These are the right questions. The short answer is that SLBM is one of the better-protected market mechanisms available to retail investors in India, specifically because of how it is structured at the exchange level. But that does not mean it is risk-free. There are specific risks worth understanding before you start.

This post separates what is protected by the regulatory structure from what you need to manage yourself.

In most countries, securities lending is conducted over the counter (OTC), meaning transactions are negotiated bilaterally between a lender and a borrower through a prime broker or custodian. The lender takes on the credit risk of the borrower. If the borrower defaults, the lender may not recover the full value of the lent shares.

India’s SLBM works differently. It is exchange-traded. Every lending and borrowing transaction goes through the exchange platform (NSE or BSE), and every transaction is cleared and settled through the exchange’s clearing corporation. This creates a central counterparty structure that eliminates direct exposure between the lender and the borrower.

The two clearing corporations are:

• NSE Clearing Ltd (NCL): clears and settles all SLBM transactions on NSE. SEBI-regulated, with mandatory net worth and risk management requirements.
• Indian Clearing Corporation Ltd (ICCL): clears and settles SLBM transactions on BSE.

Neither you (the lender) nor the borrower deal with each other directly. Both deal only with the clearing corporation. This is why counterparty risk for lenders is effectively eliminated within the clearing structure.

Before any SLBM transaction is executed, the borrower must deposit 100 percent of the value of the shares being borrowed as collateral with the clearing corporation. This collateral can be in the form of cash, bank guarantees, or approved securities with appropriate haircuts.

This 100 percent requirement means the clearing corporation holds more than enough assets to make the lender whole in the event the borrower defaults. Even if the stock price rises significantly during the lending period (which would be a loss for the borrower on their short position), the 100 percent initial collateral provides the buffer.

The clearing corporation monitors the collateral value relative to the current market value of the lent shares on a daily basis. If the market value of the borrowed shares rises significantly (which increases the potential loss for the borrower), the clearing corporation issues a mark-to-market margin call to the borrower, requiring additional collateral to be deposited.

This daily margining ensures the collateral remains adequate throughout the lending period, not just at the start of the contract.

If a borrower fails to return the shares at contract expiry, the clearing corporation steps in and completes the settlement using its own resources and the collateral it holds. The lender always receives their shares back (or the equivalent value) at the contracted expiry date, regardless of what the borrower does.

This settlement guarantee is the most important safeguard for lenders. Your shares will come back to your demat account at expiry. The clearing corporation’s guarantee makes this certain within the clearing structure.

SLBM is governed by SEBI circulars covering eligible securities, collateral requirements, settlement mechanics, and reporting obligations. SEBI requires the clearing corporations to maintain minimum net worth, publish settlement statistics, and disclose any operational issues. The regulatory oversight means there is a formal accountability structure above the clearing corporations.

Not all stocks are eligible for SLBM. The NSE maintains an approved list updated monthly. Eligible stocks are generally liquid, large cap stocks from the Nifty 200 and F&O segment. Less liquid or more volatile stocks are excluded. This filtering reduces the risk of a borrower being unable to return illiquid or suspended shares.

The clearing corporation’s guarantee covers counterparty and settlement risk. It does not cover the following risks, which you must manage yourself.

While your shares are on loan, you cannot vote at shareholder meetings. If the company holds an AGM, an EGM, or puts a critical resolution to vote during the lending period, you have no vote. This is not a financial risk, but it is a governance risk for investors who care about shareholder participation. Manage this by not lending shares in companies with upcoming meetings, or by timing your lending contracts to expire before the record date.

Dividends, bonus shares, stock splits, and rights issues during the lending period require the borrower to compensate the lender through the clearing corporation. The mechanism generally works, but the timing of when you receive the compensation relative to the record date can create temporary gaps. Shut periods (during which SLBM activity is suspended around a corporate action date) manage most of this, but some complexity remains. Confirm the specific process with your broker before lending shares in any company with an imminent corporate action.

