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Side-by-side financial comparison of ADTRAN Holdings, Inc. (ADTN) and SL GREEN REALTY CORP (SLG). Click either name above to swap in a different company.

ADTRAN Holdings, Inc. is the larger business by last-quarter revenue ($291.6M vs $276.5M, roughly 1.1× SL GREEN REALTY CORP). ADTRAN Holdings, Inc. runs the higher net margin — -1.2% vs -36.5%, a 35.2% gap on every dollar of revenue. On growth, ADTRAN Holdings, Inc. posted the faster year-over-year revenue change (20.1% vs 12.4%). Over the past eight quarters, SL GREEN REALTY CORP's revenue compounded faster (21.3% CAGR vs 13.5%).

Adtran, Inc. is an American fiber networking and telecommunications company headquartered in Huntsville, Alabama. It is a vendor of both residential and enterprise networking equipment, along with administrative software for network management and deployment. Its customers include communications service providers, governments, enterprises and utilities.

SL Green Realty Corp. is a real estate investment trust that primarily invests in office buildings and shopping centers in New York City. As of December 31, 2024, the company owned interests in 39 properties comprising 25,297,353 square feet, primarily in Manhattan. It has been referred to as "New York City’s largest office landlord".

ADTN vs SLG — Head-to-Head

Bigger by revenue
ADTN
ADTN
1.1× larger
ADTN
$291.6M
$276.5M
SLG
Growing faster (revenue YoY)
ADTN
ADTN
+7.6% gap
ADTN
20.1%
12.4%
SLG
Higher net margin
ADTN
ADTN
35.2% more per $
ADTN
-1.2%
-36.5%
SLG
Faster 2-yr revenue CAGR
SLG
SLG
Annualised
SLG
21.3%
13.5%
ADTN

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
ADTN
ADTN
SLG
SLG
Revenue
$291.6M
$276.5M
Net Profit
$-3.6M
$-100.8M
Gross Margin
39.0%
Operating Margin
1.5%
64.2%
Net Margin
-1.2%
-36.5%
Revenue YoY
20.1%
12.4%
Net Profit YoY
92.2%
-870.0%
EPS (diluted)
$-0.02
$-1.49

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
ADTN
ADTN
SLG
SLG
Q4 25
$291.6M
$276.5M
Q3 25
$279.4M
$244.8M
Q2 25
$265.1M
$241.9M
Q1 25
$247.7M
$239.8M
Q4 24
$242.9M
$245.9M
Q3 24
$227.7M
$229.7M
Q2 24
$226.0M
$222.8M
Q1 24
$226.2M
$187.9M
Net Profit
ADTN
ADTN
SLG
SLG
Q4 25
$-3.6M
$-100.8M
Q3 25
$-10.3M
$28.6M
Q2 25
$-20.5M
$-7.4M
Q1 25
$-11.3M
$-17.3M
Q4 24
$-46.1M
$19.1M
Q3 24
$-33.3M
$-9.5M
Q2 24
$-49.7M
$1.6M
Q1 24
$-330.8M
$16.9M
Gross Margin
ADTN
ADTN
SLG
SLG
Q4 25
39.0%
Q3 25
38.3%
Q2 25
37.3%
Q1 25
38.4%
Q4 24
36.9%
Q3 24
36.5%
Q2 24
36.0%
Q1 24
31.1%
Operating Margin
ADTN
ADTN
SLG
SLG
Q4 25
1.5%
64.2%
Q3 25
-1.0%
85.5%
Q2 25
-5.0%
53.4%
Q1 25
-1.6%
56.7%
Q4 24
-6.9%
59.8%
Q3 24
-11.5%
65.1%
Q2 24
-17.0%
79.2%
Q1 24
-153.1%
Net Margin
ADTN
ADTN
SLG
SLG
Q4 25
-1.2%
-36.5%
Q3 25
-3.7%
11.7%
Q2 25
-7.7%
-3.0%
Q1 25
-4.5%
-7.2%
Q4 24
-19.0%
7.8%
Q3 24
-14.6%
-4.2%
Q2 24
-22.0%
0.7%
Q1 24
-146.2%
9.0%
EPS (diluted)
ADTN
ADTN
SLG
SLG
Q4 25
$-0.02
$-1.49
Q3 25
$-0.12
$0.34
Q2 25
$-0.24
$-0.16
Q1 25
$-0.14
$-0.30
Q4 24
$-0.58
$0.13
Q3 24
$-0.38
$-0.21
Q2 24
$-0.63
$-0.04
Q1 24
$-4.20
$0.20

