I was reading some of the enhancement requests Navinder asked his broker firm to build into his trading application. Here's a quote from the FT. "He said he wo

I was reading some of the enhancement requests Navinder asked his broker firm to build into his trading application. Here's a quote from the FT. "He said he would “like to be able to alternate the closeness ie one price away or three prices away etc etc”, and needed “a facility to be able to enter multiple orders at different prices using one click” and a function that would cause his “order to be pulled if there are not x amount of orders beneath it”, according to the DoJ’s criminal complaint." He also asked for a feature that would allow him to cancel on closeness, so if the market price started drift close to his buy/sell price he would cancel. Now the interesting thing about thing about these features is that if you've ever worked at an investment bank, these features are not dissimilar from the kinds of requests you would get from trading desks. For example, there are a number of algos out there that try to stay second on the order book. They may not cancel the order, but widening a spread is effectively the same thing. As for a country with limitless resources hunting down an individual for playing the game and winning is farcical. They should be thanking him for highlighting how ludicrously vulnerable their market place is.