If you have lent shares and the company announces exceptional news causing the stock price to spike during the lending period, you cannot sell at the peak. Your shares are on loan. You benefit from the price increase when the shares are returned to you (because your ownership of the shares was never lost), but you cannot act on the price move during the contract. This is an opportunity cost, not a financial loss in the strict sense, but it is worth factoring in when deciding which stocks to lend and for how long.

SLBM lending fee income is classified as business income in India. If this is your first business income, it may change your ITR filing category. This is manageable with CA guidance but it is not costless in terms of compliance time and potentially professional fees.

India’s SLBM has been operational since 1997. Despite multiple market crises including the 2008 global financial crisis, the 2020 pandemic crash, and the 2022 correction, there is no recorded instance of a lender losing their shares due to borrower default within the exchange SLBM framework. The clearing corporation guarantee has held in every recorded case.

This does not mean the risk is zero in a theoretical extreme scenario, but the track record of the exchange SLBM structure in India is strong.

Frequently Asked Questions

Is SLBM safe for retail investors in India?

SLBM is one of the more structurally protected exchange mechanisms available to retail investors in India. The key protection is the clearing corporation guarantee: every SLBM transaction is cleared by either NSE Clearing Ltd (NCL) or Indian Clearing Corporation Ltd (ICCL), with 100 percent collateral required from the borrower before any transaction executes. Lenders do not deal directly with borrowers. The risks that remain are manageable: temporary loss of voting rights, corporate action timing, and business income tax classification.

What happens if the borrower does not return my shares?

If a borrower fails to return shares at contract expiry, the clearing corporation steps in and completes the settlement using its own resources and the collateral it holds from the borrower. You do not need to take any action. The clearing corporation’s guarantee means your shares (or their equivalent value) will be returned at expiry regardless of what the borrower does. This guarantee is the primary reason India’s SLBM is considered lower risk than bilateral securities lending markets in most other countries.

Is the 100 percent collateral requirement actually enforced?

Yes. The 100 percent collateral requirement is mandated by SEBI and enforced by the clearing corporations before any SLBM transaction is permitted to execute. The borrower must deposit the full collateral amount (in cash, bank guarantees, or eligible securities with haircuts) before the transaction is confirmed. The clearing corporation monitors this collateral daily through mark-to-market margining and calls for additional margin if the collateral value falls relative to the rising value of the lent shares.

Can I lose my shares permanently through SLBM?

No. Within the clearing corporation’s structure, lenders do not lose their shares permanently. The exchange SLBM framework guarantees that lent shares (or their equivalent market value) are returned to the lender at contract expiry. Ownership of the shares is never legally transferred to the borrower. The clearing corporation holds the shares as custodian during the lending period and returns them at settlement.

What are the real risks of SLBM for the lender?

The real risks for lenders are: no voting rights on lent shares during the contract period, potential complexity around corporate action compensation if the timing is tight, the opportunity cost of not being able to sell lent shares if prices spike unexpectedly during the lending period, and the business income tax classification of lending fee income (which may affect your ITR). These are genuine practical considerations, but none of them represent a risk of losing your shares or your capital.

Has any lender ever lost shares in India’s SLBM?

There is no recorded instance of a lender losing their shares due to borrower default within the exchange SLBM framework in India since the mechanism became operational in 1997. The clearing corporation guarantee has held through multiple market crises including the 2008 financial crisis and the 2020 market crash. While this historical record is not a guarantee of the future, it reflects the structural soundness of the exchange-clearing model.

Who regulates SLBM in India?

SLBM is regulated by the Securities and Exchange Board of India (SEBI) under its securities lending and borrowing circulars. The two clearing corporations, NSE Clearing Ltd (NCL) for NSE transactions and Indian Clearing Corporation Ltd (ICCL) for BSE transactions, are SEBI-regulated entities. Both must meet SEBI’s minimum net worth requirements, maintain risk management systems, and publish operational reports. SEBI has the authority to modify SLBM rules including eligible securities, margin requirements, and settlement mechanics.