Optische Kommunikation

Optical Communications is a theme focused on moving information with light through fiber and photonic devices, underpinning ultra‑high bandwidth, low‑latency connectivity for telecom, cloud, and AI‑era data centers. Core tracks include fiber and subsea infrastructure; coherent/WDM transport; ROADM/OTN systems; 400G/800G pluggable transceivers and DCI; optical amplifiers and lasers; silicon photonics and photonic integrated circuits; FTTH deployment and 5G fronthaul/backhaul.The sector's total market cap is 392.63 billion HKD, with a 24h change of -1.01%. Among 11 constituents, 3 are up (27.27%) and 6 are down (54.55%). The top gainer is SUNNY OPTICAL (02382), with a 24h increase of +3.70%.Broad risk-off as breadth collapses and leadership absent. Near term, stay defensive; buy proven leaders on dips, anchored by earnings visibility and rate trends.