A Deep Discount Bond (DDB) is a type of bond issued at a significant discount to its face value. Instead of paying regular interest (coupons), the bondholder receives the full face value at maturity. The difference between the purchase price and the face value represents the investor’s return.

Key Features:

1. Discounted Issuance: Issued well below face value (e.g., issued at ₹500 for a face value of ₹1,000).
2. Zero or Minimal Coupons: Primarily accrues returns through capital appreciation rather than periodic interest payments.
3. Long-Term Investment: Typically has a long maturity period, making it suitable for investors seeking growth over time.
4. Risk and Reward: Lower risk than equities but higher risk than traditional coupon-paying bonds due to price volatility.

Suppose a company issues a bond with a face value of ₹1,00,000 and a maturity of 10 years, but it is sold at a much lower price.

You buy this bond today for ₹30,000. The bond does not pay any annual interest. There are no regular cash flows during the 10-year period.

At the end of 10 years, the company pays you the full face value of ₹1,00,000. Your return comes entirely from the difference between what you paid and what you receive at maturity.

If the company remains financially strong and repays on time, your investment grows steadily over the years, even though you do not see periodic income.

This structure suits investors who do not need regular cash flow and are comfortable locking in money for a long period in exchange for a higher lump-sum payout at maturity.

Deep discount bonds have been used globally since the mid-20th century as an alternative to traditional fixed-income securities. Their appeal grew in markets like the U.S. with the introduction of zero-coupon bonds in the 1960s and India with long-term infrastructure bonds issued in the 1990s. These instruments provide issuers with upfront funds and investors with high growth potential over time.