How a Boating Brand Increased Seasonal Sales by 104% on Amazon

This US-based marine supplies company specializes in boat winterization products, including shrink wrap systems, heat tools, and accessories. Operating a hybrid model of private-label and reseller products, the business manages a mid-sized catalog in a highly seasonal category where performance during a short fall window determines annual success.

The Challenge

The brand operated in a high-demand seasonal category, but performance was constrained by inconsistent Buy Box ownership. Across top products, Buy Box share remained limited, restricting the brand’s ability to fully capture demand and scale advertising efficiently.

This issue was amplified by the hybrid catalog structure. Because the business operated both private-label and reseller listings, Buy Box volatility created inconsistencies in attribution—particularly across upper-funnel formats—making performance harder to measure and optimize.

Despite strong product-market fit, these limitations prevented the account from maximizing its most important revenue window. With the majority of annual sales concentrated in a three-month period, underperformance during peak season posed a significant risk to overall growth.

Why Quartile

The brand needed a strategy that addressed both operational and advertising constraints—not just campaign optimization.

Quartile provided a structured approach that connected Buy Box ownership directly to advertising performance. By aligning pricing, fulfillment, and campaign strategy, Quartile helped ensure that increased demand could be captured efficiently.

Equally important, Quartile brought discipline to seasonal execution. Instead of optimizing for steady efficiency, the strategy focused on building momentum ahead of peak demand and scaling aggressively when it mattered most.

The Solution

Quartile implemented a three-part strategy designed to unlock performance during the peak season window.

First, Buy Box ownership was addressed as a foundational priority. Working closely with the client, pricing and delivery improvements were introduced to increase competitiveness across top products. Listing optimizations further supported stronger Buy Box consistency, ensuring the brand could reliably capture demand driven by advertising.

Next, the campaign structure was rebuilt around Sponsored Products. Campaigns were segmented by core product categories—including shrink wraps, heat tools, propane tanks, and accessories—to improve control and clarity. This shift reduced reliance on formats where attribution was impacted by Buy Box volatility, allowing for more accurate performance optimization.

Finally, Quartile introduced a seasonal acceleration strategy. Rather than maintaining conservative efficiency targets, the account intentionally increased investment ahead of and during peak months. Budget allocation and product prioritization were dynamically adjusted to align with demand, ensuring maximum visibility during the critical September through November period.

This approach reframed the objective: not steady performance, but peak-season dominance.

Results & Impact

During the 2025 peak season, the strategy delivered a step change in performance:

• Total sales increased by 104%, doubling revenue during the most critical period  

• Ad-attributed sales increased by 206%, reflecting stronger demand capture and improved visibility  

• Total Advertising Cost of Sale (TACOS) was intentionally increased to support scale, resulting in significantly higher overall revenue  

• The account successfully translated improved Buy Box ownership into measurable advertising gains  

These results demonstrate that in highly seasonal categories, aligning operational fundamentals with aggressive, well-timed investment can unlock disproportionate growth.

Ongoing Value & Future State

With a repeatable seasonal framework now in place, the brand is positioned to approach future peak periods with greater control and confidence.

Quartile continues to support Buy Box stability, campaign optimization, and seasonal planning—ensuring the business can consistently maximize its most important revenue window while maintaining operational alignment.