Telephone & Telegraph Apparatus stocks: intrinsic value, ROIC & growth
9 U.S. telephone & telegraph apparatus companies with at least three years of SEC filings, ranked by size. 3 of the 6 with a current price trade below their Graham intrinsic value. The median company earned a 11.1% average return on invested capital and grew revenue 6.1% a year.
Updated October 18, 2026
9companies
3below Graham value
11.1%median 10-yr ROIC
6.1%median revenue CAGR
Highest-ROIC telephone & telegraph apparatus stocks
| Ticker | Company | 10-yr ROIC | Price | Graham value | Price vs value | Market cap | ROIC (10y) | Revenue CAGR |
|---|---|---|---|---|---|---|---|---|
| FN | Fabrinet | 18.0% | $363.51 | $304.59 | 19% above | $13.2B | 18.0% | 14.9% |
| CLFD | Clearfield, Inc. | 11.4% | $29.47 | $45.76 | 36% below | $412.3M | 11.4% | 8.0% |
| CIEN | Ciena | 11.1% | $332.73 | $14.80 | 2148% above | $48.3B | 11.1% | 7.0% |
All telephone & telegraph apparatus stocks
| Ticker | Company | Price | Graham value | Price vs value | Market cap | ROIC (10y) | Revenue CAGR |
|---|---|---|---|---|---|---|---|
| CIEN | Ciena | $332.73 | $14.80 | 2148% above | $48.3B | 11.1% | 7.0% |
| FN | Fabrinet | $363.51 | $304.59 | 19% above | $13.2B | 18.0% | 14.9% |
| ADTN | ADTRAN Holdings, Inc. | $6.31 | $0.89 | 609% above | $503.2M | -19.6% | 6.1% |
| CLFD | Clearfield, Inc. | $29.47 | $45.76 | 36% below | $412.3M | 11.4% | 8.0% |
| FKWL | FRANKLIN WIRELESS CORP | $2.25 | $3.70 | 39% below | $26.5M | 34.1% | -2.9% |
| FIEE | FiEE, Inc. | $3.55 | — | — | $25.1M | 5976.0% | -11.1% |
| VPLM | Voip-pal.com Inc | $0.00 | — | — | $9.2M | -499.5% | — |
| CLRO | CLEARONE INC | $2.99 | — | — | $5.3M | -18.0% | -16.6% |
| SONM | DNA X, Inc. | $3.27 | $533.58 | 99% below | $2.4M | -248.4% | -15.1% |
Stock lists
Undervalued Stocks Below Graham Intrinsic Value
Highest ROIC Stocks (10-Year Average)
Highest Free Cash Flow Yield Stocks
Fastest-Growing Stocks by 10-Year Revenue