Algorithmic Stablecoins: Understanding What Are They and How Do They Work

Algorithmic stablecoins are digital currencies that aim to combat the renowned volatility of the crypto market through complex algorithms rather than relying on physical reserves like their traditional counterparts. Let's delve into algorithmic stablecoins and explore their inner workings, their available types, and their potential advantages and drawbacks.

What is an Algorithmic Stablecoin?

Algorithmic stablecoins represent a relatively new type of digital currency that leverage software algorithms to maintain their value. Unlike their traditional counterparts, which are backed by fiat currency reserves or other tangible assets, algorithmic stablecoins operate without the need for physical reserves. Instead, they rely on the principles of supply and demand, with the algorithm automatically adjusting the supply of the stablecoin in response to changes in its price.

This approach allows algorithmic stablecoins to maintain a stable value, typically pegged to a traditional fiat currency like the US dollar, without needing a central authority or physical collateral.

How do Algorithmic Stablecoins Work?

The primary goal of an algorithmic stablecoin is to maintain a stable value, typically pegged to a traditional fiat currency like the US dollar. To achieve this, the algorithm automatically adjusts the supply of the stablecoin in response to changes in its price. If the stablecoin price rises above the pegged value, the algorithm increases the supply to reverse the price. On the other hand, if the price falls below the pegged value, the algorithm decreases the supply to push the price back up.

How are Algorithmic Stablecoins Pegged?

Algorithmic stablecoins dynamically maintain their peg through algorithms. This involves the algorithm automatically adjusting the supply of the stablecoin in response to changes in its price. The goal is to return the stablecoin's price to its pegged value, whether $1 or some other predetermined value. 

This dynamic adjustment of supply helps to maintain the price stability of the stablecoin, ensuring that it remains close to its pegged value regardless of market conditions.

Types of Algorithmic Stablecoins

There are three main types of algorithmic stablecoins, each with its unique approach to maintaining price stability:

  • Rebasing Algorithms: These algorithmic stablecoins aim to maintain price stability by adjusting the supply of stablecoins according to demand. If the demand for the stablecoin is high and its value exceeds $1, the supply will increase to return the price to $1. Conversely, if the demand is low and the value falls below $1, the supply will decrease to raise the price back to $1.

An example of a rebasing algorithmic stablecoin is Ampleforth ($AMPL).

  • Seigniorage Algorithms: These algorithmic stablecoins work with two or more assets. The stablecoin aims to be pegged at $1, and a second token represents a share or seigniorage ownership. This second token typically has a price set by the free market and is used to maintain the stable peg of the first token by using a mint-and-burn algorithm.

Terra Luna's $UST was an example of a seigniorage algorithmic stablecoin.

  • Fractional Algorithms: These types of algorithmic stablecoins use a combination of collateral assets like USDC combined with an algorithmic reserve. The algorithmic reserve is not asset-based but utilizes a balancing mechanism with mint and burn.

$Frax is an example of a fractional algorithmic stablecoin.

Pros and Cons of Algorithmic Stablecoins

Algorithmic stablecoins offer several advantages, including decentralization, capital efficiency, etc.


  • Decentralization: Algorithmic stablecoins operate without a central authority, making them fully decentralized. This means that they are not subject to the control of any government or financial institution.
  • Capital Efficiency: Unlike traditional stablecoins, which require physical reserves to back their value, algorithmic stablecoins operate without such reserves. This makes them more capital efficient, as they can maintain their pegged value without needing large amounts of collateral.
  • High Trust: Since Algorithmic stablecoins are managed through algorithms and don't depend on physical collateral, it allows more trust between users and developers.


  • Potential for Loss of Peg Stability: One of the main risks associated with algorithmic stablecoins is the potential for loss of peg stability. If the algorithm fails to adjust the supply in response to changes in demand accurately, the stablecoin could deviate from its pegged value, leading to instability.
  • Regulatory and Compliance Issues: As a relatively new and innovative digital currency, algorithmic stablecoins face regulatory and compliance issues. These include potential restrictions on their use and the need for compliance with various financial regulations.
  • Lack of Physical Reserves: Unlike traditional stablecoins, backed by physical reserves, algorithmic stablecoins operate without such reserves. This lack of physical backing can increase risk, as the stablecoin's value depends entirely on the algorithm's performance.


Algorithmic stablecoins represent an innovative solution to the volatility problem in the cryptocurrency market. By leveraging complex algorithms, these digital currencies aim to maintain a stable value without the need for physical reserves. However, like all investments, they come with risks and should be cautiously approached. As the regulatory landscape continues to evolve around the globe, the future of algorithmic stablecoins remains uncertain. Despite these challenges, the innovative approach of algorithmic stablecoins offers a fascinating glimpse into the potential future of digital currencies.

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