That is actually a big oversight error on my side. It's obvious to me why they do it, as a Coin Price website they want external data to echo. Might be interesting actually to try and get an Upbit account, since it's based as "Upbit Singapore Pte. Ltd." in Singapore and they have an English website as well.
At the swap pool on polygon pHBD/USDC is ~0.985c$ right now.
Btw. I'm shocked and honored that you answered my comment, the Hive OG Blocktrades.
The Polygon pool hasn't varied by more than a penny or so in the past 12 hours. That's pretty representative of reality, IMO, since anyone can trade against it with known liquidity at any time.
Pretty cool actually, those Pools are useful.