Christopher Greiner
Analyst · Needham & Company. Please proceed
Thank you, David. I'm excited for all that we're covering today, but let me start with the punch line. First, we're taking share while growing efficiently. I'll cover what is contributing to another quarter and year of exceeding guidance, being above the rule of 40, and growing faster than the market. Second, we're leveraging our flywheel. I'll share the financial profile and the flywheel effect of our direct and integrated revenue streams and how we're expanding and cross-selling our new large agency customers to Zeta-owned channels. And third, we're guiding ahead of the street, while remaining prudently conservative. I'll wrap up by outlining how 2023's headwinds shift to become 2024 tailwinds. Altogether, we're executing on our plan, capitalizing on our competitive advantages, and guiding 2024 from a position of strength. Now, let's dive into each of these with more color. Starting with the fourth quarter and full year 2023 results. In 4Q, we delivered revenue of $210 million, up 20% year-to-year, or 22%, excluding M&A and the prior year's political revenue. The full year's revenue was $729 million, up 23% year-to-year, or 24%, excluding M&A and the prior year's political revenue. This exceeded our initial 2023 guide of $691 million by $38 million, or 5.5%, and also includes a seven-point growth headwind from our two challenged verticals of automotive and insurance. Combined, these two verticals accounted for approximately 10% of revenue in 2023, meaning 90% of Zeta grew over 30% in 2023. Our ability to consistently exceed guidance and drive 20% plus revenue growth over the past four years comes from strong visibility into our Zeta 2025 KPIs. Let's dive into those now. We ended the year with 452 scaled customers, who, as a reminder, account for 97% of total Zeta revenue and spend at least $100,000 on a trailing 12-month basis. This was up 12% from 3Q and 49, or 12% from a year ago at the high end of our 8% to 12% model. We saw accelerated growth in our 1 million plus superscaled customers, which increased by 7% quarter-to-quarter to 131 and up 27% year-to-year. The addition of scaled customers are coming from an array of industries, most notably consumer retail, education, tech and media, and travel and hospitality in addition to others, demonstrating the wide application of our platform and continued healthy diversification of customers. To that end, six of our 10 largest verticals once again grew more than 25% year-to-year. In terms of scaled customer ARPU, 4Q grew 7%, with the full year up 10% to $1.57 million, coming in at the midpoint of our 8% to 12% growth model. This was driven by customers using two or more channels, which increased 27% year-to-year. Our scaled customer cohort trend slide on number 12 in the supplemental deck shows how ARPU reliably increases the longer our customers are on the platform and really illustrates the drivers of high net revenue retention. For example, scaled customers less than a year on the platform spend an average of $600,000 with many starting at smaller pilots. This group accounted for less than 10% of 2023 revenue. Scaled customers with one to three years on the platform spend an average of $1.3 million, or 2.3 times more than those with less than a year on the platform. And scaled customers with three or more years tenure spend an average of $2.1 million, or 3.6 times more than those with less than a year on the platform. The progression of these cohorts is important for a couple of reasons. Of the 49 scaled customers added in the last 12 months, 27 are in the 100K to 600K band, meaning this cohort has the potential to more than double in the next 12 months. And with 90% of Zeta's revenue generated from customers with us more than a year, we have strong forecasting visibility. This is a good lead-in to net revenue retention, which is 111% for the year, excluding the impact of the automotive and insurance industry, net revenue retention would have finished the year at 118%. Our model net revenue retention is 110% to 115%. And as we sit here today, I would expect us to be towards the high end of that range in 2024. Switching to another one of our Zeta 2025 KPIs, direct revenue mix, which is an area you want to help investors understand. Definitionally, direct platform revenue is generated when customers use Zeta's data, analytics, and owned channels to perform their marketing activities on the ZMP, whereas integrated revenue is generated from non-Zeta-owned channels, principally social networks like Meta, TikTok, and others. In terms of the financial attributes of direct revenue, direct mix is consistently greater than 70% of total Zeta, as a 70% to 75% margin profile, with approximately two-thirds of direct revenue being recurring. From a growth perspective, direct revenue grew 15% year-to-year, or 23%, excluding the two challenged industries of automotive and insurance. If we simply assume the