q3 25
-15.1%
0.9%
Q2 25
-8.8%
5.2%
Q1 25
-9.2%
0.4%
Q4 24
4.1%
Q3 24
-27.3%
5.7%
Q2 24
-60.4%
3.4%
Q1 24
-57.0%
-0.6%
EPS (diluted)
AAOI
AAOI
RNGR
RNGR
Q4 25
$-0.02
$0.14
Q3 25
$-0.28
$0.05
Q2 25
$-0.16
$0.32
Q1 25
$-0.18
$0.03
Q4 24
$-2.82
$0.24
Q3 24
$-0.42
$0.39
Q2 24
$-0.66
$0.21
Q1 24
$-0.60
$-0.03

Balance Sheet & Financial Strength

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

Metric
AAOI
AAOI
RNGR
RNGR
Cash + ST InvestmentsLiquidity on hand
$206.1M
$10.3M
Total DebtLower is stronger
$34.0M
Stockholders' EquityBook value
$733.9M
$300.1M
Total Assets
$1.2B
$419.3M
Debt / EquityLower = less leverage
0.05×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
AAOI
AAOI
RNGR
RNGR
Q4 25
$206.1M
$10.3M
Q3 25
$137.0M
$45.2M
Q2 25
$64.7M
$48.9M
Q1 25
$51.1M
$40.3M
Q4 24
$67.4M
$40.9M
Q3 24
$34.1M
$14.8M
Q2 24
$10.7M
$8.7M
Q1 24
$8.4M
$11.1M
Total Debt
AAOI
AAOI
RNGR
RNGR
Q4 25
$34.0M
Q3 25
Q2 25
Q1 25
$22.1M
Q4 24
$26.7M
$0
Q3 24
$29.5M
$0
Q2 24
$22.5M
$0
Q1 24
$24.1M
$0
Stockholders' Equity
AAOI
AAOI
RNGR
RNGR
Q4 25
$733.9M
$300.1M
Q3 25
$559.1M
$270.0M
Q2 25
$425.0M
$276.9M
Q1 25
$309.0M
$272.6M
Q4 24
$229.1M
$273.8M
Q3 24
$212.1M
$267.6M
Q2 24
$186.5M
$260.5M
Q1 24
$195.7M
$261.7M
Total Assets
AAOI
AAOI
RNGR
RNGR
Q4 25
$1.2B
$419.3M
Q3 25
$978.5M
$372.8M
Q2 25
$796.9M
$381.7M
Q1 25
$644.7M
$376.5M
Q4 24
$547.0M
$381.6M
Q3 24
$410.0M
$373.9M
Q2 24
$348.0M
$359.6M
Q1 24
$350.9M
$355.5M
Debt / Equity
AAOI
AAOI
RNGR
RNGR
Q4 25
0.05×
Q3 25
Q2 25
Q1 25
0.07×
Q4 24
0.12×
0.00×
Q3 24
0.14×
0.00×
Q2 24
0.12×
0.00×
Q1 24
0.12×
0.00×

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
RNGR
RNGR
Operating Cash FlowLast quarter
$-29.6M
$24.1M
Free Cash FlowOCF − Capex
$-104.6M
$17.1M
FCF MarginFCF / Revenue
-77.9%
12.0%
Capex IntensityCapex / Revenue
55.9%
4.9%
Cash ConversionOCF / Net Profit
7.53×
TTM Free Cash FlowTrailing 4 quarters
$-353.6M
$42.9M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
AAOI
AAOI
RNGR
RNGR
Q4 25
$-29.6M
$24.1M
Q3 25
$-28.5M
$13.6M
Q2 25
$-65.5M
$20.7M
Q1 25
$-50.9M
$10.6M
Q4 24
$-24.6M
$32.7M
Q3 24
$-14.4M
$17.7M
Q2 24
$-2.0M
$22.1M
Q1 24
$-28.5M
$12.0M
Free Cash Flow
AAOI
AAOI
RNGR
RNGR
Q4 25
$-104.6M
$17.1M
Q3 25
$-78.7M
$8.0M
Q2 25
$-91.0M
$14.4M
Q1 25
$-79.3M
$3.4M
Q4 24
$-53.0M
$27.3M
Q3 24
$-20.7M
$10.8M
Q2 24
$-5.0M
$6.8M
Q1 24
$-34.2M
$5.5M
FCF Margin
AAOI
AAOI
RNGR
RNGR
Q4 25
-77.9%
12.0%
Q3 25
-66.3%
6.2%
Q2 25
-88.3%
10.2%
Q1 25
-79.4%
2.5%
Q4 24
-52.9%
19.1%
Q3 24
-31.8%
7.1%
Q2 24
-11.5%
4.9%
Q1 24
-84.2%
4.0%
Capex Intensity
AAOI
AAOI
RNGR
RNGR
Q4 25
55.9%
4.9%
Q3 25
42.4%
4.3%
Q2 25
24.7%
4.5%
Q1 25
28.4%
5.3%
Q4 24
28.3%
3.8%
Q3 24
9.7%
4.5%
Q2 24
6.9%
11.1%
Q1 24
14.2%
4.7%
Cash Conversion
AAOI
AAOI
RNGR
RNGR
Q4 25
7.53×
Q3 25
11.33×
Q2 25
2.84×
Q1 25
17.67×
Q4 24
5.64×
Q3 24
2.03×
Q2 24
4.70×
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%

RNGR
RNGR

High Specification Rigs$92.3M65%
Processing Solutions And Ancillary Services$37.5M26%
Wireline Services$12.4M9%

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