
We’re excited to introduce the next segment in our Q&A series, Ask the Expert! Ask the Expert features a series of conversations with product experts where we dive into the areas you care most about like identity resolution, targeting, attribution, and more. Our next segment features a conversation about sell-side targeting.
Mike Chowla, SVP of Product at OpenX joins us to chat with Experian’s SVP of Sales & Partnerships, Chris Feo. OpenX is the world’s leading sell-side platform for audience, data, and identity targeting. In their conversation, Mike and Chris review:
- The shift to targeting on the sell-side
 - How first- and third-party data are being used on the sell-side
 - How OpenX is thinking about alternative IDs
 

What is sell-side targeting?
Sell-side targeting optimizes the way buyers and supply-side platforms (SSPs) work together. This approach moves the responsibility of inventory and audience targeting from the demand-side platform (DSP) into the SSP, providing advertisers with increased reach and better performance.
With sell-side targeting, locating your target audience becomes easier as you have a more direct connection with publishers. This increases your ability to scale against a target audience. Specifically, the SSP directly matches the buyer’s audience or data segment to the publisher inventory and audience and automatically sends the impression to the buyer’s DSP of choice via a deal ID, providing advertisers with improved reach and performance metrics as well as control over their inventory. With more direct access, your budget can likely go further, and you can decrease your effective cost per mille (eCPM) and get more working media.
“Supply-side targeting is the next phase of how supply path optimization (SPO) and buyers will need to work more closely with SSPs.” – Mike Chowla, SVP, Product, OpenX
Buying on the sell-side vs. open exchange
When buying on the open exchange, you have access to a vast number of impressions. With sell-side targeting, you can apply your campaign targeting directly on the supply-side and activate those impressions through a deal ID. Sell-side targeting works across various formats including web display, mobile, in-app, and connected TV (CTV) for a seamless advertising experience.
OpenX offers the unique capability to match users using their device graph within their SSP. This means you can target users from traditional data sources such as cookies or mobile ad IDs (MAIDs) and reach them in CTV or app environments. This gives you even more reach and precision in your advertising efforts.
The role of first- and third-party data on the sell-side
Buyers are showing a keen interest in bringing their own first-party data into the process of sell-side targeting. Meanwhile, certain agencies have been actively involved in working with identity and data. OpenX is currently collaborating with several agency ID solutions such as Choreograph, Merkel, and Horizon.
Buyers are also purchasing third-party data and data segments from various providers through OpenX’s platform for sell-side targeting purposes. By utilizing this data on the supply side, buyers are able to increase the match rate against their first- and third-party data segments in all environments. This ultimately maximizes scale against these audiences and drives a more efficient CPM due to eliminating waste.
Measurement and attribution on the sell-side
In the current state of SSP advertising, there is more of an emphasis on targeting capabilities than measurement and attribution. That said, SSPs can provide granular log level reports that can be utilized for multi-touch attribution (MTA) or mixed media models (MMM). These granular insights not only inform measurement and attribution models, but they also provide valuable optimization insights such as clearing price.
Additionally, advertisers have all of the same reporting options that they’re used to getting through their DSP because their buys are activated via deal ID in the DSP of their choice.
What to consider when transitioning to sell-side targeting
There are two primary items you should consider when transitioning to sell-side targeting:
- Supply
 - Reach
 
Reach
Collaborating with partners who have the right capabilities can greatly improve reach and audience extension across different devices. For instance, if you bring your first-party audience or a third-party audience and are identifying that consumer via a cookie or MAID, being able to extend that targeting segment to other devices and platforms can be highly beneficial.
Supply
It’s crucial to collaborate with partners who have the right access to supply and direct connections with publishers. While targeting is essential, it’s equally important to have high-quality supply to drive performance.
Reaching consumers in a cookieless future
Whether you’re targeting on the demand or sell-side, it always starts with the consumer and who you’re trying to reach.
Significant changes in the consumer privacy landscape are impacting advertisers’ ability to access various signals emitted by consumers through their devices and browsers. Recent developments from Apple and Google have further amplified this situation.
Alternative IDs as a solution to signal loss
In response, we’re seeing the emergence of alternative IDs like UID2, Ramp ID, and ID5. OpenX supports these types of IDs and considers them crucial for audience buying in a privacy-centric cookie-less future.
We are still in the early stages of this evolution. While some of the IDs have good coverage, cookies will continue to be the primary targeting method as long as they remain available.
Nevertheless, we see alternative IDs as one of several solutions that will become increasingly important as third-party cookies disappear. Contextual buying will also emerge, and a set of solutions will come together to enable advertisers to keep finding their audience in a cookie-less world.
Overcoming signal loss with identity resolution
Looking ahead, as we continue to lose signals due to the evolving consumer privacy landscape, we will witness two things:
- Continued fragmentation
 - A wide variety of identifiers
 
