Cryptocurrencies are notorious for their mood swings. Bitcoin hit nearly $20,000 in 2017, crashed by more than half, then surged past $63,000 in March 2021 before settling back around $30,000 by July. This volatility is a nightmare for anyone trying to use crypto as actual currency. Who wants to get paid in a currency that might lose 10% of its value overnight?
Enter the stablecoin.
These are crypto tokens pegged to traditional fiat currencies like the US dollar, the Euro, or the Japanese Yen. Examples include Tether’s USDT and MakerDAO’s DAI. The goal is simple: remove the uncertainty.
How Tether’s USDT Maintains Value
Launched in 2014 by the Hong Kong-based firm Tether, USDT promised a rigid formula: 1 USDT equals 1 US dollar. Tether guaranteed this parity would hold regardless of market chaos. But how does it actually work?
Tether claims that for every USDT in circulation, there is an equivalent reserve of cash or cash-equivalents. The reality has been messier. In September 2020, there were roughly $14.4 billion USDT in circulation. Tether stated its reserves were $14.6 billion.
That claim didn’t sit well with regulators. The New York Attorney General accused Tether of lying about its reserves being fully backed by US dollars. The result? A $18.5 million fine in February 2021 to settle the lawsuit.
Despite the legal turbulence, USDT remains a titan. It is consistently the third-largest cryptocurrency by market capitalization. The market trusts it enough to use it as a safe haven during crypto downturns. It allows traders to exit volatile positions into a dollar-pegged asset without moving money through traditional banks.
Beyond Tether: The Rise of Competitors
Tether wasn’t alone for long. The success of USDT spawned a wave of competitors. Each tries to solve the same problem: stability in a chaotic market.
Key players in the stablecoin space include:
- USDC by Coinbase
- TUSD (True USD) by TrustToken
- PAX (Paxos Standard)
- GUSD by Gemini
- BUSD by Binance
- DAI by MakerDAO
Most of these are fiat-backed. Some even use commodities like gold, platinum, silver, real estate, or even oil as collateral.
DAI takes a different approach. It is decentralized. Instead of holding physical dollars in a bank vault, DAI relies on Ethereum (ETH). Users lock up ETH as collateral to mint DAI. The protocol requires overcollateralization. Specifically, to issue $1 worth of DAI, MakerDAO locks up $1.50 worth of ETH. This buffer protects the system. Even if ETH’s price swings wildly, the excess collateral ensures DAI can still be redeemed.
The Long-Term Threat: CBDCs
The current stablecoin ecosystem faces a potential extinction event. It isn’t coming from hackers or competitors. It is coming from governments.
Central banks worldwide, including the European Central Bank (ECB), are developing Central Bank Digital Currencies (CBDCs). Imagine a digital euro directly guaranteed by the ECB. This would be a state-backed, risk-free digital alternative to private crypto.
If governments offer a superior, regulated digital currency, private stablecoins like USDT or DAI might become obsolete. The window for these digital assets to establish themselves is closing as traditional finance goes digital.
