
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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The political winds in the United States shifted sharply to the right earlier this month with Republicans making gains across the board. While political party affiliation was a strong indication of a candidate's success in the election, we wondered: Can the political leaning of a TV show's audience determine the success of the program? The answer is yes. Experian Simmons examined the political party registrations of viewers of over 700 television programs measured in the Spring 2010 Simmons National Consumer study. We found that registered Republicans and Democrats, indeed, have different preferences in entertainment programs. But especially noticeable was the preponderance of highly rated Nielsen programs at the top of the Republican list. Not all shows that skew Republican are ratings darlings, of course, but programmers should take note of this fact if ratings are their foremost goal. Republicans: When looking at programs on broadcast TV, we see that Republicans tend to gravitate towards reality shows that center on some sort of competition. In fact, Republicans are 32% more likely to watch The Amazing Race on CBS than the average American adult. They're also 24% more likely to watch American Idol on Fox and 18% more likely to watch America's Got Talent on NBC. The Simmons data provides some evidence that it's the competitive angle of these shows that is attracting Republicans. Specifically, Republicans are fully 29% more likely than the average adult to watch the results show of Dancing with the Stars on ABC and just 17% more likely to watch the non-results episodes of the same show. Republicans tend to gravitate towards reality shows that center on some sort of competition. When it comes to cable entertainment programs, Republicans tend to prefer lifestyle programs on HGTV and TLC. Republicans are also found in high concentrations among many adventure/documentary show audiences, like Ice Road Truckers on History and Deadliest Catch on Discovery. And finally, big families are big draws for Republicans with 18 Kids and Counting and Jon & Kate Plus 8, both on TLC, attracting more than average concentrations of Republican viewers. Top indexing Republican NETWORK programs (non-news, non-music) Republican Index Top indexing Republican CABLE programs (non-news, non-music) Republican Index THE AMAZING RACE (CBS) 132 PROPERTY VIRGINS (HGTV) 125 DANCING WITH THE STARS RESULTS SHOW(ABC) 129 MODERN MARVELS (HISTORY) 121 MODERN FAMILY (ABC) 124 COLOR SPLASH (HGTV) 120 AMERICAN IDOL (FOX) 122 UNSELLABLES (HGTV) 120 V (ABC) 122 LEVERAGE (TNT) 118 THE BIG BANG THEORY (CBS) 119 18 KIDS AND COUNTING (TLC) 116 THE GOOD WIFE (CBS) 119 DEAR GENEVIEVE (HGTV) 116 THE MENTALIST (CBS) 119 WHAT NOT TO WEAR (TLC) 116 AMERICA'S GOT TALENT (NBC) 118 DINERS, DRIVE-INS & DIVES (FOOD NETWORK) 115 SURVIVOR (CBS) 118 HOUSE HUNTERS (HGTV) 115 DANCING WITH THE STARS (ABC) 117 INCOME PROPERTY (HGTV) 114 DESPERATE HOUSEWIVES (ABC) 116 OPERATION REPO (TRU TV) 114 NCIS (CBS) 115 WHITE COLLAR (USA) 114 HUMAN TARGET (FOX) 114 ICE ROAD TRUCKERS (HISTORY) 112 LIE TO ME (FOX) 114 PAWN STARS (HISTORY) 112 THE BACHELOR (ABC) 114 SAY YES TO THE DRESS (TLC) 111 ANTIQUES ROADSHOW (PBS) 113 DIRTY JOBS (DISCOVERY) 110 CASTLE (ABC) 113 MYTHBUSTERS (DISCOVERY) 109 HOW I MET YOUR MOTHER (CBS) 113 JON & KATE PLUS 8 (TLC) 106 THE BACHELORETTE (ABC) 113 AMERICAN LOGGERS (DISCOVERY) 105 EXTREME MAKEOVER: HOME EDITION (ABC) 112 IN PLAIN SIGHT (USA) 104 NCIS: LOS ANGELES (CBS) 112 THROWDOWN WITH BOBBY FLAY (FOOD NETWORK) 104 TWO AND A HALF MEN (CBS) 112 DEADLIEST CATCH (DISCOVERY) 103 FRIDAY NIGHT LIGHTS (NBC) 111 MAN VS. WILD (DISCOVERY) 103 CELEBRITY APPRENTICE (NBC) 109 THE SMOKING GUN PRESENTS:WORLD'S DUMBEST (TRU TV) 103 Democrats: On the left side of the broadcast dial, we see that registered Democrats tend to be drawn to crime and legal dramas like Law & Order and Law & Order: SVU, both on NBC. We also see higher concentrations of Democrats tuning into broadcast shows featuring female characters playing central or leading