How to read an ad tech earnings report

Every quarter, listed ad tech companies publish an earnings report, hold a call with analysts, and watch their share price jump or sink within minutes. The numbers look intimidating, but you only need to understand a handful of them to follow the story. This lesson walks through those numbers and then applies them to a clearly invented company.

An earnings report is like a school report card with a letter from the head teacher. The grades are the numbers. The letter explains why the grades moved and what to expect next term. Investors often care more about the letter, especially the part about next term, than the grades themselves.

Where the documents live

US-listed companies file a quarterly Form 10-Q and an annual Form 10-K with the Securities and Exchange Commission, and usually attach their earnings press release to a Form 8-K. Companies listed elsewhere publish equivalent interim and annual reports with their own regulators. The press release is the quick version; the 10-Q and 10-K contain the detail, including how revenue is recognised and what risks management worries about.

The seven numbers that matter

1. 1. Gross spend (or gross billings)The total advertiser money that flowed through the platform. Not every company discloses it. It shows market share better than revenue does. See gross spend.
2. 2. RevenueWhat the company books as income. For a net reporter, this is its fee. For a gross reporter, it includes money passed on to publishers. Always check which, using gross vs net revenue.
3. 3. Ex-TAC or contribution ex-TACFor companies that pay out much of their revenue to partners, this shows what is left after those payouts. See Contribution ex-TAC and Revenue ex-TAC.
4. 4. Adjusted EBITDAEarnings before interest, tax, depreciation and amortisation, with further items stripped out such as stock-based compensation. It is a non-GAAP measure, so read the reconciliation table. See Adjusted EBITDA.
5. 5. Net income (GAAP)The official bottom line under accounting rules. Many ad tech firms show healthy adjusted EBITDA and much smaller, or negative, net income, often because of stock-based pay.
6. 6. RetentionCustomer retention or net revenue retention tells you whether existing clients stayed and spent more. Above 100% means the average customer grew.
7. 7. GuidanceManagement’s forecast for next quarter or the full year. See guidance. This is often the single biggest driver of the share price reaction.

A worked example (entirely hypothetical)

The company below, “ExampleSSP”, does not exist and the numbers are invented purely to show how the pieces fit. Do not look it up.

Read it like an analyst. Spend grew 18%, which is strong: more advertisers are buying through the platform. Revenue grew only 10%, so the take rate fell from 16% to 15%. That could mean buyers are negotiating harder, perhaps through supply path optimization, or that the mix shifted to cheaper deal types. Profitability improved, because adjusted EBITDA grew faster than revenue. GAAP net income is tiny next to adjusted EBITDA, which suggests large stock-based pay or amortisation from past acquisitions.

Then the warning signs. Net revenue retention slipped from 108% to 104%, so existing customers are expanding more slowly. And guidance of $150–155 million is below what analysts had pencilled in. In a real market, this is the kind of report where the stock might fall sharply after hours despite “record spend”, because investors price the future, not the past.

Why stocks swing so hard

• Expectations, not results: the share price already reflects what analysts expected. A beat that was smaller than hoped can still send it down.
• Guidance dominates: a cut to the full-year forecast usually outweighs a good quarter.
• Take-rate pressure: signs that buyers are squeezing fees worry investors about long-term margins.
• Platform risk: changes by Google, Apple or large retailers can reshape the market overnight, so management commentary on these gets close attention.

Valuation adds another layer. Investors compare companies with market capitalization and ratios such as EV/EBITDA. A company growing quickly with high margins can trade at a far higher multiple than a slower rival, which is why a small change in growth expectations can move its value by billions.