Thank you for the opportunity to help you with your question!
Verticle segmentation is a term used in marketing when you narrow your selling focus to a smaller group and target specific customers within a specific demographic. On the other hand, traditional segmentation is not specifically pointing out a particular customer demographic and only focusing on them but focusing on all areas of the potential customer demographics, despite still separating them into smaller groups for more efficiency.
Please let me know if you need any clarification. I'm always happy to answer your questions.