Amazon’s Cloud Unit Is What’s on Sale This Prime Day Inc.’s Prime Day may grab headlines, but investors are much more focused on its fast growing cloud-computing and advertising services businesses.

The two-day shopping event, which starts Tuesday, comes as the tech giant’s retail business faces weaker consumer demand amid a looming recession. Bulls, however, say e-commerce headwinds have obscured the still-vibrant trends at cloud computing business Amazon Web Services (AWS) and the advertising services unit.