• Ciena average pre-tax profit margin for 2024 was 4.47%, a 34.84% decline from 2023.
• Ciena average pre-tax profit margin for 2023 was 6.86%, a 18.33% decline from 2022.
• Ciena average pre-tax profit margin for 2022 was 8.4%, a 34.98% decline from 2021.

Pre-tax profit margin can be defined as earnings before taxes as a portion of total revenue.