Amazon Share of Voice: How to Measure and Grow SOV
Nishant Singh
TL;DR
Key takeaways
Amazon share of voice (SOV) is the share of search result slots your brand holds for a keyword, split into organic and sponsored.
Amazon reports parts of it natively: top-of-search impression share, search term impression share and Brand Analytics, but not a full page view.
Measure SOV hourly on the keywords that drive revenue. A daily snapshot hides the evening hours when budgets run out.
Act on SOV with placement bids, budgets and dayparting, and automate those moves with guardrails on ACOS.
Amazon share of voice tells you how much of the search page you own for the keywords that matter, compared with every competitor on it.
This guide is for brand and agency teams who already run Sponsored Ads. It covers what SOV is, how to measure and calculate it, what a good number looks like, and how we act on it in the accounts we manage.
What Is Share of Voice on Amazon?
Share of voice (SOV) on Amazon is the percentage of product slots your brand occupies in the search results for a given keyword, at a given time.
If a shopper searches "protein bars" and your brand holds 5 of the 20 slots on the first page, your SOV for that keyword at that moment is 25%.
In advertising generally, SOV means your share of all ad spend or ad impressions in a market. On Amazon the useful version is narrower: visibility on the search results page, keyword by keyword, because that is where most product discovery starts.
Organic vs Sponsored SOV
The first split that matters is where the slots come from.
Organic SOV is your share of the unpaid results. It reflects relevance, sales velocity, reviews and conversion rate, the things the Amazon A9 algorithm rewards.
Sponsored SOV is your share of the ad slots: Sponsored Products, Sponsored Brands and video units. It moves with your bids, budgets and placement settings.
Total SOV combines both. It is the closest thing to "how visible are we on this keyword".
Sponsored slots now take a large share of the page. When Marketplace Pulse counted a typical search in 2022, only 4 of the first 20 products a shopper saw were organic results.
A 2024 study presented at the AAAI/ACM AIES conference analyzed 4,800 simulated Amazon searches. It found products ranked below 100th organically appearing as sponsored results above the top organic results on page one.
The practical point: organic rank alone no longer tells you how visible you are. You need both numbers, side by side.
SOV by Placement
A keyword's results page has distinct zones, and your SOV is different in each one.
Placement | What sits there | What controls your share |
|---|---|---|
Sponsored Brands (top) | Brand logo, headline and products, or a video | Sponsored Brands bids, branded reservation |
Top of search | The first row of Sponsored Products on page one | Base bid plus top-of-search adjustment |
Organic results | Unpaid listings | Relevance, sales history, conversion |
Rest of search | Ads mid-page, bottom of page and page two onward | Base bid plus rest-of-search adjustment |
Video and other units | Sponsored Brands video, editorial and AI shopping units | Creative, bids, listing content |
Amazon's placement help page defines top of search as the top row of first-page results, and rest of search as the middle or bottom of results and page two onward.
SOV by Keyword
SOV is always tied to a keyword. Your brand can own 60% of "kids electric toothbrush" and 3% of "electric toothbrush" on the same day.
That is why an "overall SOV" across hundreds of terms means little on its own. We group keywords into three buckets and track each separately: branded (your brand name), category head terms, and competitor brand terms.
Share of Voice vs Share of Shelf
Some teams use share of shelf for total visibility (organic plus paid) and reserve share of voice for paid only. Others use SOV for both.
The labels matter less than consistency. Pick one definition, write it on your report, and always state whether a number is organic, sponsored or total.
How to Measure Amazon Share of Voice
You can measure SOV three ways: Amazon's own reports, manual sampling, or a tracking tool. Most brands need all three, because each sees a different part of the picture.
What Amazon Provides Natively in 2026
Amazon does not give you a page-level SOV number for a keyword. It does give you four useful pieces.
Top-of-search impression share. The share of top-of-search impressions a campaign won out of those it was eligible for, for Sponsored Products and Sponsored Brands. Amazon's launch note says it uses a 90-day lookback and can lag by about 12 hours.
