Oct 6, 2026 · 56 min · 11 segments
Let's first highlight some "not so fun facts" about the topic covered in this episode, according to Anne Coghlan, COO of Scope3 in Digiday…
Brian O'KelleyGuest
Hélène ParkerHost
Ellen ParkerHost
Carlos VillanuevaHost
So, uh, that's, that's quite interesting because actually, like, that, uh, supply chain curves that you were doing, I guess it translates to what later or right now we talk about, like, SPO on the programmatic, uh, ecosystem and what we try to achieve, uh, when creating, like, a more greener ecosystem.

And before we dive in into that, I don't know if anyone has any questions, uh, any comments.

Uh, for anyone, like, listening that is wondering, like, we have so many acronyms in programmatic, so what is SPO? So, uh, supply path optimization.

I- it's basically, uh, what the process that it has been trying to be imposed, uh, for the publisher side and also the demand side so we can start selling or buying programmatic ads in a more direct way.

Yeah, so you may have heard my secret superpower name, which is B-O-K, or Bok.

Um, but the reason my blog exists, Bok on Ads, is because at AppNexus, as I was mentioning, I kept finding all these problems with programmatic, and one of the problems was, A, like, these really long supply chains are super inefficient.

And so I had this idea that buyers-- So it used to be that DSPs would brag about how many QPS they had.

Like, "We see 500 million a day," or, "We see five billion a day." And everyone would just brag about how much volume they could handle.

But it's also crazy because what happened was people would just send the same ad as many times as they could.

So you'd run it through every single SSP, and they would sell it to each other, and it would just get bounced back and forth until, yeah, you have tons of QPS, but no brand-new impressions.

And because AppNexus was both a buyer and a seller, we probably would choose our own path for various reasons, partially because if I looked at all the paths and ours wasn't the best, I would just go make it the best.

And so even if we were completely neutral, like, we had this set of information to know when we were not competitive.

So, uh, that's, that's quite interesting because actually, like, that, uh, supply chain curves that you were doing, I guess it translates to what later or right now we talk about, like, SPO on the programmatic, uh, ecosystem and what we try to achieve, uh, when creating, like, a more greener ecosystem.

And before we dive in into that, I don't know if anyone has any questions, uh, any comments.

Uh, for anyone, like, listening that is wondering, like, we have so many acronyms in programmatic, so what is SPO? So, uh, supply path optimization.

I- it's basically, uh, what the process that it has been trying to be imposed, uh, for the publisher side and also the demand side so we can start selling or buying programmatic ads in a more direct way.

Yeah, so you may have heard my secret superpower name, which is B-O-K, or Bok.

Um, but the reason my blog exists, Bok on Ads, is because at AppNexus, as I was mentioning, I kept finding all these problems with programmatic, and one of the problems was, A, like, these really long supply chains are super inefficient.

And so I had this idea that buyers-- So it used to be that DSPs would brag about how many QPS they had.

Like, "We see 500 million a day," or, "We see five billion a day." And everyone would just brag about how much volume they could handle.

But it's also crazy because what happened was people would just send the same ad as many times as they could.

So you'd run it through every single SSP, and they would sell it to each other, and it would just get bounced back and forth until, yeah, you have tons of QPS, but no brand-new impressions.

And because AppNexus was both a buyer and a seller, we probably would choose our own path for various reasons, partially because if I looked at all the paths and ours wasn't the best, I would just go make it the best.

And so even if we were completely neutral, like, we had this set of information to know when we were not competitive.
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