Code is unaudited. So before apeing in, maybe read a few notes below.
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Contango's expirables are derivative instruments to buy or sell assets at a specific price and date in the future.
Read how they differ from futures and forwards: bit.ly/3UThLR4
Also, remember @FTX_Official? If you are looking for a DeFi alternative, we got you fam.
@FTX_Official We have a debt ceiling capped at 10k per pair, per currency, on the underlying fixed-rate market (@yield) so that you degens are not gonna degen too much. 🐒
Try the beta with small amounts & provide feedback on Discord or through this survey: bit.ly/3VQk4Wx
Basically, every time you open a position on Contango, you post some margin (collateral) and the missing capital is borrowed on the underlying fixed-rate market. That's your debt.
@FTX_Official@yield On Contango right now you can go long/short on:
1️⃣ ETHUSDC
2️⃣ ETHDAI
3️⃣ DAIUSDC
And you can choose between 2 maturities:
📆 December 22
📆 March 23
@FTX_Official@yield So, for instance, on the ETH/USDC pair, Contango can only borrow as much as 10k of ETH and 10k of USDC on @yield (so 20k per pair).
Since 3 pairs and 2 maturities are available, the total debt ceiling is:
Yes, we’re not charging you anything to trade on Contango (you’re welcome).
@FTX_Official@yield@NotionalFinance@Uniswap We'll soon launch on L1. We're working closely with @yield to deploy these new contracts. This way you'll have an expirable quoted on 2 different chains, arbitrum and mainnet. Price differences = arb opportunity.
In a few days we’ll launch a public beta version of Contango on @arbitrum.
For the first time in history you'll be able to trade expirable contracts fully on-chain. No order books. No liquidity pools. Pure #DeFi style. 💃
Here's a sneak peek into our interface.
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@arbitrum Opening a new position is as simple as setting the order size (the quantity) and your collateral (margin). Contango provides you with a detailed recap before submitting your trade.
Notice how fees are set to 0.
@arbitrum Once you have opened a position, you can edit it by adding/removing collateral as well as modifying the overall position size, all in one single atomic transaction. So you can save on gas fees (you're welcome).
A short thread about how we came up with the current design for Contango and how it is set to become a DeFi primitive.
First, why has no one built expirable futures on-chain before? A few reasons:
1) With an AMM design you take on unlimited risk on the protocol side - any perp instead settles on a regular basis via funding fees. Also, with an AMM model you need to attract liquidity to your pools
2) Order-book model, you say? Well, like with an AMM you need liquidity, and market makers too. And above all, it won't be fully on-chain.
How did we solve this? By tapping into the liquidity of fixed-rate markets, so we don't need LPs or market makers and can be 100% on-chain.
@KamelAouane: "The next wave of DeFi will see the growth of fixed-rate markets. It's a $130T economy in TradFi but it's still in its infancy in DeFi. If we're serious about eating TradFi, fixed rates are a building block that we must have."
@element_fi@KamelAouane@WindraThio: "Lower risk has become a priority for users. Fixed rates provide easier-to-price products that can be useful for traditional institutions too."
We've written an easy-to-digest article 👉 bit.ly/3P0DpRm
Here's the TL;DR 👇
1/ How Contango works
Contango has no liquidity pool, no order book. It simply uses the liquidity of underlying fixed-rate protocols. Futures are priced by replicating their cash flows on spot and fixed-rate markets.
We basically created a derivative market out of thin air 😎
2/ The theory
This formula provides the theoretical model for Contango: it tells us that a futures contract has a price P that depends on the spot price (S), the interest rates (r1 & r2) of the quote and base currencies respectively, and the time to maturity (T).
Contango is a non-custodial DeFi exchange offering expirable futures without order books or liquidity pools. When a trader opens a position, the protocol borrows on the fixed-rate market, swaps on the spot market, then lends back on the fixed-rate market.