Indosat Ooredoo Hutchison Hits New Heights: Why a Record-Breaking ARPU and AI Pivot are Changing the Game

Indosat Ooredoo Hutchison (ISAT) has just dropped its fourth-quarter results for 2025, and the numbers are telling a very clear story: the merger is no longer just about integration—it is about high-octane growth. The company reported a net profit of Rp 1.9 trillion for the final quarter of the year, representing a staggering 86 percent jump year-on-year and a 54 percent increase from the previous quarter.

This explosive growth in the fourth quarter pushed the full-year net profit for 2025 to Rp 5.5 trillion. That is a 12 percent year-on-year increase, coming in at a solid 114 percent of what market analysts had predicted. While many in the industry were bracing for a slowdown, Indosat managed to keep its EBITDA margins stable at 47 percent, proving that it can scale without sacrificing profitability.

The Quality Over Quantity Shift

For a long time, the Indonesian telco market was a volume game—who could grab the most subscribers with the cheapest SIM cards? Those days are fading. Indosat’s latest data shows a deliberate shift toward value. The company’s Average Revenue Per User (ARPU) climbed to Rp 44,000, a 13.1 percent increase year-on-year and a 10 percent jump from the third quarter. This is the highest ARPU level the company has seen since the Ooredoo and Hutchison merger in 2022.

Interestingly, this financial surge happened even as the total subscriber base dipped slightly by 1.1 percent. Management isn’t worried about the slight drop in headcounts; in fact, it’s a sign of a healthier competitive environment. By focusing on high-value customers and maintaining pricing discipline, Indosat is proving that quality beats quantity every time.

AI and Hyper-Personalization: The Secret Sauce

So, how is Indosat convincing users to spend more? The answer lies in technology. Management highlighted that their AI-powered hyper-personalization initiatives have been a major driver for customer engagement. By using data to offer the right services to the right people at the right time, Indosat has enhanced the overall customer experience, making their ecosystem stickier than ever.

This isn't just about better marketing; it’s about a fundamental shift in how a telco operates. The multimedia, data communication, and internet segments saw revenue rise by 13 percent year-on-year, largely thanks to these digital-first strategies.

Beyond Connectivity: The Rise of GPU as a Service

Perhaps the most exciting development in this report is the official entry of Indosat into the AI infrastructure space. In September 2025, the company launched its GPU as a Service (GPUaaS) business, and it is already contributing to the bottom line.

In just the fourth quarter, GPUaaS brought in $20 million in revenue. Looking ahead to 2026, the company is projecting this to grow to between $50 million and $60 million based on contracts already signed. This move positions Indosat as a critical player in the regional AI boom, providing the raw computing power needed for the next generation of digital services.

The $700 Million Fiber Strategy

Indosat is also making big moves on the physical infrastructure side. The company expects to receive a massive $700 million windfall in the middle of 2026 from the transfer of its fiber optic network into a new entity called FiberCo. Partnering with the Arsari Group and Northstar Group, Indosat will hold a 45 percent stake in this venture.

While ISAT won’t consolidate FiberCo’s earnings, it will retain operational control. This maneuver allows Indosat to unlock significant capital while aggressively pursuing growth in the Fiber-to-the-Home (FTTH) market, which remains one of the largest untapped opportunities in Indonesia’s digital landscape.

A Compelling Case for Investors

From a market perspective, ISAT looks increasingly attractive. Currently trading at 4.6 times EV/EBITDA and 13.5 times forward earnings, it is sitting at a discount compared to many of its regional peers. With a net debt to EBITDA ratio of only 0.5 times, the balance sheet is incredibly lean, giving the company plenty of room for further investment.

Analyst estimates are now clustering around a fair value of Rp 3,000 to Rp 3,300, suggesting a potential upside of up to 50 percent from recent levels. As Indosat continues to prove that it can maintain ARPU momentum and scale new businesses like GPUaaS, the market is beginning to realize that this is no longer just a traditional phone company—it’s a diversified digital infrastructure powerhouse.