In order to prevent the market risk from being excessively concentrated on a small number of traders and risk of market manipulation, Bybit limits the ratio of the number of the open position of each individual user relative to the open interest of the specific contracts.
Individual or multiple accounts belonging to the same user, the sum of positions of any specific contract with the same direction must not exceed a certain percentage of the contract's open interest. Otherwise, Bybit may cancel any orders that may increase the position size.
The restricted percentage of each contract:
BTCUSD : 7.5%
ETHUSD : 10%
EOSUSD : 10%
XRPUSD : 10%