The Small Interfering RNA (siRNA)-based Therapeutics segmentation by application distinguishes four primary demand drivers. Oncology accounts for roughly 40 % of revenue, reflecting intensive clinical pipelines targeting KRAS, MYC and other oncogenes, where high unmet need and premium pricing amplify market impact. Genetic disorders represent about 30 % of the market, driven by FDA‑approved products for hereditary transthyretin amyloidosis and ongoing trials for Huntington’s disease, where disease rarity yields higher per‑patient pricing. Infectious diseases contribute an estimated 20 %, propelled by siRNA candidates against hepatitis B and emerging viral pathogens, with funding from both public and private sectors sustaining growth. The residual others segment (≈10 %) aggregates niche indications such as ophthalmology, cardiovascular and metabolic disorders, where limited pipelines and modest pricing constrain share. Collectively, these application categories shape the overall siRNA‑based therapeutics market size by dictating R&D allocation, regulatory focus, and reimbursement dynamics.