Search term impression share and rank. A Sponsored Products report in the Report Center. A 20% share means you won 20% of Sponsored Products impressions for that search term on that date; a rank of 3 means you had the third-most impressions.
Brand Analytics, Search Query Performance. For Brand Registry owners, it shows impressions, clicks, cart adds and purchases per query, with your brand's share of each. Amazon's Brand Analytics overview covers the Brand View and ASIN View.
Brand Analytics, Top Search Terms. The three most-clicked products for each search term, with their click share and conversion share. Useful for seeing which competitor wins the clicks.
Each has a gap. Impression share covers only your ads and only your eligible auctions. Search Query Performance blends organic and paid, and only lists queries where you already appeared.
None of them shows you a competitor's ad position at 9 p.m. on a Tuesday. That is the gap a page-level tracker fills. Our guides to Search Query Performance and Amazon Brand Analytics go deeper on the first two.
What Changed in 2025 and 2026
Four changes affect how SOV works today.
Sponsored Brands reserve share of voice (November 2025). Announced at unBoxed 2025, it lets brands reserve top-of-search for exact-match branded keywords at a fixed upfront price. More on this in the brand defense section below.
Prompts are billable (March 2026). Sponsored Products and Sponsored Brands prompts reached general availability in the US on March 25, 2026. Existing campaigns were enrolled automatically, and prompt clicks now bill at CPC.
Rufus is now part of Alexa for Shopping (May 2026). Amazon brought Rufus and Alexa+ together as Alexa for Shopping in May 2026, and existing sponsored ads campaigns are eligible to serve there. Some product discovery now happens inside an AI answer that no rank tracker can count as a "slot".
Rest-of-search bidding is standard. Since January 2024, every placement can take a bid adjustment of up to 900%, so you can buy SOV by placement rather than across the page.
Our post on Sponsored Products and Sponsored Brands AI prompts covers the prompt placements in detail.
Manual Sampling vs Tracking Tools
Manual sampling works for a handful of keywords. Search each term in a logged-out, incognito browser, set the delivery ZIP code to your main market, and count the first page slot by slot.
Its limits show up fast. Results change by location, device, time of day and shopper history, and one person can check maybe 10 keywords twice a day.
A tracking tool samples the page on a schedule, records every slot and brand, and keeps the history. That is the only way to see trends, competitors' patterns and hour-of-day effects across dozens of keywords.
Manual sampling | Tracking tool | |
|---|---|---|
Keywords | 5 to 10 | Dozens to hundreds |
Frequency | Once or twice a day | Hourly or daily |
Competitor history | A spreadsheet, if you keep it | Stored automatically |
Organic vs sponsored split | Yes, by hand | Yes |
Can trigger bid changes | No | Yes, with automation |
Hourly vs Daily SOV Tracking
Sponsored SOV is not stable through the day. When a competitor's daily budget runs out at 7 p.m., their ads disappear and everyone else's share jumps.
The reverse also happens to you. A morning snapshot can show a healthy 40% top-of-search SOV on a day you were absent all evening.
Our rule of thumb: track your 10 to 20 revenue keywords hourly and the long tail daily. Hourly data on the terms that matter catches budget burn, competitor dayparting and launch pushes while you can still react.
How to Calculate Share of Voice on Amazon
The formula is simple. The discipline is in defining what counts as a slot.
SOV = your brand's slots ÷ total slots counted × 100
Run it separately for sponsored and organic slots, then for the total.
A Worked Example
Say you sell protein bars and sample page one for "protein bars" at 10 a.m. The page has 22 product slots: 8 sponsored and 14 organic.
Sponsored SOV: you hold 3 of 8 ad slots, so 3 ÷ 8 = 37.5%.
Organic SOV: you hold 2 of 14 organic slots, so 2 ÷ 14 = 14.3%.
Total SOV: 5 of 22 slots, so 5 ÷ 22 = 22.7%.
