What peg stress means
A stablecoin is a promise to hold an anchor, usually one dollar. A small gap can be ordinary plumbing. A large or persistent gap can mean the market is pricing doubt about redemption, backing, liquidity, or venue access.
Why supply matters
Circulating supply shows the size of the promise. A one-cent drift on a large stablecoin is a different event from the same drift on a small, thin coin. Bathymark reads price and circulation together.