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Ethereum Classic Blog

Ethereum Classic Course: 27. What Are Algorithmic Stablecoins?

Donald McIntyre
Education, Series

You can listen to or watch this video here:


In the previous class of the Ethereum Classic (ETC) course we explained what are stablecoins, convertible stablecoins in particular, how they work, and their risks.

In this class we will explain what are algorithmic stablecoins, starting with a description of what are stablecoins in general, the two categories that exist, what are algorithmic stablecoins in particular, showing how they work, and, finally, their risks.

In the next few classes we will cover these other topics:

  • Class 28: What Are Privacy Coins?
  • Class 29: What Are Decentralized Finance (DeFi) Coins?
  • Class 30: What Are File Storage Coins?

What Are Stablecoins?

Stablecoins are cryptocurrencies that seek to have a stable value, usually mimicking the value of a fiat currency like the US dollar, that are pegged or collateralized by assets that may be the same fiat currencies they seek to mimic or other cryptocurrencies that serve as guarantee reserves to back their value.

The most popular stablecoins are:

  • USDT - Issued by Tether Limited Inc.
  • USDC - Issued by Center, a consortium formed by Circle and Coinbase.
  • BUSD - Issued by Binance.
  • DAI - Issued by Maker DAO.

Stablecoins are either convertible or algorithmic. In this class we will explain the latter.

What Are Algorithmic Stablecoins?

Algorithmic stablecoins are backed by other crypto assets.
Algorithmic stablecoins are backed by other crypto assets.

Algorithmic stablecoins are one of the two general categories of stablecoins. The most popular and the main example of an algorithmic stablecoin is DAI.

These cryptocurrencies maintain a peg of one-to-one with a fiat currency that they seek to mimic.

Algorithmic stablecoins are guaranteed by other cryptocurrencies, such as Bitcoin, Ethereum, USDC, etc., and not by external reserves of the fiat currencies they seek to mimic as do convertible stablecoins.

The algorithmic stablecoins themselves are ERC-20 tokens inside blockchains such as ETC.

Size of the Stablecoin Sector

Stablecoin sector. Updated on September 5 2023.
Stablecoin sector. Updated on September 5 2023.

As may be seen in the chart above from CoinMarketCap, which was updated on September 5th of 2023, the top 9 stablecoins in the market have an aggregate market capitalization of more than $121 billion.

Of the group, the most used are:

  • USDT - Issued by Tether Limited Inc - which has a market capitalization of more than $82 billion, and is the largest player in the convertible stablecoin sector of the blockchain indsutry.
  • USDC - Issued by Center, a consortium founded by Circle and Coinbase - which has a market capitalization of more than $25 billion.
  • BUSD - Issued by Binance - with a market capitalization of 2.8 billion.
  • DAI - Issued by Maker DAO which is the largest of the algorithmic stablecoins, with a market capitalization of $5.3 billion.

The new entrant in the top convertible stablecoins since we wrote this article in June of 2023 is TrueUSD, which was launched by TrustToken, and has a market capitalization of $3.2 billion.

How do Algorithmic Stablecoins Work?

  1. Anyone with eligible crypto assets inside a programmable blockchain may send them to an algorithmic stablecoin vault smart contract to generate the stablecoin tokens.

  2. When the algorithmic stablecoin vault smart contract receives crypto assets, then it creates (mints) the stablecoin tokens in a proportion according to a set margin. For example, someone may send $300 in crypto assets and receive $100 in the stablecoins or 100 stablecoins.

  3. Once the algorithmic stablecoins are issued, they may be used for payments, to trade for other tokens, NFTs, or crypto assets, or just to hold them as a stablecoin.

  4. The way the value of the algorithmic stablecoin is kept 1-to-1 to the fiat currency is that if it trades above $1, then people will convert more crypto assets into the stablecoin and lower its price. The same happens in reverse. If the stablecoin trades bellow $1, then people will buy it and convert it back into crypto assets.

  5. When the algorithmic stablecoin vault smart contract receives the stablecoin tokens from a user, it redeems them and sends back the corresponding collateral. Users pay a fee when redeeming algorithmic stablecoins.

What Are the Risks of Algorithmic Stablecoins?

Although the name of these stablecoins implies that their mechanics are algorithmic or automated, the truth is that all the parameters and ratios to maintain the stability of the algorithmic stablecoins are decided by a DAO of who’s token owners vote on all the variables based on their market analysis and subjective opinions.

This means that if the aggregate collateral crypto assets that back the algorithmic stablecoins crash or fail beyond the estimates of the voting members, then the stablecoins may lose their parity with their corresponding fiat currencies.

Algorithmic stablecoins are very complex systems and require many parts to be carefully calibrated to function properly.


Thank you for reading this article!

To learn more about ETC please go to: https://ethereumclassic.org

This page exists thanks in part to the following contributors:


DonaldMcIntyre
DonaldMcIntyre
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