Background
Zacks Investment Research had a long-standing promotional email campaign targeting warm prospects who had previously engaged with their digital content. These were not cold leads or existing customers. They were a retargeted audience already familiar with the brand. Despite that advantage, click rates and conversions had plateaued. The control copy had been in place long enough to become stagnant, and performance reflected it.
What I Did
I began with a detailed audit of the existing control, examining the subject lines, copy structure, and messaging to identify specifically where performance had stalled. Rather than rebuilding from scratch, I took a more targeted approach. I had developed a library of higher-performing promotional emails for Zacks through previous work, so I cross-referenced that copy to identify which elements, subject line approaches, hooks, and structural patterns had consistently moved this audience. I then replaced the underperforming elements in the control with those proven components, making deliberate, evidence-based revisions rather than speculative ones.
Result
Within 30 days, the revised campaign delivered a 400% improvement in conversions compared to the previous control, a result driven by applying what was already working rather than guessing at what might.