Now repeat that every hour. If your sponsored share is 37.5% for 12 hours and 0% for the other 12 because the budget ran out, your daily sponsored SOV is 18.75%, half what the morning check suggested.
Two refinements make the number more honest:
Weight by position. A top-of-search slot gets far more attention than slot 18. Some teams weight slots (for example, 3x for the top row, 2x for the rest of page one above the fold, 1x below). Use the same weights every time or the trend is meaningless.
Weight keywords by search volume. When you roll SOV up across keywords, weight each term by its search volume from Search Query Performance, so a 90% share of a tiny term does not mask a 5% share of your head term.
Count variations of one product once per slot, and decide upfront whether Amazon's own brands and resellers of your product count as "you". Write those rules down.
What Is a Good Share of Voice Percentage?
There is no universal benchmark, and anyone quoting one is guessing. A good SOV depends on the keyword type, the category and your share of sales.
Here is how we set targets in practice:
Keyword type | Typical target | Why |
|---|---|---|
Your brand name | Close to 100% top of search | Anything less is a competitor taking your demand |
Category head term | At or above your share of category sales | Visibility below sales share usually precedes sales loss |
Long-tail product terms | Top 3 organic, plus one ad slot | Cheaper clicks, high intent |
Competitor brand terms | Opportunistic | Bid only where you convert profitably |
The most useful benchmark is your own sales share. Search Query Performance gives you purchase share per query; compare it with your total SOV on the same query.
If your SOV sits well above your purchase share, shoppers see you but choose others, which points at price, reviews or the main image. If SOV sits below purchase share, you convert well and are under-exposed, which is where extra bids pay back best.
Amazon's own data gives a reference point for branded terms. In the US in 2025, advertisers achieved about 62% Sponsored Brands top-of-search impression share on their own branded queries on average, according to Amazon.
How SOV Connects to Sales and Branded Search
SOV is a leading indicator. Visibility moves first; clicks, sales and organic rank follow.
On non-branded terms, sponsored SOV buys traffic that turns into sales, and sales velocity is one of the signals behind organic rank. That is the mechanism behind launching with ads and then pulling bids back once the product ranks.
The loop also runs in reverse. When sponsored SOV drops on a head term, sales on that term fall, and organic rank tends to slip a few weeks later. We watch Amazon sales rank and SOV together for this reason.
Branded search is the other link. Upper-funnel spend (Sponsored Brands video, DSP, Sponsored TV) shows up as more people searching your brand name. If your branded SOV is weak, a competitor captures the demand your awareness spend created.
Do not read SOV in isolation from profit, though. Buying 80% of a generic term at three times your break-even ACOS is visibility you cannot afford. Judge it against TACOS, not ACOS alone.
How to Defend Branded Terms
Your brand name is the keyword you should own. Amazon's own figure of about 62% branded top-of-search share means competitors take a real slice of most brands' own searches.
Three ways to defend it, from cheapest to most certain:
Exact-match brand campaigns. Run Sponsored Products and Sponsored Brands on exact-match branded keywords with their own budgets, so brand defense never competes with prospecting for money.
Top-of-search placement adjustments. Raise the top-of-search adjustment on branded campaigns until top-of-search impression share is near 100%. Branded CPCs are usually low, so this costs less than it sounds.
Sponsored Brands reserve share of voice. For brands that need certainty, Amazon now sells branded top-of-search at a fixed CPM.
Amazon's reserve share of voice guide lists the terms: Brand Registry enrollment, at least five exact-match branded keywords, a minimum of $6,000 per campaign in the US, and 20 Sponsored Brands marketplaces. Generic terms, misspellings and competitor brands are excluded.
In Amazon's beta from May to August 2025, participants' top-of-search impression share on reserved branded queries rose from 62.7% to 99.3%. For a large brand facing heavy conquesting, that is worth pricing out against your current branded CPC spend.
