The Trade Desk (NASDAQ:TTD) posted strong third-quarter results after market close on Thursday. Beating top- and bottom-line estimates and raising its full-year outlook, the quarter's performance highlights the ad-buying company's ability to capitalize on rising demand for programmatic advertising from brands and ad agencies.

Even more, The Trade Desk is benefiting from broad-based growth across its advertising channels, with ad spend soaring in mobile video, mobile in-app, connected TV, and audio.

Here's a closer look at the results.

A chalkboard sketch of a bar chart with an arrow highlighting a growth trend.

Image source: Getty Images.

The Trade Desk's third-quarter earnings: Key financial metrics

The Trade Desk's third-quarter revenue rose 38% year over year to $164.2 million. This was ahead of analysts' average forecast for revenue of $163.8 million and management's guidance for revenue of $163 million. Earnings per share rose 15% year over year to $0.75, beating a consensus estimate of $0.67. 

Metric

Q3 2019

Q3 2018

Change

Revenue

$164.2 million

$118.8 million

38%

Non-GAAP earnings per share

$0.75

$0.65

15%

Data source: The Trade Desk third-quarter earnings release. GAAP = general accepted accounting principles.

Adjusted earnings before interest, taxes, depreciation, and amortization (EBITDA) rose 30% year over year to $47.8 million.

"Revenue growth of 38% significantly outpaced worldwide programmatic advertising growth," said The Trade Desk CEO Jeff Green in the tech company's third-quarter earnings call. "The world's leading brands and agencies are increasingly using our platform to apply data-driven strategies to drive precision and value across their campaigns."

Robust channel growth in mobile, audio, and CTV

The Trade Desk's fastest-growing advertising channels continued to see rapid growth in advertiser spend.

Mobile video and mobile in-app ad spend increased 50% and 58% year over year -- about in line with growth rates for these channels in Q2. Total ad spend in the company's mobile channels was 48% of gross spend, up from 46% of gross spend in the year-ago quarter.

Advertiser spend in audio jumped 160% year over year. While this was sharp growth, it marked a deceleration from 270% growth in Q2.

Spending in connected TV (CTV) rose 145% year over year, about in line with 150%-plus growth in Q2.

As usual, Green was particularly optimistic about CTV as a growth driver for the company, giving the channel special attention in the company's earnings release. "TV advertising is the largest campaign segment for many leading brands, and the digitization of TV is driving advertisers to apply data to TV ad campaigns for the first time," Green said. "As more broadcasters make their content available via streaming services, we are better positioned than anyone to take advantage of this significant shift."

Looking ahead

As the "biggest brands in the world continue to shift their advertising spending to programmatic on our platform," Green said he was optimistic about the current quarter. The company lifted its full-year outlook, guiding for revenue of "at least $658 million," up from a previous forecast for revenue of $653 million or more.

In addition, the company said it now expects full-year adjusted EBITDA of $209 million, or about $31.8% of revenue. Management previously expected 2019 adjusted EBITDA of $201 million.