A Weak Year-to-Date Figure Masking a Strong Third Quarter
9M 2025 extends the real profit decline H1 2025's coverage documented: revenue fell 1.6% YoY to Rp41,161.6 billion and net income attributable to owners fell 7.5% to Rp3,587.4 billion - the third straight 2025 period with a genuine, not one-off-distorted, YoY decline. But the cumulative figure hides a real inflection within the quarter: on the company's own QoQ presentation basis, Q3 2025 alone grew revenue 3.8% and EBITDA 0.8% versus Q2, and normalized net profit jumped 29.1% quarter-over-quarter to Rp1,319 billion from Q2's Rp1,021 billion - the strongest single quarter this site has tracked for Indosat in 2025.
The AI-infrastructure story Q1 and H1 2025's coverage tracked reached a new milestone this quarter: Indosat's presentation states its NVIDIA GB200 servers are now commercially live, with current capacity fully contracted - meaning initial demand has already absorbed the available capacity, a genuinely strong signal for a business line that didn't exist a year ago. The company frames this as "setting up for scale in 2026." Blended ARPU also crossed Rp40,000 for the first time, continuing the multi-year ARPU-growth trend this site has tracked since Q1 2023's pricing shift.
On the balance sheet, total debt fell back to Rp15,135.4 billion from H1's Rp17,681.5 billion (-14.4% QoQ), alongside a similarly sized drop in cash (Rp2,426.5 billion, down from H1's Rp5,174.3 billion) - Indosat appears to have used a large share of its cash reserves to repay part of the debt taken on to fund Q2's AI-infrastructure surge, rather than let leverage climb further.
The Prescription
Indosat should disclose actual AI/GPUaaS revenue realized to date against the US$35 million 2025 target the company has now reiterated across three straight quarters (Q1, H1) - "capacity fully contracted" is a strong demand signal, but doesn't itself confirm the revenue is flowing through the P&L yet, and a reader deserves to see the actual number given how much capex and debt the initiative has consumed. What it should keep doing: Q3's clear sequential improvement is a genuinely good sign, and if it continues into Q4, FY2025's full-year comparison against FY2024's tougher one-off-free base should look considerably better than the cumulative 9M figure suggests.
Key Financial Metrics
9M 2025 (nine months ended September 30, 2025) vs 9M 2024, consolidated
FX: Rp16,650 = US$1 (September 30, 2025) - period-end market quote, used only to convert the USD columns.
| Metric | 9M 2025 (Rp) | 9M 2025 (US$) | 9M 2024 (Rp) | YoY (Rp) | YoY (US$) |
|---|---|---|---|---|---|
| Revenue | Rp41,161.6B | ~$2,472.1M | Rp41,812.0B | ⚠️ -1.6% | ⚠️ |
| EBITDA» (company-disclosed, reported; Q1+Q2+Q3) | Rp19,348.0B | ~$1,162.0M | Rp20,000.0B | ⚠️ -3.3% | ⚠️ |
| Operating Income» (pre-financing subtotal, no one-off either period) | Rp7,841.6B | ~$470.9M | Rp8,468.3B | ⚠️ -7.4% | ⚠️ |
| Net Income (attributable to owners) | Rp3,587.4B | ~$215.5M | Rp3,878.2B | ⚠️ -7.5% | ⚠️ |
| ...of which, consolidated total (incl. non-controlling interests») | Rp3,843.9B | ~$230.9M | Rp4,158.9B | ⚠️ -7.6% | ⚠️ |
| Free Cash Flow» (operating cash flow - capex) | Rp5,442.1B | ~$326.8M | Rp6,191.3B | ⚠️ -12.1% | ⚠️ |
| Total Cash | Rp2,426.5B | ~$145.7M | Rp4,007.5B (9M 2024 close) | ⚠️ -39.5% | ⚠️ |
Total debt fell to Rp15,135.4 billion from H1 2025's Rp17,681.5 billion (-14.4% QoQ) as Indosat used cash reserves to repay part of the borrowing that funded H1's AI-infrastructure surge - still up from Q1 2025's Rp13,602.7 billion, so the net effect of 2025's AI buildout is a real, if now-stabilizing, increase in leverage versus where the year started. Free cash flow's cumulative -12.1% YoY decline is a smaller drag than H1's -68.8%, since Q3 alone generated meaningfully more free cash flow than Q1 or Q2 did individually.
9M 2025's cumulative 7.5% profit decline hides a real Q3 recovery - normalized net profit grew 29.1% quarter-over-quarter, and Indosat's GB200 AI server capacity is now commercially live and fully contracted. Whether Q4 confirms this as a genuine turnaround or a one-quarter bounce is the key question heading into FY2025's close. See Beyond the Usual below.
Key Operational Metrics
Indosat's presentation discloses blended ARPU crossing Rp40,000 for the first time in Q3 2025, up from roughly Rp33,000 in Q1 2023 - a sustained, multi-year upward trend this site has tracked across every period since the January 2023 minimum-SIM-card-price increase. A numeric total subscriber count wasn't available in text-extractable form this quarter.
