Fiber Optics Stocks
Infrastructure providers and component manufacturers in this sector build the physical layer of global telecommunications through high-capacity glass cabling and photonics technology. Revenue models range from recurring broadband subscriptions and dark fiber leasing to the specialized manufacturing of optical transceivers and high-speed connectors.
As of Oct 23, 2026, Fiber Optics has 33 US-listed companies worth $1.1T combined. The median member moved -1.1% over the past week; AMX led among the 25 largest at +7.2% and ITG trailed at -12.4%.
Companies in Fiber Optics
- VZ – Verizon Communications Inc, $186B
- APH – Amphenol Corporation, $183B
- TMUS – T-Mobile US Inc, $157B
- T – AT&T Inc., $156B
- GLW – Corning Incorporated, $107B
- CMCSA – Comcast Corp, $81.1B
- AMX – America Movil SAB de CV ADR, $74.6B
- CIEN – Ciena Corp, $45.8B
- FJIKY – Fujikura Ltd, $41.6B
- VIAV – Viavi Solutions Inc, $8.7B
- DY – Dycom Industries Inc, $6.8B
- AAOI – Applied Opt, $5.7B
- LUMN – Lumen Technologies, Inc. Common Stock, $4.6B
- LBTYB – Liberty Global PLC Class B, $4.2B
- BDC – Belden Inc, $4B
- TDS – Telephone and Data Systems Inc, $3.9B
- DBRG – Digitalbridge Group Inc, $3B
- LILA – Liberty Latin America Ltd, $1.7B
- UNIT – Uniti Group Inc, $1.5B
- VISN – Vistance Networks, Inc., $1.3B
- GLIBK – GCI Liberty, Inc., $945M
- ITG – ITG, Inc. Class A Common Stock, $852M
- LWLG – Lightwave Logic Inc, $612M
- ADTN – ADTRAN Inc, $610M
- SHEN – Shenandoah Telecommunications Co, $601M
- CLFD – Clearfield Inc, $455M
- ATNI – ATN International Inc, $442M
- CCOI – Cogent Communications Group Inc, $397M
- BOC – Boston Omaha Corp, $363M
- OCC – Optical Cable Corporation, $126M
- TCX – Tucows Inc., $107M
- RFIL – RF Industries Ltd, $76.7M
- CRKN – Crown Electrokinetics Corp., $18,251