At Reuters, Felix Salmon has, predictably, the best take on the just-announced $8.2 deal for IntercontinentalExchange Inc. (ICE) to buy the New York Stock Exchange. Yes, that New York Stock Exchange, itself combined these days with another exchange called Euronext.
Felix's basic point — and this may require a bit of gray-cell exertion to get — is that there are basically two distinct worlds in which trading happens: the old school world of stocks, with which we're at least passingly familiar; and a new school world of trades in products that are based on some other product or asset — derivatives.
The derivatives market is vast. But the vast majority of people probably hadn't even heard of derivatives until the financial crisis, when "collateralized debt obligation" and "credit default swap" lurched into the popular vocabulary.