Browse Investing

Rebate Rate: The Interest Rate in Short Sale Transactions

Rebate Rate refers to the interest rate paid by the lender to the borrower in a short sale transaction, often influenced by the security's status on the Hard-to-Borrow (HTB) list.

The Rebate Rate is the interest rate that a lender pays to a borrower in a short sale transaction. This rate is particularly important in the context of borrowing securities, and it is often influenced by the security’s status on the Hard-to-Borrow (HTB) list.

Definition

In a short sale transaction, an investor borrows securities, typically through a broker, with the expectation that the security’s price will decline. The borrowed securities are then sold in the market. The investor later buys back the securities to return them to the lender.

Rebate Rate Characteristics

  • Paid by Lender to Borrower: Unlike traditional loans where the borrower pays interest to the lender, in short sale transactions, it’s the lender who pays the interest to the borrower.
  • Influenced by HTB Status: The rebate rate is significantly affected by whether the security is classified as Hard-to-Borrow (HTB). If a security is on the HTB list, it indicates a shortage in its supply for short selling, typically resulting in a lower rebate rate for the borrower.

Formula

$$ \text{Effective Borrowing Cost} = \text{Short Sale Proceeds} \times (1 + \text{Benchmark Interest Rate}) - \text{Rebate Rate} $$

Where the benchmark interest rate is typically the Federal Funds Rate.

General Collateral (GC) Rate

The GC rate applies to securities that are generally easy to borrow. The rebate rate for these securities is higher since they are readily available for borrowing.

Special Rate

The special rate is lower than the GC rate and applies to securities that are difficult to borrow. These are usually on the HTB list.

Considerations

  • Market Conditions: Rebate rates can fluctuate based on market conditions and demand for borrowing specific securities.
  • Broker Policies: Different brokers may have varying policies and rates, influencing the rebate rate offered in short sale transactions.
  • Short Selling: The practice of selling borrowed securities with an expectation to buy them back at a lower price.

  • Hard-to-Borrow (HTB) List: A list of securities that are scarce and difficult to borrow for short selling.

  • Benchmark Interest Rate: The standard interest rate used for comparison in financial calculations, like the Federal Funds Rate.

FAQs

What influences the rebate rate?

Factors include market demand, the security’s status on the HTB list, and broker policies.

How does the HTB list impact the rebate rate?

Securities on the HTB list generally have lower rebate rates due to their limited availability for borrowing.

Is the rebate rate always paid by the lender?

Yes, in short sale transactions, the lender pays the rebate rate to the borrower.
Revised on Monday, May 18, 2026