On the desk today · Lamar Advertising
You can't build a new billboard next to an existing one. The permit doesn't exist. Lamar owns 159,000 of the ones that do.
| NASDAQ · LAMR |
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The Sign Nobody
Can Build Next To
In 1902, a company was founded to sell advertising space on wooden boards along the roads of the American South. Cars were a novelty. Highways didn’t exist. But people traveled — by horse, by wagon, by the first sputtering automobiles — and someone realized that a sign by the side of the road was the simplest way to put a message in front of their eyes.
One hundred and twenty-four years later, that company — Lamar Advertising — owns 159,354 billboard displays across the United States and Canada. It is the largest outdoor advertising company in North America. And the business model is almost unchanged: own the sign, sell the space, collect the rent.
I drove past a Lamar billboard last week on the highway. Giant green sign, lit up, advertising a personal injury lawyer. I’ve driven past that billboard a hundred times. I’ve never thought about who owns it. But someone does. And that someone collects a monthly payment from the advertiser — typically $1,500 to $30,000 per month depending on the location and the traffic count — for the right to put a message on that specific pole, at that specific spot, facing that specific lane of traffic.
Here is the part most people don’t know. You cannot build a new billboard next to that one. Federal law — the Highway Beautification Act of 1965 — and state and local zoning regulations have severely restricted the construction of new outdoor advertising structures across the country. In most jurisdictions, new billboard permits are simply not issued. The signs that exist are the signs that will exist. Every billboard is, in effect, a geographic monopoly — a physical location that no competitor can replicate.
In 1973, Kevin Reilly Sr. acquired Lamar and moved its headquarters to Baton Rouge, Louisiana. His son, Sean Reilly, is the CEO today. The Reilly family has run the company for 53 years — through the analog era, through the digital conversion, and through the 2014 REIT conversion that turned Lamar into one of the highest-yielding real estate investment trusts in America.
In fiscal 2025, Lamar reported $2.27 billion in net revenue — up 2.7% from the year before. Net income was $593 million. Adjusted EBITDA was $1.06 billion at a 46.7% margin — the highest among publicly traded billboard companies. AFFO reached $847 million, or $8.26 per diluted share, up 3.4%. Sean Reilly said it plainly in the Q1 2025 results: “We delivered our 16th consecutive quarter of acquisition-adjusted revenue growth.”
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That 46.7% EBITDA margin tells you what happens when your asset can’t be replicated. A billboard is a steel pole, a panel, and a light. Maintenance costs are minimal. There is no hotel staff, no cleaning crew, no lobby. The sign sits there. The advertiser pays monthly. The lease renews. And because zoning laws prevent new signs from being built, Lamar faces no incremental supply pressure. The billboard that was erected 30 years ago on a highway on-ramp generates more revenue today than the day it was installed — because the traffic count has grown and no new sign has appeared beside it.
The digital conversion is where the economics accelerate. Lamar has been converting its highest-traffic static billboards to digital displays — LED screens that rotate between eight advertisers every eight seconds instead of showing one for a month. Digital displays make up only 3.5% of Lamar’s total inventory. But they generate approximately 33% of billboard advertising revenue. One pole. Eight advertisers. Several times the revenue of a single static sign on the same location. And the conversion cost is paid back within a few years, after which the incremental revenue drops almost entirely to profit.
The stickiness is local. Approximately 79% of Lamar’s net billboard revenue comes from local advertisers — the car dealership, the personal injury lawyer, the restaurant, the urgent care clinic. These advertisers don’t have media buyers or national campaigns. They walk into Lamar’s local office and buy the sign on the highway near their business. The relationship is direct, personal, and habitual. Many have been advertising on the same billboard for years.
The flywheel runs on bolt-on acquisitions. Lamar has deployed more than $3.2 billion in acquisitions since its 2014 REIT conversion — buying small local billboard operators, integrating their inventory, and applying digital conversion to the highest-traffic signs. In 2025, the company completed the first-ever UPREIT transaction in the billboard industry — a tax-efficient structure that lets private billboard owners exchange their assets for Lamar partnership units without triggering capital gains. That structure opens a new pipeline of acquisition targets who previously couldn’t sell without a massive tax bill. The Reilly family has been running this playbook for five decades: buy the signs, operate them well, convert the best ones to digital, and let the zoning laws protect the rest.
WHY THIS WORKS
Zoning laws create a permanent monopoly. New billboard permits are not issued in most jurisdictions. The signs that exist are the signs that will exist. Every billboard is a geographic monopoly that no competitor can replicate.
3.5% of inventory generates 33% of revenue. Digital billboards rotate eight advertisers on one pole. The conversion multiplies revenue per location without adding a single new structure. The highest-traffic signs become the highest-margin assets.
46.7% EBITDA margin on a steel pole. No staff. No amenities. No renovation cycle. The billboard sits there, the advertiser pays, and nearly half of every dollar drops to operating profit.
The Reilly family has run the company for 53 years. Kevin Reilly acquired Lamar in 1973. His son Sean is CEO today. The time horizon is generational. The dividend has grown at a 9% annual rate since the REIT conversion.
In 1965, President Lyndon Johnson signed the Highway Beautification Act — a law his wife Lady Bird had championed to limit the spread of billboards along America’s highways. The law restricted new permits. States and cities followed with their own zoning bans. The billboard industry was supposed to shrink. Instead, something else happened. The signs that already existed became more valuable — because no new ones could be built beside them. Lamar Advertising, founded in 1902, owned thousands of those signs. It kept buying more. It converted the best ones to digital. And for the last 124 years — through two world wars, the Great Depression, the rise of television, the rise of the internet, and every economic cycle in between — the billboard on the side of the highway has kept doing the same thing: catching your eye, delivering a message, and collecting rent from the advertiser who put it there.
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