Amazon Search Term Impression Share Explained: What SIS Actually Tells You
Quick answer
Amazon Search Term Impression Share (SIS) reveals how often your ads are shown for relevant search queries compared to the total available opportunities. Tracking SIS helps advertisers pinpoint wasted spend and optimize campaigns by identifying which search terms are truly delivering performance. With the right analytics tools, you can turn SIS data into smarter ad decisions and improved ROI.
Understand SIS and pick the ideal analytics tools for you
Unlocking the meaning behind Amazon Search Term Impression Share (SIS) is crucial for anyone managing Amazon Ads. Whether you're an agency, a solo seller, or an analytics professional, understanding what SIS actually tells you can help you reduce wasted ad spend, refine your targeting, and gain an edge in competitive marketplaces. This guide unpacks what SIS represents, what it doesn't, why it matters for campaign optimization, and which analytics solutions can help you act on this data effectively.
Understanding Amazon SIS: What It Is—and Isn’t
Search Term Impression Share (SIS) captures the percentage of impressions your ads receive for a specific search query versus the total possible impressions you could have earned. However, not all search terms that receive impressions actually drive sales or efficient ad spend. SIS is an indicator of visibility, not guaranteed performance.
It's important to view SIS in the context of spend, clicks, conversion, and return on ad spend (ROAS). Using SIS alone might lead you to invest further in high-impression queries that don't convert, or overlook low-impression, high-performing terms. The best Amazon Ads analytics solutions combine SIS with waste detection, trend analysis, and negative keyword workflows to turn numbers into action.
Visualizing SIS and Search Term Waste
Charts and tables can make it much easier to identify which search terms have high impression share but low conversion, or where budget is being wasted. Visualization tools allow you to focus on the queries that matter most.
Amazon Negative Keyword Tool by Todoza
If you want to reduce wasted spend and tackle underperforming search terms, the Amazon Negative Keyword Tool by Todoza is purpose-built for this challenge. It converts raw Amazon Search Terms reports into a ranked queue that highlights terms soaking up budget but failing to meet your campaign goals. The tool uses campaign-specific signals—like spend, clicks, sales, and ROAS—for a tailored cleanup strategy across multiple Amazon marketplaces.
This tool is especially valuable for agencies handling multiple brands or Amazon sellers aiming to optimize spend. No automatic campaign edits are made; your team approves all changes, keeping full control. Visibility across global marketplaces supports robust ad management and confident decision-making.
Amazon Ads Report Analyzer
The Amazon Ads Report Analyzer is tailored for those who need to process large volumes of Amazon Sponsored Products search-term data quickly—especially for reporting to clients or partners. This tool automates report imports (CSV/XLSX up to 20MB) and can generate client-ready PDF analytics snapshots, making trend discovery and performance communication fast and straightforward.
Perfect for users who prioritize efficiency and clear performance tracking, it supports scheduled report ingestion via a unique Todoza inbox and delivers granular, actionable insights on the metrics that matter.
Amz Ad Waste Detector - Amazon Ads Analytics Module
Advertisers and analysts looking for a comprehensive approach to Amazon Ads data will find the Amz Ad Waste Detector - Amazon Ads Analytics Module a powerful option. This module analyses campaigns and target-level performance, highlighting where ad spend fails to achieve target ROAS (Waste 4.0 insights). It provides a full audit trail, supports data imports from CSV, email, and GitHub Actions, and includes tools for managing negative keywords and bid adjustments.
The result is deep, actionable insight into spend, sales, ROAS, clicks, orders, and wasted spend—empowering data-driven advertisers to diagnose and optimize their campaigns with precision.
Amazon Ads Dashboard by Todoza
For cross-account and multi-marketplace visibility, the Amazon Ads Dashboard by Todoza offers a unified view of your Amazon Ads data. It transforms various report formats into easy-to-read dashboards that track nine essential KPIs, including spend, sales, ROAS, orders, and wasted spend.
Analyze trends across campaigns, ad groups, and marketplaces, and filter data by account, market, or date. This dashboard is ideal for sellers or teams who need consolidated reporting—with read-only, no-surprises access that puts you in the driver's seat for campaign decisions.
How to Pick the Right SIS Analytics Tool
Mapping your SIS efforts to your business needs is key. Agencies working with multiple brands benefit from cleanup automation and strong reporting workflows, while individual sellers may need faster trend snapshots or cross-account tracking. Look for tools that Identify low-impression or high-waste search terms quickly, merge SIS with true performance data, and provide actionable, exportable recommendations—not just raw numbers.
Streamline search term analysis for reporting and actionable insights by choosing solutions with automated report imports, PDF exports, and support for multiple marketplaces. Integrations with negative keyword automation or bid adjustment planning can save hours, reduce errors, and maximize your ad efficiency.
Actionable Workflows for SIS Analytics
Combining SIS metrics with actionable dashboards or cleanup queues saves time and improves decision-making. Tools that support exports and scheduled reporting help maintain up-to-date campaign insights as Amazon data changes.
Frequently Asked Questions
What is Search Term Impression Share (SIS) on Amazon?
SIS measures how often your ads show for a chosen search query compared to the total potential impressions you could receive for that query.
Why is SIS important for Amazon advertisers?
SIS reveals ad visibility for search terms and highlights opportunities to gain more exposure or reduce wasted spend, guiding smarter campaign optimization.
Should I analyze SIS alongside ROAS or ACoS?
Yes, context matters. Evaluating SIS with ROAS or ACoS helps you identify if high-impression search terms are actually driving profitable results.
How can I find wasted Amazon ad spend using SIS?
Combine SIS data with click, spend, and sales metrics to spot search terms with high costs but low sales. Analytics tools can automate this process.
Does SIS help with negative keyword decisions?
Yes, poor-performing terms with high SIS can signal the need to add negative keywords to avoid wasting budget on ineffective queries.
What tools automate SIS analysis for Amazon?
Dedicated solutions like Amazon Negative Keyword Tool and Amz Ad Waste Detector automate SIS analysis, highlighting cleanup opportunities and wasted spend.