Segment Comparison
| Segment | Revenue 9M 2025 | Revenue 9M 2024 | YoY | Share of Revenue |
|---|---|---|---|---|
| Selular (cellular) | Rp34,557.3B | Rp35,234.8B | ⚠️ -1.9% | 83.9% |
| MIDI (enterprise/data/internet) | Rp6,000.3B | Rp5,907.2B | ✅ +1.6% | 14.6% |
| Telekomunikasi Tetap (fixed) | Rp604.0B | Rp670.1B | ⚠️ -9.9% | 1.5% |
| Total | Rp41,161.6B | Rp41,812.0B | ⚠️ -1.6% | 100% |
Selular
Declined 1.9% cumulatively, a slight improvement from H1's cumulative -3.6% - consistent with a Q3 recovery, though still negative year-to-date.
MIDI
Turned modestly positive (+1.6% cumulatively) after H1's roughly flat +1.2% - the first sign that the AI/GPUaaS capacity now being sold ("fully contracted," per this quarter's disclosure) may be starting to show up in segment revenue, though the magnitude is still small relative to the capex behind it.
Telekomunikasi Tetap
Declined 9.9% cumulatively, a smaller decline than H1's cumulative -13.2% - improving, but still the segment's fourth straight period of YoY decline.
Beyond the Usual
GB200 Capacity Is Now Commercially Live and Fully Contracted, With Scale Targeted for 2026
Indosat's Q3 2025 presentation states its NVIDIA GB200 AI servers are commercially live with current capacity fully contracted, and that the company is "working closely with customers to deliver turnkey vertical solutions" while "setting up for scale in 2026." This directly follows the buildout this site has tracked from Q1 2025's initial GPU order through H1 2025's "first in Asia" commercial launch - "fully contracted" capacity is a genuinely positive demand signal for a new business line, worth green rather than yellow this quarter since it confirms actual customer uptake rather than just a capital commitment.
Blended ARPU Crossed Rp40,000 for the First Time in This Site's Coverage
The presentation's own multi-quarter ARPU chart shows a steady climb from roughly Rp33,000 in Q1 2023 to Rp40,000 in Q3 2025, attributed to "hyper-personalization initiatives - powered by AI" and continued "rationalization of freebies & discounts" - the same pricing-discipline story this site has tracked since FY2023's coverage first quantified the trade-off, now showing AI-driven personalization as an explicitly named contributor to it.
Total Debt's Round-Trip This Year Suggests Deliberate, Not Runaway, AI-Capex Financing
Debt rose 30.0% in Q2 2025 to fund the AI-infrastructure buildout, then fell 14.4% in Q3 as cash reserves were used to repay part of it - a round-trip pattern that reads as deliberate bridge financing for a specific capex wave rather than a sustained shift toward higher structural leverage, though it's still one quarter too early to be certain which interpretation is right.
Target Valuation Range
Bottom line: roughly Rp1,220-Rp2,050 fair-value range (bear-to-bull, annualized EV/EBITDA-based) against a Rp1,750 actual close - the stock traded in the upper-middle of that range, a reasonable reflection of a business with a genuinely strong Q3 recovery and a credible new AI revenue line, still working through a weak cumulative year.
| Market cap → enterprise value | 9M 2025 (period-end, post-split) |
|---|---|
| Share price (period-end, nominal) | Rp1,750 |
| Shares outstanding (post-split) | 32,250,810,957 |
| Market capitalization | ~Rp56,438.9B (~$3,389.1M) |
| Plus: total principal debt (loans, bonds, sukuk; excl. lease liabilities) | Rp15,135.4B |
| Less: cash and cash equivalents | Rp2,426.5B |
| Enterprise value | ~Rp69,147.8B (~$4,153.9M) |
| Peer/multiple sanity check | 9M 2025 (annualized) | H1 2025 (annualized) |
|---|---|---|
| EBITDA (annualized) | Rp25,797.3B | Rp25,710.0B |
| EV / EBITDA | ~2.68x | ~3.11x |
| Net debt (total debt - cash) | Rp12,708.9B | Rp12,507.2B |
| Net debt / EBITDA | ~0.49x | ~0.49x |
| P/E (annualized, reported EPS) | ~11.8x | ~14.4x |
| Scenario | Key assumption | Multiple | Implied EV | Implied nominal price |
|---|---|---|---|---|
| Current (9M 2025 close) | actual market price | ~2.68x annualized EBITDA | ~Rp69,148B | Rp1,750 |
| Bear | Q3's recovery proves temporary and the cumulative 2025 decline resumes in Q4 | ~2.25x | ~Rp58,044B | ~Rp1,225 |
| Base | Q3's improvement holds into Q4, AI revenue scales gradually through 2026 | ~2.9x | ~Rp74,812B | ~Rp1,845 |
| Bull | GB200 capacity expansion and "scale in 2026" plans convert into materially higher AI-segment revenue | ~3.25x | ~Rp83,841B | ~Rp2,056 |
Net debt/EBITDA held flat at ~0.49x quarter-over-quarter, matching the company's own disclosed figure exactly, and the round-trip debt pattern this quarter suggests leverage isn't drifting upward uncontrolled even amid heavy AI-infrastructure investment. No multi-year DCF yet: this site would want to see FY2025's full-year close and at least the first sign of actual AI/GPUaaS revenue realized against the US$35 million target before building a standalone projection - the pieces (a real new capacity-constrained revenue line, a stabilizing balance sheet, a strong Q3) are coming together, but one more quarter would meaningfully de-risk the picture.
PT Indosat Tbk's unaudited interim consolidated financial statements for the nine-month period ended September 30, 2025, together with the accompanying notes, and the company's 9M 2025 investor presentation.