Balance Sheet & Financial Strength

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

Metric
ADTN
ADTN
SLG
SLG
Cash + ST InvestmentsLiquidity on hand
$95.7M
$155.7M
Total DebtLower is stronger
Stockholders' EquityBook value
$145.8M
$3.7B
Total Assets
$1.2B
$11.1B
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
ADTN
ADTN
SLG
SLG
Q4 25
$95.7M
$155.7M
Q3 25
$93.7M
$187.0M
Q2 25
$106.3M
$182.9M
Q1 25
$101.3M
$180.1M
Q4 24
$76.0M
$184.3M
Q3 24
$88.5M
$188.2M
Q2 24
$111.2M
$199.5M
Q1 24
$106.8M
$196.0M
Stockholders' Equity
ADTN
ADTN
SLG
SLG
Q4 25
$145.8M
$3.7B
Q3 25
$141.6M
$3.8B
Q2 25
$169.6M
$3.8B
Q1 25
$138.9M
$3.8B
Q4 24
$127.0M
$4.0B
Q3 24
$205.6M
$3.6B
Q2 24
$213.6M
$3.7B
Q1 24
$260.8M
$3.7B
Total Assets
ADTN
ADTN
SLG
SLG
Q4 25
$1.2B
$11.1B
Q3 25
$1.2B
$11.1B
Q2 25
$1.2B
$11.3B
Q1 25
$1.2B
$11.4B
Q4 24
$1.2B
$10.5B
Q3 24
$1.3B
$10.2B
Q2 24
$1.3B
$9.5B
Q1 24
$1.3B
$9.8B

Cash Flow & Capital Efficiency

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

Metric
ADTN
ADTN
SLG
SLG
Operating Cash FlowLast quarter
$42.2M
$82.9M
Free Cash FlowOCF − Capex
$30.6M
FCF MarginFCF / Revenue
10.5%
Capex IntensityCapex / Revenue
4.0%
Cash ConversionOCF / Net Profit
TTM Free Cash FlowTrailing 4 quarters
$98.0M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
ADTN
ADTN
SLG
SLG
Q4 25
$42.2M
$82.9M
Q3 25
$12.2M
$-6.8M
Q2 25
$32.2M
$54.5M
Q1 25
$43.2M
$6.7M
Q4 24
$2.4M
$129.6M
Q3 24
$43.3M
$16.7M
Q2 24
$19.9M
$79.4M
Q1 24
$37.9M
$-24.7M
Free Cash Flow
ADTN
ADTN
SLG
SLG
Q4 25
$30.6M
Q3 25
$4.2M
Q2 25
$27.5M
Q1 25
$35.8M
Q4 24
$-895.0K
Q3 24
$37.1M
Q2 24
$8.4M
Q1 24
$24.4M
FCF Margin
ADTN
ADTN
SLG
SLG
Q4 25
10.5%
Q3 25
1.5%
Q2 25
10.4%
Q1 25
14.4%
Q4 24
-0.4%
Q3 24
16.3%
Q2 24
3.7%
Q1 24
10.8%
Capex Intensity
ADTN
ADTN
SLG
SLG
Q4 25
4.0%
Q3 25
2.9%
Q2 25
1.8%
Q1 25
3.0%
Q4 24
1.4%
Q3 24
2.7%
Q2 24
5.1%
Q1 24
6.0%
Cash Conversion
ADTN
ADTN
SLG
SLG
Q4 25
Q3 25
-0.24×
Q2 25
Q1 25
Q4 24
6.77×
Q3 24
Q2 24
50.33×
Q1 24
-1.46×

Financial Flow Comparison

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

Revenue Breakdown by Segment

ADTN
ADTN

Subscriber Solutions$96.2M33%
Optical Networking Solutions$81.8M28%
Access Aggregation Solutions$64.6M22%
Services And Support$48.9M17%

SLG
SLG

Real Estate Segment$223.1M81%
Other$35.9M13%
Debt And Preferred Equity Segment$17.4M6%

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