What Are Stablecoins and How Do They Work?
In this article, you will learn the 101 of this
crypto token class, how they work, how to buy them, and their pros and cons.
Stablecoins
are cryptocurrencies whose value is pegged to a fiat currency like the US
dollar, other cryptocurrencies, or a commodity like oil or gold, resulting in a
relatively stable price.
Key
takeaways:
- Designed to maintain price
stability, stablecoins bridge the gap between fiat currencies and
cryptocurrencies
- They are pegged to
traditional assets such as fiat currencies or gold, making them a less
volatile alternative than typical cryptocurrencies
- Promising faster
transactions and lower costs, stablecoins are an attractive alternative to
traditional banking
- They allow traders to keep
their money in the crypto ecosystem while storing them in a stable asset
between trades or during volatile periods
Stablecoins are cryptocurrencies that have
their price pegged to a specific asset – which is most often, but not always,
the United States dollar.
But what makes this
type of cryptocurrency so special compared to classic crypto tokens?
You
are probably aware of the drastic ups and downs of valuation of some
traditional cryptocurrencies within a short period of time. Recalling the historical price of Bitcoin in February of
2021, it nearly doubled in price from around USD 32,000 to USD 58,000, but then
dropped dramatically in May back to around USD 34,000.
Such fluctuations,
or so-called ‘short-term volatility’, make these cryptocurrencies unfavourable
for everyday use by the public.
Serving
the purpose of maintaining the value and purchasing power, pegging with assets
can make stablecoins more resilient from market fluctuations in cryptocurrency
space. For instance, one of the most popular stablecoins – Tether (USDT) – is equal to USD 1 at
nearly all times. Other popular stablecoins include USD Coin (USDC) and
TerraUSD (UST).
Unlike
other cryptocurrencies, not only does a stablecoin have significantly lower
volatility due to its asset-backed nature, it also plays a bridging role in the
world of cryptocurrencies and fiat currencies to facilitate daily commercial
transactions and exchange.
Benefits of stablecoins include:
- Lower
volatility
- Lower-cost
transactions
- Safe option to
keep assets in the crypto ecosystem
- Real-time
payments
These
benefits make stablecoins more competitive than other crypto tokens as they
touch on consumer and business painpoints of Bitcoin and other tokens that
offer neither stability nor scalability to real-time transactions.
Today,
the total market
capitalisation of all the stablecoins in the world has reached
more than USD 150 billion. They command more than half of the global crypto
trade volume, making them an important asset in the DeFi ecosystem.
There are four types of stablecoins:
- Fiat
collateralised stablecoins (the most popular)
- Crypto-backed
stablecoins
- Commodity-backed
stablecoins
- Non-collateralised
stablecoins
The
primary use for a stablecoin is facilitating trades on crypto exchanges.
Instead of buying Bitcoin directly with fiat currency, like the US dollar,
traders often exchange fiat for a stablecoin – and then execute a trade with
the stablecoin for another cryptocurrency like bitcoin or ether.
Stablecoins
can also act as payment alternatives. By utilising stablecoins, businesses can
accept payments at a very low cost and governments could run conditional cash
transfer programs easier than before. Due to its fast as
thunder transaction, stablecoins can also be used to distribute monetary aid to
beneficiaries worldwide.
Another
use for stablecoins is to send funds across international borders. Sol Digital,
a stablecoin that’s pegged to the sol, Peru’s national currency, launched on
the Stellar blockchain in September. It can be exchanged between individuals in
different countries without third-party fees for cross-border money transfers.
The pegging of stablecoins is near-perfectly
one-to-one through various methods including:
Reserving of pegged assets (e.g. USDC, USDT)
It refers to a fully collateralised system
backed by the pegged asset, where arbitrageurs are incentivised by helping to
stabilise the price. When the price of the stablecoin is lower than the pegged
asset, the arbitrageurs can buy cheaper stablecoin, which can then be redeemed
for USD 1 each. Similarly, when the price is higher than the pegged asset, they
can sell the coins to gain profits.
Dual coins
Two coins exist in these kinds of systems,
where one is the pegged coin while a secondary coin is used to absorb the
volatility of the pegged coin.
Algorithmic coins
Instead of using any reserve or being backed
by assets, these kinds of stablecoins use a fully algorithmic approach to
adjust the supply of the stablecoin in response to price fluctuations. However,
a stable algorithmic coin only exists in theory. None currently exist in the
market.
Leveraged loans (e.g. DAI)
This kind of stablecoin is backed by an over-collateralised system. The
most successful example is DAI, in which the stablecoin is backed by PETH, and
its value is correlated to Ethereum. Since the collaterals are more volatile in
terms of price, users need to have more than USD $1.5 worth of PETH to borrow
USD $1 of DAI. If the collateral price falls sharply, the debt position will be
liquidated, and the remaining amount of collateral will be returned to the user.
A common
concern over stablecoins is whether they are less secure than US regulated bank
accounts or money market funds. Investors can mitigate this in two ways: the
first is the classic crypto advice of DYOR – do your own research – before
investing. Check the issuing entity, their history and past projects, in detail
before trusting them with your funds. Further, investors can easily move into
other stablecoins or even other cryptocurrencies if investors lose confidence
in a coin as volatility is not an issue. However, based on its nature and
mechanism, the risk of failure or volatility is near zero for established
stable coins if they are sufficiently pegged by the issuers.
Currently,
stablecoins regulations are still up to discussion in most jurisdictions. For
example in the US, the President’s Working Group on Financial Markets, composed
of the heads of the US Treasury Department, Federal Reserve, SEC, and CFTC, has
released a report in Nov 2021. It raises the risks related to lack
of transparency, market integrity, and investor protection. Legislation to
regulate stablecoin issuers is proposed but yet to be enacted.
With the growing acceptance of cryptocurrencies and the steadiness that
stablecoins bring to the DeFi, their integral role in the ecosystem, providing
ease of trading crypto, staking, and lending is cemented. While legislation of
some countries may place additional restrictions and requirements on
stablecoins issuers, it is also anticipated that financial regulatory agencies
and related stakeholders will continue to work closely on ways to foster
financial innovation while minimising associated risks.