Malaysia's five digital banks have signed up almost 2mn customers in barely two years, a fast start that has yet to loosen the grip of the country's entrenched lenders.

Together the five - Grab and Singtel's GX Bank, Boost Bank, AEON Bank, Ryt Bank and KAF Digital Bank - held MYR3.1bn ($766mn) in deposits and served 1.97mn users by September 2025, according to finance ministry data. That is a sliver of a system whose assets run to around 190% of GDP, and the incumbents are not standing still.

The contest matters because Malaysia runs one of the most concentrated and profitable banking markets in Southeast Asia, an oligopoly of six groups that has ridden out the 1MDB scandal, a soft ringgit and a full rate cycle with barely a scratch. The newcomers are the first serious test of that comfort in a generation.

“Malaysian banks enter the current cycle from a position of strength, with solid capital and asset quality offsetting margin pressure and external uncertainties,” said Ethan Lee, a director at Fitch Ratings, in an August peer review of the six largest groups.

Challengers at the gate

GX Bank, a venture of ride-hailing group Grab, Singapore's Singtel and Malaysia's Kuok family, became the country's first digital bank in 2023, offering goal-based savings “pockets” paying up to 3% a year and folded straight into the Grab app. It has since been joined by Boost Bank, backed by telco Axiata, AEON Bank, Ryt Bank and KAF Digital Bank.

Bank Negara Malaysia capped the newcomers' asset size while they find their feet, and their combined deposits remain tiny next to the majors. Their real weight is competitive: aimed at younger and lower-income Malaysians the big banks have long underserved, they are pushing the incumbents to sharpen their own apps rather than surrender share.

A sector built like a fortress

Fitch's review lays out just how solid the ground is. The six largest groups account for around 70% of system loans. The three biggest - Maybank, CIMB Group and Public Bank - each hold market shares of 12%-19%, while the mid-sized trio of RHB Bank, Hong Leong Bank and AmBank take 6%-9% apiece.

The credit metrics read like a stress-test pass. The system's gross non-performing loan ratio held at 1.4% in 1Q26, down from 1.5% a year earlier; the common equity Tier 1 ratio stood at 14.0% in May; net interest margins were flat at 2.0%; and loans grew a measured 5.4% y/y. Payout ratios ran at 47%-72%, and the loan-to-deposit ratio barely moved at 87.7%.

Fitch left its Outlook on five of the six at 'stable'. The exception is AmBank, whose 'BBB-' rating carries a 'positive' Outlook after the lender adopted internal ratings-based models that trimmed its risk-weighted assets - the review's one flash of upward movement. Public Bank and Hong Leong Bank keep the most conservative books, while CIMB Group's heavier regional footprint in Indonesia and Thailand brings a higher risk appetite. Only Maybank, CIMB and Public Bank are designated systemically important, and Fitch judges the state's readiness to backstop the system as high.

Big banks, bigger profits

Malayan Banking, or Maybank (KLSE: 1155), the country's largest lender by assets, set the tone with full-year 2025 net profit of MYR10.51bn, up 4.2%, and a return on equity of 11.7%. CIMB Group leans on its Indonesian and Thai arms for growth, while Public Bank's famously cautious lending keeps its impaired-loan ratio among the lowest in the market. Between them the majors throw off the kind of returns that make Malaysian banking a fixture of regional dividend portfolios.

The Islamic edge

Malaysia's other claim is as a global hub for Islamic finance, and here the numbers are closing on the conventional system. Shariah-compliant financing and deposits each account for around 40% of the market, with Islamic assets of roughly MYR1.3 trillion, and Bank Negara has long targeted parity between the two systems.

The plumbing is being modernised in step. State mortgage agency Cagamas in July priced Malaysia's first dual-track sukuk tied to the new transaction-based MYOR-i rate, a MYR300mn deal built to shut out the rate-rigging risks of the old interbank benchmark. Bank Islam Malaysia, the cooperative lender Bank Rakyat and takaful insurer Syarikat Takaful Malaysia anchor a deep bench of dedicated Islamic institutions, while foreign names - OCBC Malaysia, UOB Malaysia and HSBC Malaysia - run their own Islamic windows alongside the domestic field.

Rates, ringgit and the 1MDB shadow

The backdrop is unusually calm. Bank Negara has held its Overnight Policy Rate at 2.75% and is seen keeping it there through 2027, even as tighter liquidity pushed three-month Klibor to a one-year high of 3.46%. Growth is doing the talking: Bloomberg reported on August 14 that second-quarter GDP was revised up to 6% y/y, keeping Malaysia among the region's fastest-growing economies and within touching distance of World Bank high-income status.

The one shadow that will not quite lift is 1MDB. Goldman Sachs in May agreed to pay $500mn to settle a shareholder class action tied to the looted sovereign fund, drawing a line under the Wall Street end of a scandal that still colours how outsiders read Malaysian finance.

For now the fortress holds. The challengers are winning the young and the underbanked, the majors are minting record profits, and the central bank has kept the cost of money steady while the ringgit absorbs the strain. Whether GX Bank and its rivals can turn 2mn app sign-ups into a real dent in a system this profitable is the question that will shape the sector's next decade.