The boundary values are in fact contained in the contract symbol in a shorthand format. The bounds are always denominated in the same currency as the quoted prices. Follow the below formulas to calculate the boundary value for a given contract root symbol.
BB (Bounded Bitcoin)
Multiply the boundary values in the symbol by 1,000
BE (Bounded Ether)
Multiply the boundary values in the symbol by 100
BEB (Bounded ETH/BTC)
Divide the boundary values in the symbol by 100
[product][expiry] L[lower boundary]U[upper boundary]
L36 * 1,000 = 36,000
U60 * 1,000 = 60,000
L27 * 100 = 2,700
U53 * 100 = 5,300
L6 / 100 = .06
U11 /100 = .11
You can also find more information on our knowledge base article.
Alternatively, if you are familiar with coding and APIs you can use our security list endpoint to review the full contract specifications and currently available contracts: