The USDC values are available in real time on the dash board. Graphics are never updated unless you want some sort of ticker thing or a non stop movie. You should look at the date and time of the post. Stock quotes on many websites are usually delayed by at least 15 minutes too.
Comparing this to a stock quote is ripe. Stocks are derivatives of businesses that have revenue and viable models. They're also subject to robust oversight. This project has none of those features.
Dev - you're outing yourself. Never merit your own posts with a second account, really gives you away.