Mobile accounts for 64 percent of inventory, but ROI is less efficient than desktop
The international advertising marketplace Sublime surveyed publishers worldwide about how they monetize their inventory. The survey results clearly show that mobile already accounts for 64 percent of inventory, but when it comes to economic considerations regarding profit expectations, publishers are reaching their limits, and mobile ad formats are often not yet fully developed.
93% of publishers from Sublime's global network surveyed at the beginning of 2019 stated that they already monetize their mobile inventory. 72 percent use the services of a third-party provider for this, while half of the publishers surveyed even manage their available inventory in-house. One in four publishers uses both methods. At 86%, banners are the most frequently monetized advertising format, followed by advertising in the feed (71%) and video (58%).
The biggest obstacle to monetization is the profit expectation, which is too low or unknown for mobile inventory (45%). 40% of publishers also state that they cannot find a suitable advertising format that meets their advertising needs and a quarter of respondents cannot make any concrete statements about the demand for mobile inventory or are unsure. On the other hand, only a minority (8 percent) are held back by a lack of knowledge about how they can monetize their mobile inventory.
When choosing the right advertising format for their website, publishers put the user experience and readability of the content first (45%), followed by the expected profit (41%). In addition, 36 percent state that the advertising format must not significantly impair loading times and navigation. For around a quarter of publishers, it is particularly important to use formats that can be easily integrated into the website (23%).
At the same time, publishers must choose formats that are attractive to advertisers. The majority of publishers (65%) state that the main decision criterion for advertisers is aesthetics: they want formats that do not negatively impact the brand image. Furthermore, more than one in two publishers (53 percent) state that formats that conform to the standards of the Coalition for Better Ads are important to advertisers. Innovative, unusual formats follow closely behind (50 percent), and exciting formats that users can interact with are also in demand (38 percent). Video formats are only of interest to around a quarter of advertisers.
The time spent using mobile devices has risen sharply in recent years. In 2017, users in Germany spent twice as much time on mobile devices as on desktops. (Comscore, Global Digital Future in Focus 2018). At the same time, advertising expenditure for mobile is rising steadily. Current forecasts by Medianetwork Zenith show that spending in Germany will reach a peak of EUR 1.16 billion in 2019. In 2017, advertisers only invested 438 million euros in mobile advertising.
Assen Sarawainow, Commercial Director at Sublime in Germany, is convinced that the target groups of advertising customers will continue to switch from desktop to mobile and that mobile web traffic will increasingly develop into an important source of income.
"Nevertheless, the advertising industry must take into account the growing expectations of publishers. Formats should not obscure content or impair the user experience, and there are already a large number of available and scalable advertising formats. The future of mobile advertising lies in personalization, which enables relevant content, as well as advertising formats that are ideally adapted to the content with our Creative First approach and are played out programmatically efficiently."

