Content will continue to be available on various devices. We’re currently experiencing the emergence of connected TV, but who knows what other devices will surface over the next five to ten years. As cookies disappear, which have been the primary identifier, and alternative IDs are introduced, the wide variety of identifiers will create further fragmentation. This highlights the need for identity in the future.
Identity resolution at Experian matches fragmented identifiers to a single profile to create a unified, cross-channel view of your consumers. Our identity resolution solutions can help future-proof your marketing strategies.
How Experian and OpenX work together
Experian is a key player in OpenX’s OpenAudience solution and helps to power many of their data segments as well as their identity graph. While OpenX collaborates with a variety of providers and operates a fully interoperable platform, Experian remains valuable to the core technology within OpenX’s SSP.
“Experian powers a lot of the data segments and identity graph that OpenX has in our OpenAudience capabilities as part of our SSP.” – Mike Chowla, SVP, Product, OpenX
Watch the full Q&A
Visit our Ask the Expert content hub to watch Mike and Chris’s full conversation on sell-side targeting. In the Q&A, Mike and Chris also share their thoughts on the impact artificial intelligence (AI) will have on the AdTech industry and their go-to sources for staying up to date on all things AdTech.
About our experts

Mike Chowla, SVP, Product, OpenX
Mike Chowla is the SVP of Product at OpenX where he leads product development and innovation, from customer discovery and user research to the development, delivery, and support of a market-leading product suite. Chowla holds a BS in Engineering from the University of Southern California, and an MBA from The University of Pennsylvania.

Chris Feo, Chief Business Officer, Experian
As SVP of Sales & Partnerships, Chris has over a decade of experience across identity, data, and programmatic. Chris joined Experian during the Tapad acquisition in November 2020. He joined Tapad with less than 10 employees and has been part of the executive team through both the Telenor and Experian acquisitions. He’s an active advisor, board member, and investor within the AdTech ecosystem. Outside of work, he’s a die-hard golfer, frequent traveler, and husband to his wife, two dogs, and two goats!
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With the 82nd Academy Awards® just around the corner and only days before final voting ballots are due back to accounting firm PricewaterhouseCoopers, Experian Simmons is taking a close look at the American movie-going population. In any given month, over 56 million adults (26% of the adult population) make a trip to the cinema to take in a film. Movie-going typically reaches its peak in mid-summer, and 2009 was no exception. Experian Simmons DataStreamSM reports that in July of last year, 32% of adults went to movies, the highest level observed at any point in the year. In October of the same year, the percentage of past-month adult cinema-goers had dropped to just 19%, the lowest point observed in all of 2009. In this month’s Consumer Insights report, Experian Simmons sizes the movie-going audience, examines their receptivity to cinema ads—including pre-show commercials and product placement within films—online movie searches as well as Americans’ penchant for tuning into the Academy Awards. All data comes from the Simmons Summer 2009 National Consumer Study. Two-thirds of the adult population have gone to the movies at least once in the last 6 months. Nearly half (46%) have been in the last 90 days and a quarter (26%) have been in the last month. Young adults are, as expected, more likely to go to the movies than older adults, but adults over 50 outnumber young adults when it comes to raw number of movie-goers as you will see in the following chart. Over 147 million individuals have gone to the movies at least once in the last 6 months. With 20.8 million adults ages 18 to 24 going to the movies in the last 6 months, this age group accounts for only 14% of the movie-going population. Adults ages 50 and over, on the other hand, account for 37% of the movie-going population with over 55 million adults in this age group going to the theater at least once in the last 6 months. Among all adults who had been to the movies at least once in the last 6 months, 68% have been at least once in the last 30 days. Many movie-goers (39%) have been only once in the last month and only 7% have been four or more times. Young adults ages 18 to 24 are much more likely than the average movie-goer to have been to the theater in the last month with 75% reporting having been at least once and 10% having been 4 times or more. Experian Simmons DataStreamSM reports similar trends in past 30 day movie-going for 2008 and 2009 with the peak for this behavior occurring in both years on almost the exact same date. During the week of July 22, 2009 32% of adults reported having been to the theater during the last 30 days and during the week of July 21, 2008, 29% reported going. Cinema Blockbusters that month in ’09 included Bruno and Harry Potter and the Half-Blood Prince. In July of ’08, Mama Mia and The Dark Knight were released. When it comes to product placement in movies, frequent cinema-goers are most likely to respond. In fact, 41% of adults who went to the movies 4 or more times in the last 90 days are classified by the Simmons Movie Product Placement segmentation system as “Emulators,” those consumers who notice, remember and are driven to buy products placed into the context of a film. By comparison, only 28% of consumers who went to a movie only once in the last 90 days are Emulators. Forty-eight percent of Horror film fans say they often pay attention to commercials that show along with movie previews in movie theaters making them the most receptive to cinema advertisements followed by Romantic Comedy fans and Family movie fans. Only 39% of Foreign Language or Independent film fans say they pay attention to such ads. Nearly a quarter of all movie-goers get movie information, reviews or show times online in any given month. Aside from the obvious movie sites, you are likely to find movie information seekers on these sites: Californians like foreign language and independent films, whereas New Englanders have more of a penchant for Comedies and Southerners are among the most likely to see Horror films. Below are the top 5 metro areas for finding adults who say they usually see the three selected movie genres when they go to the theater. One-in-seven American adults tuned into the last Academy Awards® ceremony on ABC, including many non-movie-goers. Nine percent of adults who had not been to the movies even once in the past six months tuned into the last awards show and ultimately comprised 19% of all 2009 Oscar® viewers. Still, the more frequently a consumer goes to the movies, the more likely he or she is to watch the annual Academy Awards® ceremony.

