As a slice of Chicago trading life in the early 2000s this is interesting, but mainly it is an overlong tale of every jot and tittle that ever went down during the merger of the Chicago Mercantile Exchange (the "Merc" or CME) and the Chicago Board of Trade (CBOT) in mid-2007. As the author relates, through most of their history they were bitter rivals and it was hard for employees at either to ever imagine them coming together. But Terry Duffy of the Merc and Charles Carey of the CBOT both were Irish-American South Side Chicagoans who made an effort to try it out. The Merc had gone from playing second-fiddle to the larger exchange and it had IPOed first. The CBOT had fallen behind on things like electronic trading and it IPOed just in 2005 and had long resisted their essential ag contracts to go "side-by-side" with both pit and electronic trading. Thus the merger was effectively a purchase of CBOT by CME.
The merger was complicated however, because Jeff Sprecher, who had turned an incohoate California energy producer into the Intercontinental Exchange (ICE) in Atlanta made an even juicier offer for CBOT, valuing it at well over $10 billion. A bidding war started, often involving the tightly held B-shares still owned by the CBOT members and their claim to have open seats on the Chicago Board of Options Exchange (CBOE) which had spun off back in 1973. It was a tight-knit group both sides had to convince, as well as the DOJ, but in the end the Merc, with a technically smaller deal, but more experience and tradition, won out, and the merger went off smoothly, soon leading to the total purchase of NYMEX.
The bare bones of the story are interesting, as well as insight into how traders worked and how the economics team designed new "products" for the exchanges and encouraged them with sweet market-maker deals, but this is just too long with too many characters (all called by their first name, since this is an insider account, which can get confusing.) It would have been better if it was 1/3 the length and more focused.