How to Monitor Competitors With SOV
SOV data is the cheapest competitive intelligence you have on Amazon. A tracker records who held each slot, hour by hour, so patterns show up within a week or two.
What we look for:
New entrants. A brand that goes from 0% to 15% sponsored SOV on your head term in a week is launching. Expect higher CPCs.
Dayparting. A competitor whose ads vanish every night at 11 p.m. is capping budgets or dayparting. Those hours are cheaper for you.
Conquesting. A competitor appearing on your branded terms. Check whether they are also on your product pages with Sponsored Display.
Organic gains. A competitor climbing organically without more ad slots is usually winning on price, reviews or a deal.
Pair SOV with Top Search Terms click share to see whether a competitor's visibility is actually winning the clicks.
How to Act on Share of Voice
Measuring SOV is only worth it if it changes what you do with bids, placements and budgets. These are the five moves we make most often, roughly in the order we try them.
1. Use Placement Bid Adjustments
If top-of-search SOV is low but rest-of-search is fine, raise the top-of-search adjustment rather than the base bid. That buys the slot you want without overpaying everywhere else.
Our guide to Amazon placement bid modifiers walks through setting them from the placement report.
2. Fix Budget Gaps Before Raising Bids
When sponsored SOV collapses in the evening, the problem is budget, not bids. Raising bids only makes the budget run out sooner.
Check hourly SOV against hourly spend. If you are out of budget by 6 p.m. on your best keywords, move money from weaker campaigns first.
3. Daypart Around Competitors
If competitors drop out at night and your conversion rate holds, bid up in those hours to take cheap share. If a competitor dominates the lunchtime peak at high CPCs, step back then and buy the shoulders.
Dayparting for Amazon PPC explains how to build the hour-by-day grid from Amazon Marketing Stream data, which Amazon delivers hourly for Sponsored Products.
4. Pull Back Where You Already Own the Page
If you rank top 3 organically and also hold the first ad slot on the same keyword, some of those ad clicks would have come free. Test lowering bids on that term and watch total sales on it, not just ad sales.
This is the cannibalization case, and it is usually most visible on branded and long-tail terms where your organic rank is strongest.
5. Automate the Rules You Repeat
Once you have checked SOV by hand for a month, the same decisions repeat. Raise bids when we drop below target; lower them when we already own the page. Those decisions are rules, and rules can run hourly.
Three rule patterns cover most accounts:
Defend a target share. If top-of-search SOV on a hero keyword is below 25% for two consecutive hours and ACOS is under target, raise the keyword bid 10%, up to a maximum bid.
Push organic rank. If a product is outside the top 10 combined results on a priority term during a launch, raise bids within a launch budget.
Stop paying for free clicks. If the product ranks top 5 organically and top 4 sponsored on the same term, lower the bid 15%. If organic rank falls out of the top 5, restore it.
Guardrails matter more than the triggers. Every SOV rule we run has a maximum bid, an ACOS or TACOS ceiling, and an inventory check, so the rule never buys share for a product that cannot convert.
How to Report Share of Voice
Agencies get asked for SOV reporting more than for almost any other metric, and most reports are a single headline number. A useful SOV report has five parts:
Total, sponsored and organic SOV per keyword group (branded, category, competitor).
The trend over 4 to 12 weeks, with launches, deals and bid changes annotated.
Top competitors by SOV on each group, and who gained or lost.
SOV next to purchase share from Search Query Performance.
What you changed because of it, and what happened next.
The last part is what separates reporting from monitoring. A client should see the actions SOV triggered. Our guide to Amazon advertising reports covers the rest of the reporting stack.
Share of Voice Mistakes We See in Real Accounts
One blended number. Organic and sponsored SOV move for different reasons. Report them separately.
Morning snapshots. A daily check at 10 a.m. measures your best hour, not your day.
Chasing SOV on every keyword. High share on a term that does not convert is expensive vanity. Pick the keywords that drive revenue.
