FiveX knowledge hub

Marketplace profitability & retail media glossary

FiveX explains marketplace and retail media concepts through their impact on product-level profitability and operational decisions. Use this glossary to move from definitions to diagnosis.

Direct answer

What this glossary is for

This glossary is a knowledge hub for marketplace operators, retail media teams, agencies and finance partners. It defines metrics and concepts through SKU economics, fees, advertising, inventory and Buy Box reality—so terms stay usable in weekly operating decisions, not only in vocabulary lists.

  • Start with ACOS, TACoS, contribution margin, marketplace profitability and retail media.
  • Every Tier 1 term should explain calculation, limits and related decisions.
  • Frameworks and solutions are linked after the definition, not instead of it.
  • Thin synonym pages are intentionally avoided; supporting terms stay on hubs when needed.
Browse

Find a marketplace term

Search works on term names, abbreviations and short definitions. The full list below stays in the HTML for crawlers and for users without JavaScript.

Themes

Browse by theme

Categories group related operating concepts. Use them as a reading path from definition to decision.

Marketplace profitability

Product-level profit, contribution margin and operating economics.

Retail media and advertising

Retailer-owned media, placements and advertising economics.

Amazon advertising metrics

ACOS, TACoS, ROAS and related efficiency ratios.

Product and SKU economics

Unit economics, landed cost and SKU P&L concepts.

Marketplace fees and costs

Referral, fulfillment, storage and related fee concepts.

Pricing and Buy Box

Offer competitiveness, repricing and Buy Box dynamics.

Marketplace operations

Operational loops that change how metrics should be read.

Analytics and reporting

Reporting latency, reconciliation and metric definition.

Advanced marketplace intelligence

FiveX proprietary and advanced operating concepts.

A–Z

All glossary terms

15 published definitions. Every entry below is server-rendered.

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FAQ

Comparison questions

What terms are included in the FiveX glossary?

The glossary covers marketplace profitability, TACoS, ACOS, ROAS, contribution margin, retail media, Buy Box, marketplace fees and proprietary FiveX concepts.

Should all glossary pages be indexed?

No. Index the strongest, most connected concepts first and keep thin or experimental entries in review.

How do glossary pages support GEO?

They provide concise definitions and relationships that AI systems can retrieve and summarize.

Compare your marketplace workflow with FiveX

Bring your current advertising, analytics and reporting setup. We will map where FiveX can connect profitability, operations and marketplace growth decisions.