Islamic microfinance institutions must expand outreach while preserving liquidity, solvency and Sharia integrity. This article examines whether murabahah, mudharabah and musyarakah portfolio composition is associated with the financial resilience of Indonesian Lembaga Keuangan Mikro Syariah (LKMS). Using a province-period panel of 200 observations and a complementary legal-form product-mix layer, the study shows that LKMS resilience is heterogeneous across regions and funding structures. Larger provincial systems extend more financing but hold thinner equity buffers. Product-mix evidence suggests that diversification is resilience-enhancing only when matched with governance, liquidity and borrower-monitoring capacity. The article advances a fit-based theory of resilient Islamic microfinance.
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