Ignoring branded terms. Brands spend heavily on awareness, then let competitors take the branded search it creates.
Raising bids when the budget is the problem. If ads disappear at 6 p.m., higher bids make them disappear at 4 p.m.
Automation without ceilings. An SOV rule with no maximum bid will pay any price for the slot.
How We Track and Act on SOV in Adbrew
Everything above can be done by hand for a few keywords. Across a full catalog, or a portfolio of client accounts, it needs a system.
Adbrew is an agentic retail media management platform for Amazon and Walmart, and Digital Shelf Analytics is the part of it that tracks the search page. It tracks share of voice and search rank by keyword, across organic results and each sponsored placement, hourly or daily.
This is the Search Rank and SOV view. It shows hourly and daily tracked keywords, total and sponsored SOV, the brand SOV trend over time, and the top brands by share for the selected keywords.
Hourly and daily tracking. The Standard plan includes 10 hourly and 25 daily SOV keywords, with add-ons for more, as listed on our pricing page.
SOV automation. Rules can raise or lower bids, or pause and enable keywords, based on SOV and search rank, with the maximum bid and ACOS guardrails you set.
Competitor and brand views. Keyword by ASIN ranks, top brands per keyword and trends for up to three brands at once.
Connected to the rest of the account. SOV rules sit alongside rulesets, dayparting on Marketing Stream data and retail-aware automation, so the same platform that sees a lost slot can act on it.
Adbrew Intelligence can also answer questions like "which competitor gained SOV on our top 20 keywords last week" from the same data.
Own the Keywords That Pay
Share of voice is worth tracking only on the keywords that pay your bills, and only if you act on what it shows.
Want to see hourly SOV and SOV automation on your own keywords? Book a demo with our team and we'll set up tracking for your top terms.
Frequently Asked Questions
What is share of voice on Amazon?
Share of voice on Amazon is the percentage of search result slots a brand occupies for a keyword compared with all brands shown. It is measured separately for organic results and sponsored ad placements, and combined into a total SOV for that keyword at that time.
How do you calculate Amazon share of voice?
Divide your brand's slots by the total slots counted on the search page, then multiply by 100. For example, 3 of 8 sponsored slots is 37.5% sponsored SOV. Calculate organic, sponsored and total SOV separately, and average hourly samples to get a daily figure.
Does Amazon provide a share of voice report?
Amazon does not provide a full page-level share of voice report. It provides top-of-search impression share for campaigns, a Sponsored Products search term impression share and rank report, and Brand Analytics data with impression, click and purchase share. A tracking tool is needed for organic and competitor slots.
What is a good share of voice on Amazon?
A good Amazon share of voice is close to 100% top-of-search on your own brand terms, and at or above your share of category sales on category head terms. Compare SOV with purchase share from Search Query Performance to see whether you are under-exposed or losing on conversion.
What is Amazon reserve share of voice?
Amazon reserve share of voice is a Sponsored Brands goal, announced in November 2025, that reserves top-of-search placements on exact-match branded keywords at a fixed upfront CPM. It requires Brand Registry, at least five branded keywords and, in the US, a minimum of $6,000 per campaign.
Should share of voice be tracked hourly or daily?
Track the 10 to 20 keywords that drive most revenue hourly, because sponsored share of voice changes through the day as budgets run out and competitors daypart. Daily tracking is enough for long-tail keywords and for monitoring organic rank trends.
What is the difference between share of voice and share of shelf?
Share of shelf usually means total visibility on the first page, organic and sponsored combined, while share of voice sometimes means paid visibility only. Definitions vary between teams, so state on every report whether an Amazon SOV figure is organic, sponsored or total.
How does share of voice automation work on Amazon?
Share of voice automation uses tracked SOV and search rank as triggers for bid, budget or keyword state changes. For example, a rule raises a keyword bid 10% when top-of-search SOV falls below 25% and ACOS is under target. Amazon's console rules do not use share of voice as a trigger, so this runs in third-party platforms.
