How a Seed-Stage Marketplace Dropped Listings and Increased GMV by 18%

Tech · 5 min read

When a niche marketplace for refurbished lab equipment hit friction in conversion funnels, the product team hypothesized choice overload was a key blocker. The platform had been showing 24 items per grid page with dense specs; engagement metrics suggested users scrolled a long way but rarely clicked through. The team designed a hypothesis: fewer, higher-quality surface items with richer signals would increase click-through and purchase intent.

The redesign reduced the grid to 8 curated cards per page and introduced three new surface elements: seller trust badges, a short explainer of warranty terms, and a prominent “compare” affordance. The team ran a 4-week A/B test with randomized traffic split and tracked micro-conversions — card clicks, add-to-compare, and checkout starts — while monitoring long-term supplier exposure impacts.

Results showed an 18% increase in GMV per session and a 12% increase in average order value. Supplier-level churn was a concern, so product introduced a supplier dashboard that rotated which inventory received curated slots and surfaced conversion analytics. The lesson: for two-sided marketplaces, pruning selection at the UI level can increase demand when paired with clear trust signals and transparent rotation metrics for suppliers.