Why is USDC always $1 dollar?

I've noticed that the value of USDC remains consistently at $1 dollar. Could you please explain why this is the case? I'm curious about the factors that contribute to this stability. As a professional in the field of cryptocurrency and finance, I understand that USDC is a stablecoin pegged to the US dollar. However, I'm interested in the specific mechanisms or strategies employed to maintain this one-to-one peg. Is it through a reserve of US dollars held by a trusted custodian? Or are there other techniques involved? Additionally, how does this stability benefit users and investors in the cryptocurrency market? Your insights would be greatly appreciated.