P/E ratio for ADTRAN (ADTN)
P/E ratio as of March 2023 (TTM): -310
According to ADTRAN's latest financial reports and stock price the company's current price-to-earnings ratio (TTM) is -310. At the end of 2021 the company had a P/E ratio of -127.
P/E ratio history for ADTRAN from 2001 to 2022
PE ratio at the end of each year
| Year | P/E ratio | Change |
|---|---|---|
| 2021 | -127 | -142.94% |
| 2020 | 295 | -3355.67% |
| 2019 | -9.07 | -68.74% |
| 2018 | -29.0 | -175.01% |
| 2017 | 38.7 | 26.4% |
| 2016 | 30.6 | -34.22% |
| 2015 | 46.5 | 72.93% |
| 2014 | 26.9 | -21.28% |
| 2013 | 34.2 | 29.48% |
| 2012 | 26.4 | 89.11% |
| 2011 | 14.0 |
P/E ratio for similar companies or competitors
| Company | P/E ratio | P/E ratio differencediff. | Country |
|---|---|---|---|
 Cisco CSCO | 18.4 | -105.94% | 🇺🇸 USA |
 Juniper Networks
JNPR | 22.3 | -107.20% | 🇺🇸 USA |
 Extreme Networks
EXTR | 46.8 | -115.09% | 🇺🇸 USA |
 Ericsson ERIC | 7.76 | -102.50% | 🇸🇪 Sweden |
 AudioCodes AUDC | 16.1 | -105.18% | 🇮🇱 Israel |
 Ciena CIEN | 41.6 | -113.43% | 🇺🇸 USA |
 Calix CALX | 79.9 | -125.77% | 🇺🇸 USA |
How to read a P/E ratio?
The Price/Earnings ratio measures the relationship between a company's stock price and its earnings per share. A low but positive P/E ratio stands for a company that is generating high earnings compared to its current valuation and might be undervalued. A company with a high negative (near 0) P/E ratio stands for a company that is generating heavy losses compared to its current valuation.
Companies with a P/E ratio over 30 or a negative one are generaly seen as "growth stocks" meaning that investors typically expect the company to grow or to become profitable in the future.
Companies with a positive P/E ratio bellow 10 are generally seen as "value stocks" meaning that the company is already very profitable and unlikely to strong growth in the future.