Stablecoins Explained: The Bridge Between Crypto and Cash
Published 2026-03-26
A stablecoin is a cryptocurrency engineered to hold a stable value, most commonly pegged 1:1 to the US dollar, in contrast to the significant price swings seen in Bitcoin, Ethereum, and other crypto assets. They exist specifically to give crypto users a way to hold value on-chain without exposure to market volatility.
Different stablecoins maintain their peg through different mechanisms: some are backed by cash and cash-equivalent reserves held by the issuer, others are over-collateralized by other crypto assets locked in smart contracts, and a smaller category has attempted algorithmic mechanisms without direct asset backing — a category that has seen high-profile failures when the peg broke under stress.
For long-term investors, stablecoins can serve a similar function to a cash buffer in a traditional portfolio: a place to hold planned near-term withdrawal amounts without needing to sell volatile assets during a downturn, which directly reduces exposure to the sequence-of-returns risk discussed elsewhere on this site.
It's worth understanding that 'stable' does not mean 'risk-free.' Stablecoins carry their own risks, including counterparty risk (whether the issuer actually holds the reserves it claims), regulatory risk, and — in the case of algorithmic designs — a history of peg failures that resulted in significant investor losses.
Frequently Asked Questions
Are stablecoins the same as a bank account?
No. Stablecoins are not typically covered by deposit insurance the way a traditional bank account is, and their value depends on the issuer's ability to maintain reserves and honor redemptions.
Can I use stablecoins in the Crypto Runway Calculator?
The calculator currently models volatile crypto allocations (Bitcoin, Ethereum, altcoins). A portion held in stablecoins would behave more like a cash reserve and isn't separately modeled in the current simulation.