ALAB vs CIEN: AI Stock Comparison

• “A substantial portion of our revenue is driven by a limited number of our end customers, and the loss of, or a significant reduction in, demand from one or a few of our top end customers…” — 10-K risk factor (filed 2026-02-20) · source
• “We rely on our relationships with leaders in the data center and AI infrastructure ecosystem to test and validate our products at a system level and our inability to continue to develop or…” — 10-K risk factor (filed 2026-02-20) · source

• “Our failure to effectively align our supply chain capacity and inventory levels with customer demand can adversely impact our results of operations and customer relationships.” — 10-K risk factor (filed 2025-12-12) · source
• “Our revenue is concentrated among a small number of customers and reductions in their spending could materially adversely impact our results of operations.” — 10-K risk factor (filed 2025-12-12) · source

Astera Labs' retimers, switches and smart cable modules ship inside AI server racks, so its revenue tracks AI platform deployments closely; its 10-K flags dependence on a few large customers.

Ciena's coherent optical gear connects data centers across metro and long-haul distances. AI training and inference spread across sites drive interconnect demand from cloud providers.