Except that when the liquidity is most needed it disappears. Example the market fall on May 6th of this year. http://www.minyanville.com/businessmarkets/article

Except that when the liquidity is most needed it disappears. Example the market fall on May 6th of this year. http://www.minyanville.com/businessmarkets/articles/apple-microsoft-flash-crash-market-capitalization/6/7/2010/id/28621 http://www.minyanville.com/businessmarkets/articles/apple-mi...