Zeta Stock Is Sitting on a 90% Upside — But There’s a Catch Nobody Wants to Talk About

When a short seller enters the picture, a company experiences a certain type of tension. It’s more akin to the air pressure drop and quiet that occurs just before a storm than it is to panic. In the spring of 2026, Zeta Global Holdings, a company that had spent nearly two decades quietly developing into one of the most ambitious data and marketing platforms in the world, came under intense public scrutiny.

The company’s story begins in a conversation between two unlikely partners, which is where many ambitious endeavors start. In 2007, serial entrepreneur David Steinberg, who had a penchant for acquisition-driven expansion, joined forces with John Sculley, the former CEO of Apple, to establish what they first called XL Marketing.

You should be able to infer something about the aspirations ingrained in this from the very beginning from that pairing alone. It became Zeta Interactive in 2014. Zeta Global by 2016. A “billion-dollar startup,” according to Forbes, that was partially funded by Blackstone’s GSO Capital Partners, it subtly entered unicorn territory at some point.

Steinberg created a vast marketing intelligence machine, piece by piece and deal by deal. In just nine years, the company bought nine businesses, including customer relationship platforms, ad tech companies, and machine learning startups, as quickly as it could integrate them. Boomtrain. Temnos. Sizmek was purchased out of bankruptcy for about $36 million. Disqus

With each acquisition, Zeta’s “Marketing Platform,” which currently rests on a database of over 750 million customer profiles, gained an additional layer. You are stopped in your tracks by that number alone. 750 million people are tracked, mapped, and made useful to the service provider.

In June 2021, the company went public on the New York Stock Exchange under the ticker ZETA. It entered the market with a $1.7 billion valuation and the kind of momentum that draws investors who are patient and growth-oriented. By early 2020, the company’s revenues had already surpassed $400 million, and it declared profitability, a claim that now carries more weight in the volatile world of adtech and marketing software.

Internal estimates predict $1.9 billion in revenue and positive earnings of over $100 million by 2028. For a business of Zeta’s size, that would mean an annual growth rate of about 18%, which is ambitious but not obviously unachievable.

Culper Research then published its report at the beginning of April 2026. Culper, a short-selling company known for asking in-depth, awkward questions, claimed that Zeta used round-trip revenue arrangements to inflate its reported numbers and relied on consentless data, which is consumer information obtained without express consent.

Zeta’s stock dropped 6.9 percent in a single session, putting it in uncomfortable company with HubSpot and Asana, which also saw comparable declines that day due to broader market concerns about a breach in the Middle East ceasefire and the emergence of autonomous AI agents. It’s important to remember that the surrounding environment was already precarious. Zeta’s drop, however, felt different. It had a distinct feeling.

The fact that the Culper accusations target the very product Zeta has been selling makes them both genuinely intriguing and potentially hazardous for the stock. Athena by Zeta, the company’s newest flagship product, is marketed as a “superintelligent” marketing agent that makes predictions based on consumer data. The cleanliness, consent, and reliability of the underlying data are crucial to the pitch.

The entire investment thesis becomes much more complex if regulators or consumers start posing pointed questions about the source of that data. Whether the Culper accusations will result in civil liability, regulatory action, or just a challenging earnings call is still up in the air. However, they won’t go away quietly.

It’s difficult to ignore Zeta’s peculiar position as you watch this play out. The business is genuinely big, genuinely profitable in some ways, and genuinely well-positioned in a marketing technology industry that is still expanding. Email, programmatic advertising, identity resolution, and now AI-driven decision-making are all part of its platform. That breadth is genuine.

In addition, the business has GAAP losses, which means that formal accounting is still losing money regardless of the profitability it claims on adjusted terms. Today’s ZETA owners are placing a wager not only on execution but also on the narrative’s coherence—that is, on the data being accurate and the revenue being as natural as management suggests.

According to some analysts, the stock is worth about $29, which is about 90% more than where it has been trading. An investor would lean forward in their chair at that kind of figure. The market may have oversold a fundamentally sound company because it was alarmed by the short report and preoccupied with macroeconomic noise.

The Culper report might also reveal something that completely alters the calculus. To be honest, no one knows yet. What kind of investment ZETA ends up being will probably depend on how the company responds to those accusations, including how forthcoming it chooses to be and how quickly it addresses the underlying data questions.

For the time being, Zeta Global is still what it has always been: a business that moves quickly, makes aggressive acquisitions, and works in an environment where data regulations are still being drafted. Although John Sculley is no longer involved in day-to-day operations, the spirit of bold, ambitious institution-building endures. Steinberg is still in the lead. Eleven countries are still represented in the offices.

There are still hundreds of millions of profiles in the database. One quarter at a time, the story is still being written, regardless of whether that empire expands or encounters the limits that regulators are gradually drawing.