Millicom (TIGO) Q4 2025 earnings review
Record Margins and Flawless Execution Set Up a High-Stakes 2026
Millicom capped off a transformational year by crushing its cash flow targets, delivering $916M in Equity Free Cash Flow (EFCF) versus an initial $750M guide. Organic service revenue accelerated to 5.2% YoY, and relentless cost discipline drove Adjusted EBITDA margins to a record 47.1%. The company digested two major acquisitions (Uruguay and Ecuador) seamlessly within the quarter, immediately extracting efficiencies. However, the narrative now shifts from organic optimization to high-wire M&A integration. With the incoming consolidation of Coltel in Colombia—a currently cash-burning asset requiring triple-digit millions in restructuring—and the new off-balance-sheet Chilean venture, Millicom's leverage will temporarily spike in early 2026. The easy cost-cutting wins are largely behind them; the next phase of value creation demands flawless turnaround execution in newly acquired territories.
🐂 Bull Case
The operational playbook is working flawlessly. Pre-to-postpaid migration and stringent cost controls drove absolute EBITDA up 25.9% YoY (18% organically), expanding margins across almost all geographies. Six operations are now in the 'Club 50' (>50% EBITDA margin).
Management executed a 30% headcount reduction in Uruguay and Ecuador within the first month of ownership, pushing these previously low-margin assets into the mid-40% EBITDA margin range by January 2026.
🐻 Bear Case
Buying out EPM's Tigo stake and Telefónica's Coltel stake will drain nearly $790M in cash during Q1 2026, piercing the 2.5x leverage ceiling. Another $220M is due for the La Nación stake later in the year.
Coltel is currently generating negative equity free cash flow. Integrating it will require 'triple-digit' million restructuring costs in 2026, posing a material execution risk to group cash flow targets.
⚖️ Verdict: 🟢
Bullish. Millicom proved it can deliver industry-leading margins despite LatAm's notorious FX volatility. While 2026 M&A integration poses clear risks, management has earned the credibility to execute.
Key Themes
Pre-to-Post Migration Driving Upside
Millicom's core growth engine—migrating prepaid users to postpaid contracts—continues to deliver. The company added over 200,000 organic postpaid customers in Q4 (1.8M including M&A). With only 22% of its 49 million customers currently on postpaid plans, the runway remains massive. Each migration structurally upgrades ARPU and reduces churn.
Coltel Turnaround Will Weigh on 2026 Cash Flow
Management was transparent that the newly acquired Coltel asset in Colombia is currently operating at a 'negative run rate equity free cash flow'. Bringing this asset up to Millicom's standards will require significant capital, with the CFO guiding for 'triple-digit' million restructuring costs in 2026. This fundamentally alters the immediate cash flow profile of the Colombian segment.
Bolivia Stabilizes: From Headwind to Tailwind
After a brutal year where the Boliviano's devaluation (under IAS 21) stripped out roughly $60M in revenue per quarter, the currency has stabilized around 9 BOB/USD. As a result, Bolivia returned to triple-digit territory, growing service revenue by 5.5% YoY in Q4 and achieving a massive 53% EBITDA margin—becoming the newest member of Millicom's 'Club 50'.
Quality of Q4 Earnings Puffed by B2B One-Offs
While Q4 top-line growth was spectacular, management noted that $16M of the B2B revenue came from one-off government projects in Panama and Colombia. These revenues 'are not necessarily recurring in nature,' meaning the true underlying organic run-rate heading into 2026 is slightly softer than headline figures suggest.
Chile JV: Limiting Downside, Preserving Upside
The acquisition of Telefónica's Chilean assets alongside NJJ ($50M upfront) is structured masterfully to protect Millicom's balance sheet. By taking a 49% non-consolidated stake, Millicom avoids inheriting Chile's current daily cash burn and debt. The call option in years 5 and 6 provides a clean path to full ownership once the asset is stabilized.
Minimum Wage Hikes Squeeze Colombian Margins
Despite a record 44% quarterly margin in Colombia, management explicitly warned that margins will compress sequentially in Q1 2026. This deceleration is driven by a material, government-mandated increase in minimum wages, highlighting the constant macro-inflationary pressures inherent to LatAm operations.
Fixed-Mobile Convergence Solidifies the Base
The Home segment reversed its historical bleeding, effectively flatting out (-0.3% YoY) with 40,000 net new home additions in Q4. Tying broadband to mobile via Fixed-Mobile Convergence (FMC) is delivering 'materially lower churn' compared to standalone broadband subscribers, setting up the segment for a return to positive revenue growth in 2026.
Other KPIs
A massive beat versus the initial $750M full-year target. Even excluding the one-off cash proceeds from the Lati tower sale, organic EFCF hit $864 million. This was driven by a $284 million uplift in EBITDA and $63 million in lower spectrum charges, easily absorbing the DOJ settlement costs paid earlier in the year.
Guatemala remains the undisputed cash cow of the group. Full-year OCF reached a record high, driven by 20% YoY postpaid subscriber growth and disciplined capital allocation. Management frequently refers to this unit as the 'north' star for the rest of the portfolio's operational standards.
Guidance
Stable. While technically a slight deceleration from the reported $916M in FY25, it represents acceleration from the organic $864M baseline. This factors in low-to-mid double-digit EFCF contributions from Uruguay and Ecuador, entirely offset by the anticipated cash burn and restructuring costs of the Coltel turnaround.
Decelerating. Leverage ended FY25 at a highly disciplined 2.31x. However, due to roughly $790M in outlays for EPM and Telefónica stakes in Q1 2026, leverage will 'pierce' above the 2.5x ceiling in the first half of the year before deleveraging back down to the 2.5x target by year-end.
Key Questions
Coltel Cash Flow Inflection
You noted Coltel is currently on a negative cash flow run rate and will require triple-digit restructuring costs in 2026. What is the specific timeline for Coltel to reach EFCF neutrality, and how much total capital will be required to get there?
Margin Defense in Colombia
With the significant minimum wage increases in Colombia pressuring Q1 margins, how much of this cost can be passed onto consumers via price increases versus offset by internal efficiency programs?
Uruguay & Ecuador Tower Portfolios
Having successfully monetized the Lati tower portfolio in Central America, do you see near-term opportunities to execute similar sale-leaseback transactions for the newly acquired passive infrastructure in Uruguay and Ecuador?
Dividend Growth Philosophy
Given the temporary spike in leverage expected in H1 2026, how does the Board weigh the decision to sustain or grow the current dividend against the necessity to rapidly deleverage back into the 2.0x-2.5x comfort zone?