India’s proprietary trading firms face overhaul as RBI tightens lending norms

India’s Reserve Bank just pulled the financial equivalent of taking the car keys away from a teenager. Starting July 1, 2026, banks will face dramatically tighter rules on how they lend to stock and commodity brokers, with proprietary trading, the practice of firms betting with their own capital, taking the biggest hit.

The RBI amended its Commercial Banks Credit Facilities Directions on February 13, 2026, imposing new restrictions that effectively ban banks from extending credit for brokers’ own securities purchases. The only carve-out: limited market-making activities.

What the new rules actually change

All loans to capital market intermediaries now require 100% collateralization. The RBI went further by imposing a 40% haircut on equity collateral: if a broker pledges shares worth 100 rupees, the bank will only lend 60 rupees against them.

Bank guarantees provided to these firms must also meet the full collateral requirement.

The rules were originally supposed to kick in on April 1, 2026. After industry feedback, the RBI pushed implementation back three months to July 1. The delay was a concession on timing, not on substance. The regulations themselves remain unchanged.

The RBI’s stated goal is straightforward: protect depositors’ funds and reinforce banking sector stability. The central bank has been on a broader campaign to curb excessive leverage and speculative behavior in India’s equity derivatives markets, and these lending norms are the latest tool in that effort.

Why this matters for India’s markets

Proprietary traders account for over 50% of equity options volume on the National Stock Exchange and roughly 30% of cash equity trading.

Industry leaders have been sounding alarms since the rules were first announced. Higher collateral requirements mean brokers need more capital to support the same level of trading activity. Some trading firms could see their margins cut roughly in half, according to industry estimates. Larger firms may respond by shifting operations offshore, while smaller firms face a starker choice: adapt or shut down.

The liquidity question and what investors should watch

Brokers’ associations are actively lobbying the RBI for exceptions, particularly for firms that serve as liquidity providers. Their argument: restricting credit to market makers will reduce market efficiency and widen bid-ask spreads, ultimately hurting retail investors who benefit from tight, liquid markets.

A reduction in proprietary trading activity could mean lower liquidity in equity derivatives, where these firms dominate. India has been one of the world’s fastest-growing derivatives markets in recent years. These regulations represent a deliberate choice to prioritize financial stability over trading volume growth.