Contract Specifications

What Are Perpetuals?

TxFlow perpetuals are derivative products with no expiration date. They maintain price convergence with the underlying spot asset through funding payments rather than settlement dates. For details on the funding mechanism, see Funding.

Contract Specifications

TxFlow maintains a streamlined specification model with minimal contract-specific restrictions and no address-level limitations.

Instrument Type	Linear perpetual
Contract Size	1 unit of underlying spot asset
Underlying Asset	TxFlow oracle index of spot asset
Initial Margin Fraction	1 / (user-selected leverage)
Mark Price	See Mark Price and Oracle Price
Delivery / Expiration	N/A (hourly funding payments)
Account Type	Cross-margin or isolated margin (per wallet)
Position and Order Limit	See Position and Order Limit