My question is: Does a stable coin have a set total coin supply? Or does it have to be able to create and destroy based on the demand?
The image in my head goes like this:
A stable coin pegged to a currency started off its business saying it would have a coin supply of $5 billion. Everything works well until one day, the crypto market goes south and everyone rush to buy the stable coin. The coin is unable to sell to everyone because the demand for the coin is too high, so some people are left out.
Please correct me my misconception
The problem with a stable coin is that there has to be a bank or reserve of the asset the coin is pegged to so that people can redeem the coin for the asset. The ability to redeem it for a set value of the other asset is what gives the coin a stable value. If some coin has a $5 billion valuation backed by dollars, there has to be $5 billion dollars in reserve to exchange for anyone who wants to trade out. The first problem is amassing the enough of the asset to peg the coin to it. Also, pegging the coin to dollars should theoretically limit the upside of buying the coin, even if demand spikes, because the most you are guaranteed to get out of owning the coin is the same amount of dollars in the pegged value, so it's it entirely seems pointless to try and trade a pegged coin for profit.