The peg depends on a mechanism
Stablecoins use different designs. Some are backed by cash and short-term instruments. Some are overcollateralized by crypto assets. Some use algorithmic or synthetic mechanisms. The word stablecoin does not describe one risk model.
Readers should ask what keeps the price near one dollar. Is there redeemable collateral? Who holds it? How often is it reported? What happens if demand for redemption spikes?
Redemption access is not always equal
A stablecoin can trade near a dollar because large market makers can redeem directly while ordinary users rely on exchanges or DEX pools. During stress, the difference matters. If secondary-market liquidity thins, direct redemption access may decide who exits cleanly.
Review minimum redemption sizes, supported jurisdictions, fees, delays, banking partners, and whether redemptions can be paused. Those terms are part of the financial product, even if most users never read them.
Liquidity is the visible stress gauge
A stablecoin may have a large market cap but uneven liquidity across chains and venues. The specific pool or exchange a reader uses may be much thinner than the headline supply suggests.
During a depeg, arbitrage can help restore price only if participants trust the redemption path and can move capital. Bridge delays, chain congestion, or issuer uncertainty can weaken that process.
Chain exposure adds another layer
Stablecoins often circulate on many chains. Some versions are native issuer-minted assets; others are bridged representations. A problem with a bridge, chain, or wrapper can affect one version without changing the issuer's core reserves.
Readers should verify token contracts and routes before moving large balances. The stablecoin ticker may look the same while the technical risk differs by chain.