Opened a new position in Zeta Global — ticker ZETA — in the Trading 212 Stocks & Shares ISA today. This is the ISA, not the SIPP — I want this one in the more accessible account. Zeta is an AI-powered marketing cloud platform, and before you roll your eyes at another company slapping 'AI' on its investor deck, let me explain why this one is genuinely interesting.
── What Does Zeta Actually Do? ──
Zeta Global provides a marketing technology platform that uses artificial intelligence and a massive proprietary dataset to help large companies — think Fortune 500 enterprises — target, acquire, and retain customers more effectively. The core product is the Zeta Marketing Platform (ZMP), which combines customer data unification, predictive analytics, campaign orchestration, and personalisation into a single cloud-based system.
In plain English: Zeta helps big companies figure out who their customers are, what they're likely to buy next, and how to reach them with the right message at the right time across email, display ads, social media, and connected TV. The AI isn't a bolt-on feature or a ChatGPT integration — it's the engine that's been powering the platform since well before 'generative AI' entered the popular lexicon. Zeta has been building its data moat — over 2.4 billion consumer identities, trillions of behavioural signals — for over a decade.
── Why This Caught My Eye ──
A few things stood out. First: Zeta is growing. Revenue grew over 30% year-over-year in recent quarters, and they're guiding for continued strong growth. In a marketing technology sector that's crowded with slow-growing incumbents and overhyped startups, that kind of growth from a company with real enterprise customers suggests genuine product-market fit rather than speculative vapourware.
Second: the business model is sticky. Once a large enterprise integrates Zeta's platform into its marketing operations — connecting customer databases, building predictive models, setting up automated campaigns — the switching costs are substantial. Ripping out the marketing infrastructure and replacing it with a competitor is painful, expensive, and disruptive to revenue. That's the kind of moat software investors dream about.
Third: the data asset is genuinely hard to replicate. Zeta's dataset of 2.4 billion consumer identities with trillions of behavioural signals isn't something a startup can build in a garage over a weekend. It's been accumulated over years of working with enterprise customers and processing real marketing data at scale. In an era where AI models are increasingly commoditised (everyone has access to the same foundation models), proprietary data is the real competitive advantage. Zeta has it.
── Why the ISA? ──
I'm putting ZETA in the ISA rather than the SIPP for a simple reason: flexibility. The ISA is the accessible pot — I can draw on it anytime if I need to, though I don't plan to. The SIPP gets the long-duration, high-conviction positions that I'm confident I won't need to touch for a decade or more. Zeta, as a growth-stage company in a competitive sector, might benefit from the ability to take profits if the thesis plays out faster than expected. The ISA wrapper gives me options the SIPP doesn't.
── The Risks ──
Zeta is not a mature, predictable business. It's growing fast but still not consistently profitable on a GAAP basis. The marketing technology sector is fiercely competitive — Salesforce, Adobe, Oracle, and a dozen smaller players all compete for the same enterprise marketing budgets. AI commoditisation is a real risk — if every marketing platform can plug into the same foundation models, Zeta's AI advantage could narrow over time. And as a mid-cap growth stock, ZETA carries valuation risk — if growth slows, the multiple compression can be brutal.
There's also concentration risk: a significant portion of Zeta's revenue comes from agency partners and political advertising (they work with campaigns on voter targeting). Political ad spend is highly cyclical — bumper in election years, much quieter in between. And relying on a handful of large agency relationships means losing one could sting. I'm comfortable with these risks at the position size I've allocated, but they're real and worth naming.
── The Bottom Line ──
Zeta is a genuine AI company — not an AI tourist — in a large and growing market, with sticky enterprise relationships and a proprietary data asset that competitors can't easily replicate. It's growing, margins are improving, and the valuation, while not cheap, doesn't feel stretched for the growth rate. It's a growth-stage position in the ISA — sized sensibly, held with conviction, and watched more closely than the sleepy index funds that do the heavy lifting.
As always: this is what I did with my own money. Not a recommendation. All investing carries risk — you can lose money, and past performance doesn't predict future returns. Zeta Global (ZETA) carries specific risks including lack of consistent GAAP profitability, competition in marketing technology, AI commoditisation, customer concentration, and political advertising cyclicality. US-listed shares carry currency risk for UK investors. Do your own research.