percentage of 2024 direct revenue is consistent with 2023, which I see as a balanced assumption, you have a $600 million direct business growing approximately 20% with margins and recurring revenue mix about 10 points above the corporate average. Where the flywheel comes into play is the customer journey from social to Zeta-owned channels. This is most relevant with our new large agency customers, as illustrated on Slide 13 in our supplemental deck. Agencies utilize Zeta's data cloud and intelligence products to identify individuals who are in-market and reachable inside the walled garden. This powerful proof point of Zeta's intelligence and seamless connection points into the walled gardens forms the foundation for building omni-channel journeys on Zeta's owned channels. This is a new and compelling way to think about the profile of the direct business, along with the long-term value large agency HoldCos bring to Zeta. This dynamic of direct and integrated revenue mix was the primary driver of changes in GAAP cost of revenue throughout 2023. Cost of revenue in the quarter was 40.2%, up 260 basis points year-to-year, and 130 basis points quarter-to-quarter, driven primarily by the growth in integrated revenue from newly added agency customers starting their journey on social channels. Our fourth quarter GAAP net loss was $35 million, which includes $63 million of stock-based compensation. Full-year 2023 GAAP net loss was $187 million, which includes $243 million of stock-based compensation. Excluding the accelerated expensing related to our IPO, stock-based compensation would have been $102 million. 4Q total operating expense, growth slowed to 3% year-to-year, excluding stock-based compensation, and is down 640 basis points as a percentage of revenue. This same leverage was visible over the full year, down 410 basis points as a percentage of revenue. Our disciplined expense management and better sales productivity resulted in continued adjusted EBITDA margin expansion. In the quarter, we generated $44.8 million in adjusted EBITDA, up 38% year-to-year, with 280 basis points of margin expansion to 21.3%. On a run rate basis, we're two years ahead of the 20% implied margin target as part of Zeta 2025. And 4Q was the 12th straight quarter, we've expanded adjusted EBITDA margins year-to-year. Full-year 2023, we delivered adjusted EBITDA of $129.4 million, up 40% year-to-year, with adjusted EBITDA margins of 17.8%, up 220 basis points year-to-year. Cash flow from 4Q operating activities was $27 million, up 17% year-to-year, with free cash flow of $18 million, up 32% year-to-year. For the full year, cash flow from operating activities was $91 million, up 15% year-to-year, with free cash flow of $55 million, up 39% year-to-year. This, despite a $25 million working capital headwind, primarily from the expansion of our agency business. Now I'll wrap with guidance. First, a handful of points to communicate our approach to guidance and slides you can reference in our supplemental deck. One, even by starting ahead of the Street, we see our full year guide in revenue and adjusted EBITDA as prudently conservative, which is outlined on Slide 17 in the supplemental. Two, like last year, we're providing guidance for each quarter of the year on Slide 18, which is based upon the skew of 2022 to take into consideration political cyclicality. Three, along those lines, as seen on Slide 19, we're showing how much of each quarter's revenues associated with political candidates. We see this as simply a starting point. Four, we're guiding to the full year 2024 free cash flow, showing an increase in cash conversion as we wrap on working capital headwinds from newly added agency HoldCo customers. And five, as David mentioned, we're targeting a decrease in dilution from incentive-based stock compensation at 5% to 3.5% to 3.75% enroute to GAAP profitability by the fourth quarter of 2024. As for the details, we're guiding the midpoint of full year 2024 revenue to $875 million, up 20% year-to-year and the first quarter revenue at $187 million, up 19% year-to-year at the midpoint of our range. We have a starting placeholder of political candidate revenue in 2024 of $15 million, with $2 million in 2Q, $5 million in 3Q, and $8 million in 4Q. We're guiding adjusted EBITDA at the midpoint of full-year guidance of $166 million, or 19% margin, with first quarter adjusted EBITDA of $29.1 million, representing a margin of 15.5% at the midpoint of our range. We're guiding full year free cash flow in the range of $75 million to $85 million, translating to 48% conversion of adjusted EBITDA at the midpoint, up from 42% in 2023. In summary, we see our 2024 guidance, which already exceeds the Street's growth rate by 300 basis points, and adjusted EBITDA by $8 million, as a good starting point, with high visibility to tailwinds that layer throughout the year. With that, let me hand the call back to the operator for David and me to take your questions. Operator?