Reserve Bank of India (RBI)
has issued the Commercial Banks – Credit Facilities Amendment Directions, 2026, marking one of the most consequential structural shifts in how leverage operates within India’s equity and derivatives markets. Though framed as a technical banking regulation, the circular fundamentally alters the economics of proprietary trading, broker financing and margin trading facilities (MTF).
Effective 1 April 2026, the amendment introduces sweeping changes: an explicit prohibition on bank funding for proprietary trading, mandatory 100% collateralisation of all credit facilities to capital market intermediaries (CMIs), a minimum 40% haircut on equity collateral and stringent collateral norms for bank guarantees. The message is clear: systemic stability takes precedence over leverage-driven market activity.
At the core of the framework lies a categorical ban: banks cannot provide finance to CMIs for acquiring securities on their own account, including proprietary trading or investments. Limited carve-outs exist for market-making under strict conditions, short-term debt warehousing capped at 45 days and fully secured guarantees backed largely by cash. In effect, leveraged proprietary positioning through bank lines becomes economically unviable.
The circular mandates that all credit facilities extended to CMIs must be fully secured. Partial unsecured exposures, light guarantee structures or comfort-based funding arrangements are eliminated. Every rupee of exposure must be backed by equivalent or greater collateral.
The minimum 40% haircut on equity shares marks a sharp departure from earlier practice, where liquid large-cap stocks often attracted haircuts of 12%–25%. Now, ₹100 crore worth of listed equity yields only ₹60 crore in margin value. Capital efficiency declines materially, forcing brokers either to lock in more capital or shrink exposure.
Bank guarantees—critical for obtaining trading limits from exchanges—also become capital-intensive. Guarantees must carry at least 50% collateral backing, with 25% in cash. Previously, brokers could obtain large guarantees at modest fees with minimal capital blockage. Under the new regime, a ₹1,000 crore guarantee requires ₹500 crore in collateral, including ₹250 crore in cash. The economics of scaling trading limits change structurally.
Intra-day funding is similarly restricted. Banks may extend intraday limits only for settlement mismatches in centrally cleared trades, and even then against a minimum of 50% collateral. Crucially, such funding cannot be used as trading margin. This affects institutional derivative desks, high-frequency traders and large brokers who relied on low-cost, short-duration liquidity.
MTF remains permitted but with tighter backing norms. Bank funding for MTF must be fully secured by cash, cash equivalents or government securities, with at least 50% in cash. This raises opportunity costs and compresses spreads between borrowing and lending rates. Retail MTF interest rates are likely to rise, reducing leverage appetite.
The circular also caps lending to individuals against eligible securities (excluding government securities and debt instruments) at ₹1 crore per borrower. IPO/FPO/ESOP financing is capped at ₹25 lakh per individual, with a minimum 25% margin.
Acquisition finance norms have been revamped. Banks may extend acquisition finance only to Indian non-financial companies for strategic control transactions that create long-term value. Conditions include a minimum ₹500 crore net worth, three consecutive years of profitability, an investment-grade rating for unlisted acquirers, a maximum of 75% bank financing, post-acquisition debt-to-equity not exceeding 3:1 and mandatory corporate guarantees.
The Economics of Leverage Compression
The most dramatic impact is on proprietary trading. Consider a firm deploying ₹50 crore of its own capital and ₹150 crore of bank funding, enabling an exposure of ₹200 crore. At 2% monthly return, it would earn ₹4 crore, translating to 8% monthly return on equity. Under the new rules, only ₹50 crore can be deployed. The same strategy yields ₹1 crore per month, or 2% return. The leverage multiplier disappears; annualised return compresses sharply.
Banking sources estimate proprietary book funding accounts for around ₹22,000 crore of bank exposure. Proprietary desks contributed over 50% of equity options turnover and around 30% of cash equity turnover in 2024. Removing bank-funded leverage from this ecosystem will inevitably affect liquidity dynamics.
Low-margin, high-volume strategies—cash-futures arbitrage, index arbitrage and options market-making—depend on scale and cheap funding. When capital costs rise, spreads widen and turnover declines. Historical precedent supports this. When margin requirements were tightened before 2025, average daily F&O turnover fell 44% within months.
However, this is not a collapse scenario. India’s markets operate under stringent SEBI margining, real-time risk monitoring and peak margin penalties. Institutional investors—mutual funds, insurers and foreign portfolio investors—do not rely on broker leverage. Their participation continues unaffected.
MTF and Retail Leverage
Under the old model, a retail investor buying ₹1 lakh of shares could contribute ₹20,000 and borrow ₹80,000 through MTF. Brokers funded this via bank lines and earned a spread. Now, with collateral-intensive funding requirements, brokers’ costs rise. MTF rates will increase, reducing effective buying power. Retail leverage moderates as a result.
Intra-day and Clearing Impact
Intra-day funding—estimated at ₹7,000 crore–₹8,000 crore—becomes less attractive when 50% collateral is required and usage is restricted to settlement mismatches. Professional clearing members also face 50% collateral requirements for guarantees, increasing capital intensity. Consolidation in this segment is likely.
The Haircut Shock
The jump to a 40% equity haircut is a major structural shift. A proprietary desk seeking ₹100 crore trading capital earlier needed perhaps ₹120 crore pledged equity. Now it needs about ₹167 crore. Capital blockage rises nearly 40% for the same exposure. Combined with 100% collateralisation and the proprietary funding ban, this creates multi-layered leverage compression.
Segmented Impact
Proprietary firms face the steepest hit. High-frequency traders and arbitrage desks must pivot to capital-efficient strategies. Smaller brokers, heavily reliant on bank lines, are vulnerable to consolidation. Larger brokers with stronger balance sheets may gain relative advantage.
Retail long-term investors are largely unaffected. Retail leverage users face higher costs. Institutional investors experience only marginal impact from possible liquidity thinning.
Broader Market Implications
Option premiums may rise if institutional option writers scale back, but higher premiums imply higher risk. Retail sellers lack the balance sheet strength to absorb volatility shocks.
Qualified Institutional Placements are not directly restricted, though arbitrage participation may reduce marginally. Long-term institutional demand remains intact.
Exchanges may see moderation in F&O volumes, affecting transaction-fee revenues and Securities Transaction Tax collections. Yet, India’s macro fundamentals—growth, earnings trajectory and institutional depth—remain intact.
RBI’s Rationale
The central bank’s objective is clear: to eliminate transmission of capital market shocks to bank balance sheets. By mandating full collateralisation and prohibiting proprietary funding, RBI blocks a systemic risk channel. Even if trading firms fail, bank exposure remains secured.
The amendments take effect from 1 April 2026, with grandfathering for existing facilities until maturity. The transition may create short-term competitive disparities as some participants lock in legacy terms. In the medium term, consolidation and strategy recalibration will follow. Long term, systemic leverage declines structurally.
A Structural Reset
This is not the end of trading, but the end of easy bank-funded leverage. What fades is thin-spread trading amplified by borrowed balance sheets. What survives are capital-backed, risk-disciplined strategies.
RBI has made a deliberate choice: prioritise banking stability over leverage-driven vibrancy. Markets will adapt. Liquidity may compress at the margin, transaction costs may edge higher, but the banking system becomes more insulated from capital market shocks.
For brokers and proprietary firms, the message is unequivocal—scale must now be funded by equity, not bank leverage. For policy-makers, the central question remains whether enhanced systemic resilience justifies the costs in reduced liquidity and higher capital intensity. The answer will unfold over time as India’s markets transition into a more capital-disciplined era.
