UBS Group AG generates revenue through four distinct business divisions, each with specific revenue streams and margin profiles that collectively produced $47.69 billion in total revenue for FY2025. The Global Wealth Management division is the crown jewel, contributing approximately $25.45 billion in revenue in FY2025, or roughly 53% of total group revenue. This division serves ultra-high-net-worth individuals, high-net-worth individuals, and affluent retail clients across the Americas, Europe, Asia Pacific, and Emerging Markets. Revenue within Global Wealth Management flows from three primary channels: net interest income ($6.55 billion in FY2025, up 11% from $5.90 billion in FY2024), recurring net fee income ($13.67 billion in FY2025, up 13% from $12.08 billion in FY2024), and transaction-based income ($5.16 billion in FY2025, up 25% from $4.12 billion in FY2024). The recurring net fee income is the most valuable component, as it represents asset-based management fees that persist regardless of trading activity — in FY2025, this stream grew 13% year-over-year, driven by positive market performance and the full-year consolidation of Credit Suisse's wealth management assets. Net interest income benefited from higher interest rates but faced pressure from deposit margin compression as clients shifted to lower-margin products. Transaction-based income surged 25% in FY2025, reflecting higher client activity levels, particularly in Asia Pacific and the Americas. The division's cost/income ratio was 81.6% in FY2025, and it contributed $4.62 billion in pre-tax profit. The Personal & Corporate Banking division, operating primarily in Switzerland, generated $8.24 billion in revenue in FY2025, up 15% from $7.16 billion in FY2024. This division serves 2.5 million personal banking clients and more than 85% of the 1,000 largest Swiss corporations through 279 branches and 1,250 ATMs. Revenue streams include net interest income ($4.51 billion), recurring net fee income ($1.70 billion), and transaction-based income ($2.10 billion). The division's pre-tax profit was $1.65 billion in FY2025, with a cost/income ratio of 75.7%. This division is structurally important because it provides stable, low-risk profits that offset the volatility of investment banking and wealth management, and it serves as a client acquisition funnel — retail clients who build sufficient wealth are transferred to Global Wealth Management. The Asset Management division generated $4.20 billion in revenue in FY2025, up from $3.75 billion in FY2024, with $1.10 trillion in invested assets. Revenue comes primarily from management fees based on assets under management, with performance fees contributing a smaller but volatile component. The division's pre-tax profit was $1.10 billion in FY2025. The Investment Bank, which UBS has repeatedly tried to shrink, generated $9.84 billion in revenue in FY2024 (FY2025 figures not fully broken out in the same detail), with Global Markets contributing $7.46 billion and Global Banking contributing $2.38 billion. Within Global Markets, Equities generated $5.56 billion and Foreign Exchange, Rates and Credit generated $1.89 billion. The Investment Bank's pre-tax profit was $987 million in FY2024, a dramatic improvement from $130 million in FY2023, but the division remains a source of volatility and regulatory risk. UBS has announced plans to further reduce the Investment Bank's risk-weighted assets and exit non-core fixed-income trading activities inherited from Credit Suisse. The Non-core and Legacy division, which houses Credit Suisse's toxic assets and wind-down operations, reported negative revenues of $128 million in FY2025 and a pre-tax loss of $3.00 billion, down from a $3.39 billion loss in FY2024. This division is expected to shrink over time as positions are exited, but it continues to consume significant capital and management attention. Group Items, which includes central corporate functions, reported a pre-tax loss of $2.17 billion in FY2025. The overall group cost/income ratio was 90.2% in FY2025, an improvement from 93.0% in FY2024 but still elevated due to integration costs. Integration-related expenses totaled $5.05 billion in FY2025, broken down as $1.67 billion in Global Wealth Management, $989 million in Personal & Corporate Banking, $258 million in Asset Management, $354 million in the Investment Bank, $879 million in Non-core and Legacy, and $897 million in Group Items. These expenses include personnel costs for dedicated integration staff, retention awards, redundancy costs, incremental depreciation from shortened asset lives, and consulting fees. UBS expects these costs to decline significantly after 2026 as the integration completes. The bank's revenue model is fundamentally dependent on assets under management — $6.99 trillion as of FY2025 — because management fees are calculated as a percentage of these assets. A 1% decline in global equity markets would reduce fee income by approximately $2.5 billion annually. Net interest income is the second-largest revenue stream and is sensitive to central bank interest rate policies; the bank estimates that a +100 basis point parallel shift in yield curves would increase annual net interest income by approximately $1.6 billion in the first year. Transaction-based income is the most volatile, dependent on client trading activity, market volatility, and M&A deal flow. If Global Wealth Management's recurring net fee income disappeared, UBS would lose approximately 29% of its total revenue and its most stable, highest-margin income stream — the division that makes UBS the world's largest private bank. The Personal & Corporate Banking division's net interest margin was 149 basis points in FY2025, down from 168 basis points in FY2024, reflecting deposit margin compression as clients shifted to lower-margin products in a higher-rate environment. The division's loan portfolio totaled $313.1 billion in gross loans, with customer deposits of $315.2 billion providing a stable funding base. The Asset Management division's revenue is split between management fees on institutional mandates and performance fees, which are highly volatile — in FY2025, performance fees were a modest contributor compared to the boom years of 2020-2021. The Investment Bank's revenue is the most cyclical, with equities trading benefiting from market volatility and M&A advisory fees dependent on deal flow. In FY2024, Global Banking revenue surged 48% to $2.38 billion, driven by higher M&A activity and equity underwriting, but this momentum may not persist if deal flow slows. The Non-core and Legacy division is a pure cost center, with negative revenue and $3.00 billion in pre-tax losses in FY2025, and UBS has committed to winding down these positions as quickly as possible without incurring fire-sale losses. The bank's total operating expenses of $43.04 billion in FY2025 include $4.29 billion in integration-related operating expenses and $759 million in integration-related revenue impacts, meaning that without integration costs, the cost/income ratio would have been approximately 79.5% — still above target but significantly closer to sustainable levels.