The Simmons Multi-Media Engagement Study is a unique syndicated research program that measures – across multiple dimensions – the relationship between media vehicles and their audiences. This strategic tool provides measures of the cognitive and emotional engagement consumers have with major media properties, which includes broadcast, cable, and syndicated television, major magazines, and Internet sites. The Fall 2009 release of the Simmons Multi-Media Engagement Study utilizes a patented behavioral integration model to map the engagement levels of nearly 800 media vehicle users back to the respondents in the Experian Simmons National Consumer Study, allowing the analysis of media engagement to be filtered by consumer behaviors including users of over 8,000 brands in over 460 product categories. The following slides will demonstrate some powerful examples leveraging the Spring 2009 MME study. Among all U.S. adults, Consumer Reports magazine is the most Trustworthy media vehicle. In fact, 6 of the top 10 Trustworthy media vehicles are print magazines. The other top vehicles include 3 websites and 1 cable television network. When broken down by gender, there are 4 vehicles that remain consistent across the gender breaks, although their rank orders do change. Among media properties that index at 110 or higher for new car intenders*, we can determine which are best for communicating a message of trust. Below are the top vehicles ranked by the percent of new car intenders saying “I trust this to tell the truth.” When ranking print magazines by Ad Attention/Receptivity – the dimension that measures how likely consumers are to notice and pay attention to ads as well as buy advertised products – we find that the top of the list is dominated by niche publications, whose audiences are focused and whose ads are typically targeted. In a similar vein, those magazines that focus on a mass-market audience tend to have the lowest Ad Attention/Receptivity scores. Looking at the statement, “I get valuable information from the ads in this magazine,” we can see some interesting differences between consumers by region. For instance, while American Baby is tops in 3 of the 4 census regions, it is fourth in the Midwest. Smart Money magazine makes the list only in the Northeast and House Beautiful only in the West. Likewise, Family Handyman appears in both the Midwest and South, but not in the Northeast or West. Among print magazines that index at 110 or higher for readers planning to retire in the next year, we can determine which magazines would be ideal for placing ads promoting plans and hobbies for their future free time. The following magazines rank top for future retirees who say “This magazine has ads for things I care about.” The Personal Time Out dimension helps identify vehicles that people like to relax with and to spend their free time using. While there are similarities across users of all ages, these top websites for each age group show that younger users prefer social media and entertainment-oriented sites, while more mature users lean towards lifestyle sites when they just want to kick back. Of the Facebook.com users who say, “I like to kick back and wind down with Facebook.com,” we can look at what retailers they are most likely to shop compared to other online adults. Facebook.com users who like to kick back and wind down on the site are 172% more likely to shop at Express and 130% more likely to shop at Victoria’s Secret or Banana Republic. Should these retailers advertise on Facebook, they could benefit by including messages of escape and time-out. When it comes to word of mouth, synergy is a powerful tool. While 69% of all viewers of The Oprah Winfrey Show say, “This program gives me something to talk about,” this number increases to 81% among those viewers who either read O, The Oprah Magazine or visit Oprah.com. Incredibly, when looking at Oprah viewers who visit her website and also read her magazine, fully 96% say The Oprah Winfrey Show gives them something to talk about, an increase of 39% over all program viewers.