roles, such as Brothers & Sisters on ABC, Medium on CBS, 30 Rock on NBC and the Good Wife on CBS. The Good Wife, actually, has higher than average concentrations of both registered Democrats and registered Republicans. Given that the program is about the wife of a politician, it's not such a surprise that registered voters from both sides of the aisle tune in. We also see higher concentrations of Democrats tuning into broadcast shows featuring female characters playing central or leading roles. On cable, we see high concentrations of registered Democrats tuning into character-driven dramas, like Dexter and United States of Tara, both on Showtime. Democrats also flock in disproportionate numbers to cable reality shows. But unlike the competitive reality shows favored by Republicans, Democrats prefer observational reality shows where they get to peer into the lives of celebrities or unique and extraordinary people. Top indexing Democrat NETWORK programs (non-news, non-music) Democrat Index Top indexing Democrat CABLE programs (non-news, non-music) Democrat Index FLASHPOINT (CBS) 145 TYLER PERRY'S MEET THE BROWNS (TBS) 189 HOMETIME (PBS) 143 HOUSE OF PAYNE (TBS) 181 90210 (CW) 140 REAL TIME WITH BILL MAHER (HBO) 165 WIFE SWAP (ABC) 136 SNAPPED (OXYGEN) 162 AMERICA'S NEXT TOP MODEL (CW) 135 SHERRI (LIFETIME) 153 NOVA (PBS) 133 HAWTHORNE (TNT) 153 LAW & ORDER (NBC) 132 LIVE FROM THE RED CARPET (E!) 149 SMALLVILLE (CW) 131 DEXTER (SHOWTIME) 147 WHO DO YOU THINK YOU ARE? (NBC) 130 UGLY AMERICANS (COMEDY CENTRAL) 147 BROTHERS & SISTERS (ABC) 127 KOURTNEY & KHLOE TAKE MIAMI (E!) 146 PRIVATE PRACTICE (ABC) 127 TODDLERS & TIARAS (TLC) 145 MEDIUM (CBS) 126 UNITED STATES OF TARA (SHOWTIME) 144 TRUE BEAUTY (ABC) 126 MEET THE NATIVES (TRAVEL CHANNEL) 144 AMERICA'S MOST WANTED (FOX) 126 BRIDEZILLAS (WE TV) 143 30 ROCK (NBC) 126 TOP CHEF MASTERS (BRAVO) 142 VICTORY GARDEN (PBS) 126 WOMEN BEHIND BARS (WE TV) 142 THE GOOD WIFE (CBS) 124 THE BOONDOCKS: ADULT SWIM(CARTOON NETWRK) 142 ONE TREE HILL (CW) 124 TABATHA'S SALON TAKEOVER (BRAVO) 140 NEW YANKEE WORKSHOP (PBS) 122 DOWN HOME WITH THE NEELYS (FOOD NETWORK) 140 LAW & ORDER: SVU (NBC) 122 BAD GIRLS CLUB (OXYGEN) 138 MASTERPIECE (PBS) 122 SCARE TACTICS (SYFY) 136 COMMUNITY (NBC) 122 MILLION DOLLAR LISTING (BRAVO) 135 BIG BROTHER (CBS) 121 MODELS OF THE RUNWAY (LIFETIME) 135 GOSSIP GIRL (CW) 120 TORI & DEAN: HOME SWEET HOLLYWOOD (OXYGEN) 133 FRIDAY NIGHT LIGHTS (NBC) 119 DESTINATION TRUTH (SYFY) 132 For more information about the in-depth consumer behaviors, attitudes, lifestyles, brands and media measured in the Simmons National Consumer Study, visit our website.

Frugal living seems to have become a more common trademark of the American consumer in the last couple of years. Since the beginning of 2008, 20% less and 35% less US adults report to have purchased merchandise at the upscale stores Macy’s and Bloomingdale’s respectively. By contrast, 8% more and 62% more US adults report to have purchased merchandise at Marshall’s and Ross Stores, respectively. Discount stores appear to be weathering the recession better than some of their full-price counterparts, as they carry first-quality designer merchandise at competitive prices, often advertised at up to 70% below department store prices. However, many of these designer discount retailers would be in a difficult position without the existence of department stores, since the designer discount business model is primarily based on purchasing close-outs from the very department stores that they compete against. Discount stores appear to be weathering the recession better than some of their full-price counterparts Since the beginning of 2008, an average 54% of US adults shop around a lot to take advantage of specials and bargains. Also, from January 2008 to August 2009, 7% more US adults tend to hold out on buying things until the go on sale and 13% more head right for the clearance rack when they enter a store. In conclusion, the past 2.5 years have seen the American consumer become a more serious discount shopper – a trend that is likely to continue in this current, uncertain economic environment.