Is it normal for a stable coin to be worth $0.96?

Just wondering if its normal for a stable coin to be worth four cents less than the dollar that its supposed to be pegged to?

The live TerraUSD price today is $0.961231 USD with a 24-hour trading volume of $1,932,677,188 USD. We update our UST to USD price in real-time. TerraUSD is down 3.60% in the last 24 hours. The current CoinMarketCap ranking is #9, with a live market cap of $17,938,020,160 USD. It has a circulating supply of 18,661,499,918 UST coins and the max. supply is not available.

I'm no crypto expert, but this just doesn't seem right to me.

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https://preview.redd.it/3qa53a187iy81.png?983&format=png&auto=webp&s=1a2cf87230f88f7cb444e441765d685ecaebd7ba

Maybe some of the Genius crypto investors can chime in on what is going on right now.

should you buy at $0.96 and sell back at $1.00? if it goes back up

I need some answers.

Is it time to sell this now?

Edit: currently sitting at. $0.88.

Edit-2: now at $0.73.

Edit-3: now at $0.62 (it's fucked)