Stagwell Inc (STGW) stock intrinsic value fair value estimate & owner earnings analysis

Stagwell is a global network of marketing agencies and marketing-software businesses spanning creative, media buying, digital transformation, research and public affairs, formed when Stagwell Marketing Group combined with MDC Partners in August 2021. Revenue was about $2.9 billion in 2025 and rose roughly 10% in the first half of 2026. Clients are spread widely, but demand depends on advertising and marketing budgets, which fall sharply in recessions, and on the U.S. political calendar, which lifts even years and leaves odd years softer. Earnings power. We measure the cash the business produces for its owners after stock-based pay and the capital needed to stay in business, stripping out the large swings in client billings and media payables that make reported operating cash flow lurch from year to year. Since the 2021 combination, the business before interest has produced about $287 million (2022), $161 million (2023), $213 million (2024) and $175 million (2025). We use the median of 2022 to 2025, about $194 million a year, and treat 2021 as a partial year that does not describe the current business. The 2025 figure fell 18% mainly because spending on capitalized software and equipment roughly doubled to $111 million as the company built AI and automation tools; that spending continued in the first half of 2026, so we start the base case at $172 million and only then return to about $185 million, still below the four-year median. Amortization of acquired client relationships ($145 million in 2025) is a non-cash charge and is added back, but because those relationships wear out, we let earning power fade slowly in the later years of every case rather than holding it level forever. Stock-based pay of about $54 million a year is treated as a real cost. What it owes. At June 30, 2026 the company carried about $1.45 billion of borrowings, chiefly $1.1 billion of 5.625% notes due August 15, 2029 and a $750 million revolving credit line that now runs to April 2030 but falls due 91 days before the notes if they are not refinanced. On top of that we count about $40 million of deferred payments for past acquisitions, about $42 million of outside owners' stakes in subsidiaries, and about $180 million as the present value of the $252 million tax receivable agreement created when the founder's holding exchanged its units for Class A shares in April 2025, less about $50 million of cash beyond what the agencies need to operate. Total owed: about $1.66 billion. Base case. Cash generation before interest of about $172 million next year, then about $185 million a year through year ten, with no credit for acquisitions, AI-driven margin gains or share gains, because none of that is secured. After year ten, earnings fade about 3% a year for twenty years as acquired client relationships wear out and are only partly replaced, then stop. The business is worth about $2.27 billion against $1.66 billion owed, leaving about $612 million, or $2.49 per share. Bear case. An advertising recession of the 2008 to 2009 kind, when agency revenues fell roughly 10% to 15% and margins compressed, arrives early: business cash flow falls from about $165 million to $115 million and then $95 million, roughly equal to the annual interest bill, before recovering to about $145 million and fading thereafter. The 2029 notes and the revolver must be refinanced in or soon after that downturn, which we charge at about three percentage points of extra interest on $1.1 billion for seven years. The business is worth about $1.40 billion against about $1.82 billion owed including the costlier refinancing, so the company would owe roughly $410 million more than it is worth, about negative $1.68 per share. In practice that means shareholders would likely be wiped out or heavily diluted. Bull case. The current capital-spending surge proves to be temporary and the larger, more automated network runs at about $225 million a year, growing about 1% a year from small, self-funded additions, then holds level through year thirty. The business is worth about $3.33 billion against $1.66 billion owed, leaving about $1.67 billion, or $6.79 per share. Margin of safety price. We are only moderately sure of the earnings level: cash generation has ranged from $161 million to $287 million in four years, and the step-up in software spending makes it unclear how much of today's capital outlay is a one-time build. The worst plausible outcome is an advertising recession that coincides with the August 2029 note maturity; with debt of roughly seven to eight times business cash flow, that combination could leave nothing for shareholders, and the structure gives little room to absorb a lost client group or a write-down at the same time. If we are wrong about the capex normalizing and about the steady fade of acquired relationships, the shares are worth close to the bear case. The company pays no dividend, so returns must come from debt paydown and buybacks, which it has been doing aggressively (about $134 million of repurchases in 2025 and $88 million in the first half of 2026, cutting diluted shares to about 246 million). The price assumes a three-to-five-year holding period. At $1.00 per share, the equity would be valued at about $246 million against roughly $100 million a year of cash available to owners after interest at the current level; if the base case holds, that cash alone would retire debt fast enough that the base case implies a 20% annual return within about five years, while the bear case implies a loss. We set the margin of safety price at $1.00 because that is the level at which the base and bull outcomes clearly compensate for a real chance of the equity being worth nothing. Changes since our previous analysis: our earlier figures were built on a different basis and are not directly comparable. The business facts that moved our estimate are the recognition of the $252 million tax receivable agreement after the April 2025 share exchange, borrowings rising to $1.45 billion by mid-2026, and the 2025 jump in software and equipment spending; on the positive side, revenue grew about 10% in the first half of 2026 and the share count has fallen by about 7% through buybacks.