Cross margining

This one is not written up yet

The definition above is the short version. A full explanation — how it works, a worked example and the exam traps — is still being written. In the meantime the chapter below covers it in context.

Written up from the same chapter

• Base Minimum CapitalThe deposit every trading member must keep with the exchange purely to meet contingencies — it earns the member no trading exposure at all, and its size depends on what kind of trading the member does.
• Clearing corporationThe entity that steps between every buyer and seller in the derivatives segment by novation, becoming the counterparty to both sides and guaranteeing that the trade settles.
• Daily Settlement PriceThe price at which every open futures position is marked and reset at the end of each day — the last 30 minutes' volume weighted average price of that contract, computed separately for each expiry.
• Extreme Loss MarginA flat 3.5 per cent margin collected on cash-market positions to cover losses falling outside what the VaR margin is designed to capture.
• Final Settlement PriceThe price at which a commodity derivative is finally settled at expiry — a simple average of the polled spot prices of the expiry day and the two days before it.
• Impact costThe percentage by which a market order's actual execution price degrades against the ideal price — the mid-point of the best bid and the best offer — and so the real cost of trading in size.