When variation margin attacks: Difference between revisions

There are lots of types of intermediary: those who comprise market infrastructure: [[Exchange|stock exchange]]s, [[clearing system]]s, securities depositories and so on; those who earn only a [[commission]] from their involvement, and take no [[principal]] risk<ref>I include here “[[quasi-agent]]” roles that are conducted on a [[riskless principal]], but (absent insolvency) are economically neutral: thse participants are remunerated by [[commission]] or fixed [[mark-up]] and do not have “[[Skin in the Game: Hidden Asymmetries in Daily Life - Book Review|skin in the game]]”.</ref>: [[Cash brokerage|cash broker]]<nowiki/>s, [[Investment manager|investment managers]], [[Clearing broker|clearer]]<nowiki/>s, [[Market-maker|market-makers]] and [[Intermediate broker|intermediate brokers]]; and those who ''do'' take principal risk, but only by lending to their customers, and don’t participate in the upside or downside<ref>Barring through “gap loss” where, due to portfolio losses, the customer is insolvent and cannot repay its loan.</ref> of the investments they are financing: [[Bank|banks]].  

==== Customers ====