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Side-by-side financial comparison of ADTRAN Holdings, Inc. (ADTN) and TELEFONICA BRASIL S.A. (VIV), based on the latest 10-Q / 10-K filings. Click either name above to swap in a different company.

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.

Telefônica Brasil, trading as Vivo, is a Brazilian telecommunications group, subsidiary of Spanish Telefónica.

8-Quarter Revenue & Profit Trend

Side-by-side quarterly history — bar widths are scaled to the larger of the two companies so you can eyeball the size gap and growth trajectory without doing math. Quarters aligned by calendar period (report date) so offset fiscal years line up.

Revenue
ADTN
ADTN
VIV
VIV
Q4 25
$291.6M
Q3 25
$279.4M
Q2 25
$265.1M
Q1 25
$247.7M
Q4 24
$242.9M
Q3 24
$227.7M
Q2 24
$226.0M
Q1 24
$226.2M
Net Profit
ADTN
ADTN
VIV
VIV
Q4 25
$-3.6M
Q3 25
$-10.3M
Q2 25
$-20.5M
Q1 25
$-11.3M
Q4 24
$-46.1M
Q3 24
$-33.3M
Q2 24
$-49.7M
Q1 24
$-330.8M
Gross Margin
ADTN
ADTN
VIV
VIV
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
VIV
VIV
Q4 25
1.5%
Q3 25
-1.0%
Q2 25
-5.0%
Q1 25
-1.6%
Q4 24
-6.9%
Q3 24
-11.5%
Q2 24
-17.0%
Q1 24
-153.1%
Net Margin
ADTN
ADTN
VIV
VIV
Q4 25
-1.2%
Q3 25
-3.7%
Q2 25
-7.7%
Q1 25
-4.5%
Q4 24
-19.0%
Q3 24
-14.6%
Q2 24
-22.0%
Q1 24
-146.2%
EPS (diluted)
ADTN
ADTN
VIV
VIV
Q4 25
$-0.02
Q3 25
$-0.12
Q2 25
$-0.24
Q1 25
$-0.14
Q4 24
$-0.58
Q3 24
$-0.38
Q2 24
$-0.63
Q1 24
$-4.20

Financial Flow Comparison

Sankey diagram of revenue → gross profit → operating profit → net profit for each company. Charts shown full-width and stacked so both segment hierarchies are readable side-by-side on desktop and mobile.

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