# First expansion / contraction

Assuming UAC is priced at above (1+ε) USDT, where ε is 0.05 at launch, then expansion occurs. If UAC is priced at below 1USDT, then contraction occurs. The first measurement of pricing occurs on:&#x20;

Issue 6 of UAC Proposal：Starting period: 10:00, January 17

Where 24 hour TWAP will be used to calculate UAC
