The UNIT token is not a stablecoin, since its intrinsic value is not directly linked to any asset, but depends on the composition and total value of the basket of underlying assets, which will fluctuate. This fluctuation is driven, among other factors, by the number of UNIT tokens issued and the dynamics of changes in the value of each of the underlying assets.
In principle, market value of the UNIT shall be determined by supply and demand only. Beyond the initial period, the market value will oscillate about the value of the underlying basket of assets, driven by supply and demand.
The main difference between UNIT token and a stablecoin is that the UNIT does not have the reverse conversion mechanism (and a key attribute of a stablecoin is the no-arbitrage mechanism for reverse conversion of a stablecoin into the underlying resource that was used to create one).