«Conveniently, when CHX's preferred market participants engage in the activity of updating prices of SPY due to
changes in the price of S&P 500 futures using sophisticated pricing
algorithms, it is generally beneficial, whereas when another market participant does the same thing, it «diminishes displayed liquidity and impairs price
discovery.»»
Michael Bhaskar, digital publishing director of Profile Books in the UK, will talk about the recent, profound
changes Google has made to its
discovery algorithms, from the advent of PageRank to the new Panda / Farmer process.