ADTRAN market cap ADTN
Share price times shares outstanding: what the whole company sells for, since 2010.
- Today, Oct 23, 2026
- $523.9M
- Highest close in our data
- $3B
- Mar 2011
ADTRAN is worth $523.9M at the close on Oct 23, 2026, at $6.43 a share.
That is down 35% over the last year and down 42% over five years.
Its highest close in our data was $3B in Mar 2011.
Market cap over time
Year by year
| Year | End of year | Low | High | Change |
|---|---|---|---|---|
| 2026 so far | $523.9M | $514.1M | $1.5B | −25% |
| 2025 | $701M | $580.8M | $923.3M | +8% |
| 2024 | $650.6M | $350.5M | $683.1M | +13% |
| 2023 | $577.7M | $425.8M | $1.5B | −60% |
| 2022 | $1.5B | $849M | $1.9B | +31% |
| 2021 | $1.1B | $754.4M | $1.2B | +57% |
| 2020 | $708.3M | $278.9M | $726.1M | +52% |
| 2019 | $465.8M | $420.9M | $824.6M | −10% |
| 2018 | $515.6M | $501.3M | $948.5M | −45% |
| 2017 | $931.7M | $926.7M | $1.2B | −14% |
| 2016 | $1.1B | $851.4M | $1.1B | +27% |
| 2015 | $853.4M | $731.5M | $1.3B | −29% |
| 2014 | $1.2B | $997.3M | $1.5B | −23% |
| 2013 | $1.6B | $1.2B | $1.6B | +29% |
| 2012 | $1.2B | $990.2M | $2.4B | −37% |
| 2011 | $1.9B | $1.7B | $3B | −16% |
| 2010 | $2.3B | $1.9B | $2.3B | n/a |
Against its peers
Companies in Communication Equipment nearest ADTRAN's size, closest first, today.
| Company | Market cap |
|---|---|
| ADTNADTRAN | $523.9M |
| BKTIBK Technologies | $250.8M |
| AVNWAviat Networks | $245.4M |
| NSSCNapco Security Technologies | $1.4B |
| ATENA10 Networks | $1.8B |
| DGIIDigi International | $2.8B |
| EXTRExtreme Networks | $2.9B |
| ONDSOndas | $3.5B |
| Peer median | $1.8B |
What the market cap tells you
Share price times shares outstanding: what the whole company sells for today.
Size, not quality. Large caps move slower and are covered more. That is all it tells you.
More on ADTRAN
Valuation data, not investment advice. Prices as of . Reported figures come from the company's filings with the SEC.