Indonesia’s banking heavyweights, Bank Mandiri (BMRI) and Bank Negara Indonesia (BBNI), have unveiled their bank-only performance for January 2026, offering an early glimpse into their strategic trajectories and the health of the sector. While both exhibited growth, their distinct approaches to profitability and risk management paint a compelling picture for the year ahead.

Bank Mandiri (BMRI): Efficiency Fuels Strong Start

Profit Dynamics & Growth Levers

Bank Mandiri posted a robust bank-only net profit of Rp4.7 trillion in January 2026, marking a significant +16% year-on-year (YoY) increase. This strong start already represents 8.2% of the consensus 2026 full-year consolidated forecast, outperforming the 7.1% achieved in January 2025.

The primary engines behind this impressive profit surge were a healthy Net Interest Income (NII) growth of +10% YoY, underpinned by a dynamic +16% YoY expansion in credit. Further enhancing profitability was a disciplined approach to operational expenditures (opex), which saw a normalized increase of only +5% YoY, perfectly aligning with management’s 2026 guidance for mid-to-low single-digit growth. Crucially, a notable -22% YoY reduction in provision expenses also contributed significantly to the bottom line.

Navigating Margins and Managing Risk

Despite the strong profit growth, Mandiri’s Net Interest Margin (NIM) saw a slight dip to 4.4%, trailing both January 2025 figures and the bank’s own 2026 management guidance. However, this margin pressure was effectively mitigated by a superior Cost of Credit (CoC) performance. BMRI’s CoC was better than both January 2025 and its 2026 guidance, demonstrating an astute balance between growth and risk containment, ensuring that net profit growth remained aligned with credit expansion.

Bank Negara Indonesia (BBNI): Prudent Provisioning Shapes Early Returns

Strategic Provisioning Amidst Growth

Bank Negara Indonesia reported a bank-only net profit of Rp1.7 trillion for January 2026, reflecting a +3% YoY increase. This figure accounts for 7.7% of the consensus 2026 full-year consolidated forecast, a slight moderation from the 8.1% recorded in January 2025.

The growth in net profit was tempered by a significant +52% YoY increase in provision expenses. This strategic decision to bolster provisioning came even as Pre-Provision Operating Profit (PPOP) showcased robust health, climbing +14% YoY to Rp2.8 trillion. BBNI’s PPOP was robustly supported by a remarkable +18% YoY rise in Non-Interest Income and a strong +17% YoY increase in Net Interest Income, buoyed by a substantial +19% YoY credit growth in January 2026.

Margins and Future Outlook

BBNI’s NIM stood at 3.7%, a slight decrease from 3.9% in January 2025, yet this figure remains in line with the bank’s 2026 management guidance. The substantial provisioning spike observed in January 2026 echoes a trend from 4Q25, where consolidated provision expenses rose by +67% YoY. This indicates a deliberate management strategy to maintain a prudent level of provisioning, reinforcing the bank’s asset quality and resilience. Consequently, BBNI’s CoC for January 2026 settled at 1.1%, precisely in line with its 2026 guidance, underscoring a proactive and conservative risk management stance.

The Road Ahead: Diverse Strategies, Shared Growth Ambition

The January 2026 performance of both Bank Mandiri and Bank Negara Indonesia highlights different but equally compelling approaches to navigating the financial landscape. Mandiri’s narrative is one of efficiency-driven profit growth, capitalizing on strong NII and tight opex control. BNI, conversely, showcases a commitment to fortifying its balance sheet through proactive provisioning, even as its core operating profit drivers remain robust. Investors will keenly watch how these distinct strategies unfold throughout the year, shaping the trajectory of Indonesia’s dynamic banking sector.