Guides · Google Ad Grants
Google Ad Grant Impression Share: Why Lost to Rank Reads Over 90%
By the Emprise Digital team · November 4, 2026 · 8 min read
Search lost impression share from rank topped out at Google's 90% cap on every one of the 37 Google Ad Grants we run, so it can't tell you whether your Grant is doing well. Google reports any value above 90% as one number. In the 28 days to November 2, 2026, 77.3% of our Grant campaign-days sat on exactly that number.
A director reads her Grant report
9:05 AM. A nonprofit director opens her Grant account on a Monday and adds the impression share columns. Search lost IS (rank) says more than 90%, and it reads like a failing grade.
She starts to wonder if the ads stopped working, or if the person running them missed something. We see this column on every Grant we manage, and it looks the same on the ones that spend their full credit and on the ones that don't. So we counted it across every Grant we run, twice, to see if it ever tells one account from another.
What we found, in four numbers
- 37 of 37Grants whose highest reading was Google's cap28 days to November 2, 2026
- 77.3%of Grant campaign-days at the cap2,265 of 2,932
- 81.5%at the cap in our first read2,192 of 2,689, 28 days to September 13, 2026
- 0readings above 90% other than the cap itselfacross both reads
What lost impression share from rank means
Google defines it as the share of impressions on the Search Network your ads didn't get because of poor Ad Rank. Ad Rank weighs your bid, the quality of your ads and landing page, Google's thresholds and the context of each search. So on a paid account, a high number usually means you're bidding too low or your ads and pages need work.
There's a catch in how Google reports it. Google's documentation for the Google Ads API gives the range as 0 to 0.9, and it reports any value above 0.9 as 0.9001. Once an account sits above 90%, the column stops telling you how far above it is.
Every Grant we run hits the same cap
We pulled the number for every Search campaign, every day, on every Grant we manage. Each campaign on each day counts once, and we call that a campaign-day.
The cap was the only value above 90% anywhere in either read. Seven campaign-days in the second read showed exactly 90%, which is a real reading just under the cap, so we didn't count those. On 31 of the 37 Grants, the typical campaign-day sat on the cap, and the other six still hit it on some of their days.
Our Grants differ in mission, keywords, landing pages and how much of their credit they spend. The one number they all share is this cap, which is why we don't use it to judge a Grant or decide what to fix.
| Read | Window | Grants | Campaign-days | At the cap |
|---|---|---|---|---|
| First | 28 days to September 13, 2026 | 36 | 2,689 | 2,192 (81.5%) |
| Second | 28 days to November 2, 2026 | 37 | 2,932 | 2,265 (77.3%) |
Better Quality Scores didn't move it
If lost share from rank tracked how good a Grant is, the Grants with the best Quality Scores would sit well below the cap. On November 2, 2026, we checked the 35 Grants that had at least 10 scored keywords.
Our five lowest average Quality Scores
- Averages between 3.2 and 3.7 out of 10.
- At the cap on 78% to 100% of their campaign-days.
- Every one topped out at the cap.
Our highest average Quality Score
- An average of 8.9 out of 10.
- At the cap on 89% of its campaign-days.
- It topped out at the cap too.
Why we don't guess at the cause
We can't see inside Google's auction, so we won't guess at the cause. What we can show is that the cap shows up on every Grant we run, whatever the account looks like, so it measures the program more than it measures your account.
That's useful to know before you change anything because of this column. Ask whoever runs your Grant what they'll do for your spend, your Quality Score parts and your conversions, because those are the numbers that move.
What to read instead
Four numbers tell you more about a Grant than lost share from rank, and you can read all four in your own account.
1
Daily spend against the cap
Google caps a Grant at $329 a day across the whole account. Add up yesterday's spend for every campaign and compare it with that cap, because unspent credit doesn't roll over.
2
Lost share from budget
Google reports this one with the same cap, but it's still useful. It shows whether a campaign's own budget stopped its ads, and a campaign budget below $329 can stop a campaign before the account uses its credit.
3
The three parts of Quality Score
Google grades each keyword on expected click rate, ad relevance and landing page experience. Each one comes back as below average, average or above average, and none of them has a cap.
4
Conversions that mean something
Count the calls, forms and sign-ups that matter to your mission, and check that each one counts once. Google's Grant rules also require conversion tracking on every account.
What the Quality Score parts showed on our Grants
On November 2, 2026, we read the three parts for 1,577 keywords with impressions across 36 of our Grants. The landing page was the part most often graded below average.
Google graded ad relevance below average on few of our keywords. The landing page is where most of the work is, and it's the part you can fix on your own site, since Google grades the page your ad sends people to. Our post on Quality Score explains what each part measures and how to raise it.
| Part of Quality Score | Keywords below average | Share of impressions |
|---|---|---|
| Landing page experience | 58.8% | 53.2% |
| Expected click rate | 39.6% | 33.0% |
| Ad relevance | 11.4% | 5.1% |
Set every campaign budget to the full $329
Google caps the whole Grant at $329 a day, not each campaign. Google's own help page says you can set campaign budgets that add up to more than $329, and your account will never spend more than the daily cap from the Grant. So we set every campaign's budget to the full $329 while the account is still working up to spending its credit.
A lower campaign budget stops that campaign once it's spent, even when the rest of the account has credit left that day. We only lower a campaign's budget later, once the account spends its full cap day after day and we're tuning for cost per click and conversions.
How much of the credit our Grants spent
In October 2026, the 36 Grant accounts we ran all month spent 72.7% of their $10,000 monthly credit on average. 13 of them spent 90% or more, and 8 spent less than half, so we have work left to do on those.
Spending the credit comes first on every Grant we manage, because a Grant that doesn't spend can't reach anyone. Our guide to Google Ad Grants covers how we get a Grant from a slow start to a full month.
Your monthly Grant check
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How we run Grants
We read every Grant we manage each day, and we judge it on spend, click rate, Quality Score parts and conversions. Our Grant management page explains how that works, and our post on a suspended Grant covers the rules that can stop your ads, including the 5% click rate.
If you'd like a second look at your Grant, book a call with Miguel. He'll ask what your Grant spent last month and walk through your spend, lost share from budget, Quality Score parts and conversions with you.
Questions people ask
Why is my Google Ad Grant's search lost impression share from rank over 90%?
Google reports any value above 90% as one number. On the 37 Grants we run, that cap was each account's highest reading in the 28 days to November 2, 2026. It shows up on Grants with high and low Quality Scores alike, so it doesn't tell you much about your own account.
What is a good impression share for a Google Ad Grant?
We don't set a target for lost share from rank on a Grant, because it sits at Google's cap on nearly every Grant we run. Judge the Grant on whether it spends its daily credit, its Quality Score parts and the conversions its clicks bring.
Can I lower lost impression share from rank on a Grant?
You can improve the parts of Ad Rank you control, like your landing page and ads, and you should. In our accounts the number still topped out at the cap, so measure the fix in spend, Quality Score parts and conversions instead.
Can a Grant's campaign budgets add up to more than $329 a day?
Yes. Google's help page says you can set campaign budgets that add up to more than the $329 daily cap, and the Grant will never spend more than that cap. We set every campaign to the full $329 while the account works up to spending its credit.
Is lost share from budget useful on a Grant?
Yes. Google caps it the same way, but it still shows when a campaign's own budget stopped its ads, which points straight at unspent credit.
See how we run Google Ad Grants
Our in-house AI drafts these guides from what our team in Conway sees in the accounts we run. How we write and check them
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