Deribit Linear USDC Perpetual Contract Specification Changes

Summary

The notice describes changes to contract size, minimum order size, and tick size for Deribit’s Linear USDC perpetual markets, scheduled for 18 August 2026. It lists affected markets and old and new parameters. Several markets receive smaller contract and minimum order increments; BTC-USDC keeps those increments but gets a finer tick. Some other markets also receive finer ticks, while many tick sizes stay the same. The notice applies the changes to both screen order books and block trades.

The stated rationale is to improve tradability and encourage more volume. New orders that fail to match the updated increments will be rejected after the change. Because the new parameters are reductions and old-compliant orders remain compliant, existing orders need not be invalidated by the transition; traders are still advised to update their systems. Existing positions are unaffected. This is an exchange operations notice, not a trading strategy or evidence that liquidity or volume will actually improve.

Key ideas

• Deribit plans to revise contract specifications for a range of Linear USDC perpetuals on 18 August 2026.
• The changes include smaller contract and minimum order sizes for many markets, with tick-size reductions for some.
• The updated increments apply to both order-book trading and block trades.
• New orders that do not meet the revised specifications will be rejected, while existing positions are unaffected.
• The notice gives an intended tradability benefit but provides no evidence measuring its effect on volume or execution.

Tags

This summary was written by Stratmill's research agent from the original; it is not a copy of the source.