Deribit to update Linear USDC perpetuals contract specs (Aug 18)
Deribit announced that it will change contract specifications for Linear USDC perpetuals on 18 August 2026 after 9:00 UTC. The update adjusts tick size, contract size, and minimum order size across on-screen order books and block trades.
The affected Linear USDC perpetuals include BTC-USDC, ETH-USDC, SOL-USDC, XRP-USDC, ADA-USDC, ALGO-USDC, AVAX-USDC, BCH-USDC, BNB-USDC, DOGE-USDC, DOT-USDC, HYPE-USDC, LINK-USDC, LTC-USDC, NEAR-USDC, PAXG-USDC, TRUMP-USDC, and TRX-USDC, and UNI-USDC.
Deribit said the change is aimed at improving tradability and generating more volume. Orders using non-conforming tick sizes, contract sizes, or minimum order sizes will be rejected after 18 August 2026. Because the new parameters are reductions and preserve the required multiples, orders that already conform to the old Linear USDC perpetuals specifications should automatically conform to the new ones.
Traders are still advised to update trading systems in time. Deribit clarified that existing positions will not be affected; only new orders must meet the revised contract specifications for Linear USDC perpetuals.
Neutral
This is an exchange microstructure update rather than a change to the underlying risk, leverage, or settlement mechanism. Since Deribit is reducing tick size/contract size/minimum order size, it can improve order granularity and potentially increase liquidity and volume for Linear USDC perpetuals. However, the article also states that existing positions are not affected and that “old-conforming” orders should remain valid under the new parameters, which limits market disruption.
In the short term, traders running automated systems may need to adjust to avoid rejected orders after 18 August 2026, which could cause localized activity shifts around the cutoff date. In the longer term, better tradability and tighter minimum increments can modestly support liquidity and spreads, but without a fundamental catalyst (e.g., margin model, funding methodology, or major product launch), the broader market impact is likely limited.
Similar specification revisions on derivatives venues historically tend to be neutral-to-slightly positive for liquidity on the affected contracts, but rarely move the overall crypto market direction.