Which coin is completely unaffected by the changes?

A stablecoin, such as Tether (USDT) or USD Coin (USDC), is typically designed to remain unaffected by market volatility, as it is pegged to a stable asset like the US dollar. These coins aim to maintain a 1:1 value ratio with their respective Fiat currency, providing stability in value regardless of broader cryptocurrency market fluctuations. However, external factors like regulatory changes or issuer practices can still influence their stability.