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On-Chain Orderbook System

Decoding Key Concepts
Secured Finance's Loan Market Platform incorporates an on-chain orderbook system, a pioneering application in the DeFi space. This system facilitates the trading of Zero-Coupon bonds with a specific maturity date. To ensure clarity, we've defined some key terms used on our platform:

What is an Orderbook?

It is an electronic list of buy and sell orders for Zero-Coupon bonds, organized by price level. It enhances transparency by providing visualized information on price, availability, depth of trade, and more.

What is a Borrow Order?

It refers to an order to borrow crypto assets, equivalent to selling a bond on our platform. After pledging sufficient collateral, you can place a sell order, selling a Zero-Coupon bond and receiving the equivalent cash upfront. You then owe the obligation to repay the money with interest at maturity.

What is a Lend Order?

This is an order to lend, equivalent to buying a bond. You buy a Zero-Coupon bond at a discount, which will be redeemable at par at expiration.
A Zero-Coupon bond is a debt security that doesn't pay interest (coupons) but is traded at a deep discount, rendering profit at maturity when the bond is redeemed for its full face value. On our platform, bonds will be redeemable at 100.
Why is On-Chain Orderbook so difficult?
The on-chain Orderbook system is often perceived as inefficient due to high gas costs. As a result, many DeFi projects rely on the liquidity pool system (LP) which is a great financial innovation for gathering liquidity. However, the interest rate provided by the pool lacks composability and transparency. Secured Finance has successfully deployed an on-chain orderbook system using the 'lazy evaluation' method, which significantly reduces gas costs. Learn more details at 'Full On-Chain Orderbook system' at technical overview.