Idle margin is a real cost on every exchange, and Grvt is going straight at it. In its announcement, @grvt_io shared a trader survey: six in ten respondents had at least a quarter of their platform capital sitting idle, and many moved funds elsewhere for yields of 8 percent or more. It is Grvt's own survey, so I read it as direction and not proof. Yield as Margin is the answer: eligible Earn balances usable as trading margin while still accruing yield, subject to product terms and risk parameters. It is planned for November, after Grvt Earn arrives at the end of October. This is the feature I am most excited about, because it turns idle collateral into working capital. The up to 11 percent figure is a target and not a guarantee, and it depends on the underlying assets, so I will be reading the risk parameters closely when they come out. Would you trade with margin that earns yield?